Modular barrier system for satisfying needs unique to a specific user

Information

  • Patent Grant
  • 6782624
  • Patent Number
    6,782,624
  • Date Filed
    Thursday, March 14, 2002
    22 years ago
  • Date Issued
    Tuesday, August 31, 2004
    19 years ago
Abstract
A method of deploying a system for controlling access and egress. In a preferred embodiment, the user's requirements are considered in providing a properly scaled barrier for such varied uses as security, safety, order, privacy, and discipline. In one embodiment, pre-manufactured panels and connectors are delivered to a site that has been properly prepared for installation of the system. Local materials may be used for the panels in some cases. The panels and connectors may be assembled quickly by unskilled labor and, in some embodiments, the barrier just as quickly dismantled or repaired as necessary. One method of the present invention provides for deploying a temporary or emergency solution to access control. Another method deploys a system that may be used in a residential setting, providing storage in some installations. Accessories for enhancing effectiveness may be installed on or within barriers deployed using a method of the present invention.
Description




BACKGROUND




A requirement for a security barrier was announced by the US Border Patrol. They needed a barrier able to be built from readily available materials. Further, it must be easy to build (not requiring skilled labor) and modular to adapt to varying local conditions and changing scenarios. A preferred embodiment of the present invention is designed for use under various applications. Thus, initial design criteria were based upon the needs of the U.S. Border Patrol for a barrier to use under a variety of conditions to control border access. Criteria included:




It must be solid to hamper the passing of drugs across it and prevent penetration of bullets to the other side.




It must be robust against degradation of its function while maintaining its structural integrity. Degradation sources include scaling, burrowing under, ramming by vehicles, cutting, and repeated hammering and chipping.




It must inhibit immediate traversal to facilitate apprehension of the transgressor.




It must be maintained at relatively low cost with maintenance easy to perform quickly in order to minimize exposure of maintenance personnel.




It must be usable in all types of geography, including hilly and rough terrain.




It must “work well and last a long time” irrespective of the type and frequency of repairs.




It must minimize the danger to the Border Patrol and other personnel working at the border.




Because the Border Patrol cannot control what is done on the “foreign side” of the barrier, design criteria must account for this limitation. Of course, such a barrier might be adapted for other uses, especially those for which less stringent requirements may exist.




Previous barrier designs used to aid the Border Patrol have failed to control access across the border. Various designs of wire mesh fences, commonly used in prisons and schools, have been easily destroyed by transgressors. A barrier constructed from surplus temporary airfield landing mat is currently installed between San Diego, Calif. and Tijuana, Mexico. On the southern border with Mexico, fencing is installed only near population centers. Hence, only as many as 98 Km (60 miles) of the more than 3100 Km (1900 miles) is fenced. The excess steel landing mat will be exhausted long before any significant amount of border is fenced. The steel landing mat barrier is difficult to maintain and is easily circumvented by scaling or digging under the fence, sawing, use of a cutting torch, ramming, etc.




A bollard fence design has been installed as both a primary and secondary barrier (a second barrier located north of the primary barrier) at the same location. This bollard fence is a staggered line of vertically oriented concrete posts spaced at 10-12.7 cm (4-5 inches) and embedded in concrete. The posts are vulnerable to chipping, require concrete forms that must be installed by skilled contractors, and may be vandalized easily while curing. Transgressors can both see through and reach through the bollards, allowing them to pass drugs and even shoot through them. Proposals to enclose the bollards in steel tubes may make them less vulnerable to attack. This still allows transgressors to reach through the fence and still requires skilled contractors to construct and repair them.




In selected areas there are also impediments at low heights for deterring vehicle traffic. A fence has been installed between El Paso, Tex. and Mexico that is aesthetically appealing, but not resistant to vandalism. The fence is constructed of lightweight panels a few inches thick, mounted on support poles a few inches in diameter. Attacks by blunt instruments can easily create gaping holes in the fence. Ramming by a vehicle can severely damage the fence. In addition, resultant openings allow transgressors to transfer illicit items.




Existing designs fail to meet needs of the Border Patrol at a reasonable cost over their life cycle. A preferred embodiment of the present invention provides a cost effective solid barrier to human and vehicular intrusion that meets all the requirements of the Border Patrol and similarly situated agencies and organizations and may be adapted for commercial or consumer use.




SUMMARY




An embodiment of the present invention provides a method of deployment for an economical multi-purpose barrier in applications such as a primary barrier at an international border, security for military installations, and general security, safety or privacy applications in police, industrial, recreational, commercial, environmental, or residential applications. In one embodiment, the method provides a barrier that is solid and highly resistant to damage. In an embodiment of the present invention the method provides a barrier that combines the properties of a high strength panel, such as steel or a high strength polymer, and a masonry wall, such as concrete or pumice-crete. The exterior of this barrier is comprised of interlocking panels that serve as:




armor against attack (both above and below grade);




enclosures for in-fill material, such as fill dirt, sand, or concrete; and




a mechanism for transferring an external force applied against any individual section to neighboring sections.




In this barrier, the exterior panels have interlocking joints that resist physical intrusion without the addition of in-fill material. The addition of in-fill material provides additional support for the connections, thus providing additional protection against attack. Besides providing additional mass against ramming, solid in-fill also provides a formidable barrier against intrusion should exterior panels be removed or damaged. The external panels may be embedded in the ground, providing significant resistance to ramming, tipping, or burrowing beneath the barrier. Additionally, the barrier may be anchored internally to resist tipping; forces applied near its top.




A barrier deployed via a method of the present invention is installed quickly and easily. Further, should the need arise, it may be repaired without the need of special tools, heavy equipment, or concrete forms. In one embodiment of the present invention, a trench of suitable dimensions, such as approximately 0.9 m (3 ft) deep by 1.6 m (5 ft) wide, is dug the length of the section to be installed or the length of a reasonable portion of the entire boundary desired to be protected. After emplacing and connecting panel sections in the trench, a suitable in-fill material, such as concrete, is placed between the panels. To hold a cementitious mixture until setup, a temporary removable form may be used at one or both ends of a suitable length comprising one or more sections of the barrier. This form may be used with suitable soft material and left in place to comprise an expansion joint for the concrete. Deterrents may be affixed to the top of a completed section and secured on the “protected” side of the barrier by suitable means, such as welding, epoxy, mechanical fasteners, or combinations thereof. Alternatively, pre-connected (“protected” side and “transgressor” side) sections can be dropped into place in a trench as needed, the trench backfilled quickly, and the resultant barrier serve the same purpose as an “in-filled” section, at least temporarily.




Advantages of a preferred embodiment of the present invention that provides maximum resistance to an aggressive transgressor include:




prevents ready ingress by surface or sub-surface based transgressor;




requires greater effort and more time to breach than conventional designs;




makes penetration by a welding torch, chipping, cutting, or other mechanical means difficult and time-consuming;




provides no purchase for a person to breach the top from either direction because of its smooth barrier walls extending high above the ground at a steep angle since there are no external connections needed to be made when installing the panels;




prevents transgressors from using it to survey an area because of the narrow width at its top together with optional detectors and deterrents that may be placed at its top;




optional deterrents may be used based on specific needs, locations, times and expected transgressors;




optional deterrents affixed to the top of a high version require a transgressor to work at an unsafe height at a risk of serious injury from a fall;




detectors and deterrents may be repaired on the protected side of the barrier below its maximum height, thus, shielding the workers from potential transgressors;




detectors and deterrents may not require urgent repair since the height, shape and texture of the barrier makes breaching more difficult than conventional systems;




repairs can be postponed since defeating the barrier's purpose requires both panels and the in-fill material to be removed or damaged;




use of interlocking high strength panels as permanent forms for the in-fill material and as a structural member of the barrier facilitates both rapid installation and rapid repair of the barrier;




may be installed over existing barriers, resulting in a barrier that uses existing structure as part of its “in-fill” material for providing added strength without incurring time and expense to remove the existing system; and




replacement panels may be welded or epoxied over any gaps in the barrier caused by major damage from sophisticated transgressors and new in-fill material quickly added to re-establish barrier integrity.




Further, all embodiments share the following advantages:




can be assembled easily by workers needing no special skills;




low maintenance costs;




increased flexibility for use so that a less durable design may be applied to commercial, environmental, industrial or even residential use;




high reliability;




simplified design of alternate configurations to include mobile or temporary installations;




ability to use different modules at the top to meet specific requirements as they arise; and




ready upgradability to state-of-the-art modifications.




The design of a preferred embodiment of the present invention makes it adaptable in applications where conventional barriers cannot be used effectively, easily or economically. The simple design of the barrier allows the substitution of existing local materials for in-fill material in the construction of the barrier body. For example, sheet pile may be substituted for a panel. Rebar can replace connecting rods. Very large nuts or steel pipes cut into small sections can be welded to the panels to act as the connection between the connecting rods and panels. Where little or no in-fill material is used, the connecting rods can be oriented diagonally and secured with turnbuckles that can be locked down using double nuts. If sheet pile were attached or changed, the only design adjustment needed is the adaptation of the cover shell to the sheet pile shape.




Various intrusion detectors and deterrents may be attached to a barrier deployed using a preferred embodiment of the present invention so that it may be adapted readily to changing threats. Detectors and deterrents may include: wire mesh extensions; various detectors including pressure sensitive, motion, infrared, electromagnetic, and combinations thereof; surveillance devices using video, audio, RF and optical bands; and razor or whip wires. Further, anti-personnel deterrents such as pepper spray or o-chlorobenzylidene malononitrile (CS gas) could be activated by sensors. Military applications may use the same assortment as above and include detectors attached to lethal anti-personnel devices and shielded enclosures for use by heavily armed military personnel. In a commercial or residential setting, decorative plants may be added along the top. Further, in some applications where in-fill material is not used or used to fill only part of the void, parts of the panels used on sections of the barrier may be designed to be opened along one side for access to controls for deterrents or for storage of items such as tools, hoses, fertilizer, swimming pool equipment, etc.




Specific applications of a barrier deployed with a method of the present invention include vehicular barriers to deter terrorist car bomb attacks and a barrier rapidly constructed for use by the military in combat. The ability to construct a barrier using unskilled labor and to fill it with dirt, sand or stabilized earth (i.e., a bag of Portland cement is added to each cubic yard of dirt) makes it practical for military use where there may be limited availability of heavy equipment or concrete. Using a hardened filler, such as concrete or pumicecrete as formulated in U.S. Pat. No. 4,373,955, Lightweight Insulating Concrete, issued to Bouchard et al., the barrier is resistant to conventional munitions, such as bullets, shell shrapnel, and non-armor piercing shells. Further, a properly anchored barrier of appropriate size may prevent tracked vehicles from crossing the barrier unless an inordinate amount of time is taken to demolish it beforehand. Additionally, a barrier may be installed over existing barriers. This results in a barrier that did not incur the cost of demolition of an existing ineffective or damaged barrier but can use this existing structure as part of its “in-fill” material for providing added strength. At the opposite end of its application spectrum, a barrier may be used to contain domestic animals and pets or even as a part of a fence with built-in storage for a residence in an urban setting.











BRIEF DESCRIPTION OF DRAWINGS





FIG. 1

is an end view of a barrier deployed using a method of the present invention that shows all components assembled and installed for a primary barrier application.





FIG. 2

shows a perspective of three sets of assembled panels (sections) of

FIG. 1

without any of the various physical deterrents that may be attached at the top.





FIG. 3

provides a top view of the panels of a barrier deployed using a method of the present invention, providing details of the interlocking flanges and the connectors used.





FIG. 4

depicts the components used for basic assembly of the frame used for a barrier deployed via a method of the present invention and illustrates the assembly steps for the panels shown in FIG.


2


.





FIG. 5

illustrates passive deterrents that may be incorporated in a barrier deployed via a method of the present invention.





FIG. 6

illustrates aggressive deterrents that may be incorporated in a barrier deployed via a method of the present invention.





FIG. 7

illustrates lethal aggressive deterrents, coupled with sensors, which may be incorporated in a barrier deployed via a method of the present invention.





FIG. 8

illustrates a non-lethal deterrent system combined with sensor and alarm that may be incorporated in a barrier deployed via a method of the present invention.





FIG. 9

illustrates a triangular cap that may be incorporated in a barrier deployed with a method of the present invention.





FIG. 10

illustrates a rounded cap that may be incorporated in a barrier deployed via a method of a preferred embodiment of the present invention.





FIG. 11

illustrates an end view of an embodiment that may be incorporated in a barrier deployed via a method of the present invention in which the angle of inclination is different for each of the panels comprising a section.





FIG. 12

is an end view of an embodiment such as represented in

FIG. 11

having a top suitable for growing vegetation.





FIG. 13

is an end view of a section of a that may be incorporated in a barrier deployed via a method of the present invention designed to be freestanding for use in applications where it may be disassembled and transported to another site.





FIG. 14

depicts a pair of panels, the braced connections thereto, and an access door in one of the panels, using the center reinforcing bar to mount a hinge for the access door that may be incorporated in a barrier deployed via a method of the present invention.





FIG. 15

depicts some of the details for forming a flat sheet of material into a panel used that may be incorporated in a barrier deployed via a method of the present invention.





FIG. 16

depicts a detail of a marker system that may be incorporated in a barrier deployed with a method of the present invention.





FIG. 17

is an end view of a barrier deployed using a method of the present invention that shows all components assembled and installed for a primary barrier application to include a buried wall for prevention of tunneling under the barrier.











DETAILED DESCRIPTION




Preferred embodiments of the present invention may be used to promote any one or a combination of the following: safety, security, privacy, discipline, and order. A preferred embodiment of the present invention envisions a method of deploying a universal design for a durable, reliable, easily constructed and maintained access and egress control system, many components of which may be modular to meet varying user requirements. Refer to FIG.


2


. One method employs a design featuring pairs of panels


101


of high strength material that are joined via simple connectors


102


to form an A-frame section


200


, open at its top. These panels


101


are normally much wider than they are thick and longer than they are wide, i.e., at least forty times wider than thick and at least twice as long as wide. However, maximum dimensions are determined by shipping and handling considerations. For example, a homeowner would probably feel comfortable with a 1.8m×0.9 m (6 ft×3 ft) panel


101


of 6.25 mm (¼ in) thickness or less, while a construction company could handle a much larger array.




Refer to

FIG. 1. A

heavy-duty barrier designed to resist encroachment by all but heavy equipment and tanks may use steel panels


101


that are 4.6 m (15 ft) long by 0.9 m (3 ft) wide by 9.5 mm (⅜ in) thick, with a backing of in-fill material


108


such as concrete. A panel


101


of this size may be emplaced using four men if heavy equipment, such as a truck-mounted crane, is not available or the terrain is too rugged for deploying the equipment. To further insure against tipping this barrier, one may deploy at least 10% of its height


103


in a trench


107


dug for the purpose. For panels


101


that are 4.6 m (15 ft) high deployed at an international border, a trench


107


that is 0.9 m (3 ft) deep by 1.6 m (5 ft) wide suits the purpose, while backfilling the trench


107


with concrete provides additional strength. Further, in one embodiment in which it is important to deter climbing, a steep angle


104


is employed, e.g., inclining each panel


101


toward the other only 7° from the vertical provides a sufficient base width to deter tipping while also making unassisted climbing impossible. The panels


101


may be constructed of: steel, stainless steel, a metal alloy, aluminum, a polymer, a resin, a composite, a carbon fiber, a laminate of at least two of the above materials, and any combination thereof Further, they may be treated to inhibit environmental degradation; e.g., an anodized surface, paint, or other protective coatings may be applied.




For a high barrier, these panels


101


are placed with their longest dimension nearly vertical. Refer to

FIG. 3. A

series of these A-frame sections


200


are joined in an interlocking fashion, using interlocking flanges


302


at each panel's longest (longitudinal) edges. The connecting rods


102


may be simple metal rods bent 90° down (or adjusted as needed to accommodate individual installations) at each end to slip into a hole provided in a component


301


located on the inside of each of the panels


101


. There may be several of these connecting rods


102


per section


200


. depending on the strength requirements called out by the user. These rods


102


may be made of rebar in various diameters, sized to fit the job. They may fit connecting points


301


(slots or holes configured on the insides of the panels


101


that are reinforced by affixing a connecting bar holder


303


used to receive all of the connecting rods


102


and incorporating the component


301


having a slots or holes along a centerline of the panel


101


.




Refer to FIG.


1


. One embodiment reinforces the A-frame sections


200


by filling at least part of the volume between the panels


102


with in-fill material


108


. Use of indigenous material saves the cost of shipping while potentially providing local businesses with income. By inserting heavy-duty rods


102


across the panels


101


, the tendency for the panels


101


to bulge out when the A-frame sections


200


are filled with heavy in-fill material


108


is minimized. The in-fill material


108


may consist of: a solidified mixture, concrete, pumicecrete, dirt, sand, rock, rip-rap, rubble, inorganic material, aqueous solutions, and any combination thereof. Refer to FIG.


13


. For example, if to be used for a temporary application, such as an outdoor concert in a field, the barrier may be secured quickly by filling water bags


1302


internally positioned above a flange


1301


at the bottom of each section


200


. Refer to

FIGS. 9 and 10

. Once filled, even partially with in-fill material


108


, certain embodiments of the A-frame sections


200


are capped using either a narrow rounded cap


105


that inhibits any kind of purchase, should one wish to scale the barrier, or a triangular cap


901


that facilitates adding accessory detectors and deterrents (as shown in

FIGS. 5-8

,


16


and


17


) near the top of the completed barrier. These caps


105


.


901


may interlock with flanges


902


incorporated at the top ends of each of the panels


101


comprising each section


200


, thus facilitating set-up, maintenance, tear down, removal, and modification or upgrading of the barrier.




Refer to

FIGS. 5D and 12

. One alternative embodiment envisions no cap and the use of a soil mix


1401


at the very top of the in-fill material


108


for growing “unfriendly” vegetation


505


, e.g., thorny or dense heavy shrubs, along the top of the barrier. Proper cultivation may require drain holes (not shown separately to be drilled in the upper sections of the panels


101


as well as irrigation hoses (not shown separately) running the length of the barrier's top.




At one end of the spectrum of barriers, one envisions panels


101


as short as only 0.9 m (3 ft) high by 0.3 m (1 ft) wide and a mere 1.5 mm ({fraction (1/16)} in) in thickness for easy installation by a consumer to contain toddlers and domestic climbing animals, such as house cats, in a portion of a back yard, for example, while also providing a small growing area at the top for a privacy shrub or flowers


1402


. Another consumer application may provide for some sections


200


to slide or open vertically on hinges, providing access to the interior of the barrier along one side so that items may be stored within, such as garden tools, hoses, folding outdoor furniture, children's toys, etc. In this way the need for large separate storage sheds may be minimized or eliminated.




In remote locations, or less developed countries, one may find that making one's own panels


101


is necessary. The panel material may be sheet pile. Receivers


301


for bent rebar connectors


102


may include zinc-coated nuts, large washers, eyebolts, or short pieces of pipe welded to a bar, or multiple short lengths of bars, used as connecting bar holders


303


along the center of the inner side of the sheet pile panel


101


. Should the sheet pile flange


302


(designed for vertical installation) prove to be unwieldy for easy installation of a neighboring panel


101


via horizontal attachment, a wedge (not shown separately) can be used to enlarge the flange


302


so that a horizontal tug on the inserted panel


101


will lock it to the existing section


200


.




For ease of manufacture and control of inventory, one embodiment of the present invention envisions panels


101


that are identical for each installation and symmetric with respect to their two sets of parallel sides when turned 180° in the plane in which they are to be installed. To further deter climbing, a preferred embodiment of the present invention has those panel sides that face outward smooth and in the same plane, i.e., free of protuberances or indentures by which an individual or animal may obtain a purchase.




Certain auxiliary devices as shown in

FIGS. 5-8

,


16


and


17


may be mounted on some embodiments. In addition to those already listed, these include, but are not necessarily limited to: detectors, alarms, lighting, active deterrents, passive deterrents, and dye markers.




Detectors include those that detect disturbances by operating in ranges such as: audio frequencies, video frequencies, visible wavelengths, infrared wavelengths, ultraviolet wavelengths, radio frequencies, pressure, and combinations thereof.




Alarms may be silent, from a hard-wired or wireless system, to a central receiving station; audible such as a siren; sub-audible at levels that cause anxiety; visual, such as flood or strobe lights, and combinations thereof.




Lighting may be in the visible, infrared, or ultraviolet spectrum, and may be flood lighting, strobe lighting, scanned, and combinations thereof.




Passive deterrents may include, but are not necessarily limited to: wire mesh fencing, barbed wire, razor whip wire, concertina wire, and combinations thereof




Active deterrents may include, but are not necessarily limited to: sensor-activated chemical sprays, sensor-activated munitions, electrically-charged wires, and high-powered electromagnetic devices.




Dye markers may include, but are not necessarily limited to: fluorescing stains facilitating unaided visibility at night, fluorescent dyes visible under ultraviolet light, and dyes visible by the use of infrared lenses.




A tailored barrier deployed in accordance with a method of the present invention is designed to meet a specific user's needs. A process of providing a tailored barrier may involve:




defining a user's requirements;




developing a design with built-in flexibility to meet the user's requirements;




acquiring materials for producing the design;




scheduling resources to build to the design;




building the design in situ;




acquiring resources to maintain the as-built structure, as necessary;




updating the design as a user's requirements dictate, as necessary; and




upgrading the as-built structure based on these updated needs and currently available technology, as necessary.




Of course, certain applications are generic to a large number of users or types of users, so that once this type of user has been identified and needs defined, this process need not be carried out for each fabrication and installation of a particular preferred embodiment of the present invention.




Refer to

FIGS. 1 and 4

. A method for comprising a preferred embodiment of the to present invention includes:




uniformly grading the surface upon which a barrier is to be installed;




acquiring and delivering necessary materials to a user's site to include panels


101


connectors


102


, optional caps


105


,


905


optional auxiliary devices, and in-fill material


108


, as necessary,




building the barrier section by section by:




vertically positioning two panels


101


along the axis that parallels edges of the panels


101


incorporating interlocking flanges


302


, the sides of the panels


101


having receptors


301


facing opposite one another;




joining these panels


101


in a single A-frame section configuration


200


open at its top, by tilting the panels


101


toward each other and affixing appropriately sized connectors


102


to the appropriate receptor


301


on each panel


101


;




building and interconnecting additional A-frame sections


200


to achieve a desired length by tilting individual panels


101


onto the started A-frame section


200


one at a time, pulling the new panel


101


horizontally to interconnect the flanges


302


, and completing the connection of appropriate connecting rods


102


of the new two-panel A-frame section


200


before proceeding with the next section


200


;




in one embodiment, filling the volume between the sections


200


at least part way to the top with in-fill material


108


using end panels (not shown separately) as necessary to contain the in-fill material


108


at intervals determined by physical constraints, and at the terminus of the structure; and




in one embodiment capping the top with a cap


105


,


901


; and




installing auxiliary devices as required by a user.




Preparing the surface may include placing panels


101


of the barrier in a trench


107


having a uniform grade. A nominal depth may be at least the first 10% of height


103


. The trench


107


is backfilled after construction, which may include the option of filling at least part of the interior volume with in-fill material


108


.




Refer to

FIG. 17

showing a barrier system


1700


that deters tunneling. An impermeable subterranean wall


1701


may be constructed vertically along the length of a barrier deployed in accordance with a method of the present invention and below its lowest point


106


of resting.




Refer to

FIGS. 1 and 17

. An embodiment of the present invention provides a method of deploying a barrier for impeding both unassisted human and surface vehicle access. Because the barrier is designed to result in an integrated whole that results in a structure that at any location is greater than the strength of any single component, this method provides the following benefits:




provides a barrier, with optional subterranean foundation


107


, that affords a reasonable response time to security personnel by resisting aggressive destruction by hand and power implements to include pneumatic hammers and related construction tools; prevents breach by a vehicle of approximately 4000 lb. traveling at speeds up to 80 Km/h (50 mph);




prevents breach by tracked vehicles or heavy equipment from ramming through or driving over it when it is filled with in-fill material or anchored to underground walls or foundations, or any combination thereof;




impedes human access by scaling, climbing, grappling, or similar means by use of smooth nearly vertically inclined wall surfaces, extreme height


103


, and auxiliary deterrents placed near its top;




impedes access by underground penetration due to embedding below ground level an underground wall


1701


that may be tied structurally to it, and combinations thereof;




impedes disassembly via damaging or removing connection joints or embedded connecting rods


102


by shielding the joints with steel providing little or no purchase and using concrete or other material to fill the interior volume;




facilitates quick installation by providing components that are modular and able to be manufactured easily, are able to be transported to the construction site in a compact configuration, and are easy to be assembled in situ using unskilled labor;




facilitates assembly without the need to survey the installation site;




provides an initial barrier even with no in-fill material


108


installed;




serves as a barrier before concrete used as in-fill


108


is cured;




withstands a significant amount of damage, while maintaining its integrity, before repairs are necessary;




facilitates repair of voids quickly and easily by securing replacement cover plates or entire sections, e.g., securing by mechanically securing, welding, gluing or using other means of attachment, and filling the voids with concrete or other solidifying in-fill material;




facilitates repair or replacement of entire sections from its protected side;




makes use of commercially available materials such as sheet pile, fiberglass, advanced polymer composites, rebar, or pipe to construct or repair it; p


1


accommodates interchangeable auxiliary devices for use as detectors and deterrents, for example:




force detector actuators such as mechanical lever arm or pressure plates that actuate alarms or deterrents;




noise sensors that upon breach of a pre-determined threshold activate alarm or deterrent devices;




ink spray disposed after a pressure detector or light sensor is activated, e.g., a coded ink spray that adheres to skin, remains for 30 days and may be read in either visible or ultra-violet light;




GPS to determine the location of an intrusion attempt;




razor wire and spikes attached as a physical deterrent;




triggered explosives using pressure or light sensors;




irritants, such as pepper gas, released upon a pressure or light sensor activating;




electric discharge with or without activation by a sensor such as a pressure sensor, further providing that if a continuous discharge is detected deactivation may be accomplished; and




provides for adjustable de-activation delays to be incorporated in any of the detectors or deterrents.




Refer to FIG.


1


. In a preferred embodiment of the present invention, the configuration consists of panels


101


connected by horizontal rods


102


to form an A-frame configuration


100


. These panels


101


may be interlocking, pre-fabricated carbon steel panels


101


as shown in profile and side views, respectively, in

FIGS. 2 and 3

or panels


101


constructed of materials of similar strength and cost.




Details for laying out a panel


101


to be fabricated for use with an embodiment of the present invention are depicted in FIG.


15


. Shown is a flat sheet


1500


of suitable material such as sheet steel. Should the design call for top flanges


1505


and bottom flanges


1504


in addition to the interlocking longitudinal flanges


1502


,


1503


, these can be provided by following a design that calls for cutting sufficient material from the corners


1501


and bending the flat sheet


1500


at the heavy dotted lines


1506


. Note that the final required height


103


must take into account the loss in height as a result of forming flanges


1505


,


1504


along the top and bottom. Further, the top flange


1505


may be bent in either direction depending on whether a cap is to be secured internally or externally. The longitudinal flanges


1503


and


1502


are configured so that one


1503


is bent towards one face of the panel


101


and the other


1502


toward the other face, as depicted in

FIG. 15

, to facilitate interlocking the panels


101


while providing a smooth outer surface.




Refer to

FIGS. 1 and 2

. The panels


101


are connected on each side by internal connecting rods


102


that are hidden from transgressors by the outer skin


201


of the panels


101


. The length of the panels


101


and connecting rods


102


can be adjusted for a barrier height


103


and angle of inclination


104


suited to a particular application. For installation along an international border, the primary barrier panels may extend 4.6 m (15 ft) in a direction inclined from vertical at an angle of 7°. This provides a tall barrier configuration


100


with steep smooth walls that inhibit the unassisted purchase of a would-be transgressor. The panels


101


may be steel of 6.5 mm to 9.5 mm (¼ to ⅜ in) thickness and treated to prevent rust. The connecting rods


102


may be steel of 2.5 cm (1 in.) diameter, that are bent at their ends to slide into the steel cylindrical connectors


301


fitted at intervals along the length of each of the panels


101


. Rebar of 2.5 cm (1 in.) diameter, appropriately bent on each end, can be used as a connecting rod


102


. The frame


200


is self-supporting, requiring a trench


107


dug wide and deep enough to stabilize it at its base


106


. For example, a panel 4.6 m (15 ft) long, as inclined at 7 degrees, may be set in a 0.9 m (3 ft) deep ditch about 1.6 m (5 ft) wide. This yields a barrier about 3.4 m (11 ft) above, the top of the trench


107


. Of course, a deterrent, such as wire mesh


502


or concertina wire


603


, may be attached to the top of the structure to increase the height


103


.




The trench


107


is dug the required length, breadth, and depth. Refer to

FIG. 4

for the A-frame section


200


fabrication and installation. Emplacing the panels


101


in a trench


107


, for example, one about 0.9 m (3 ft) deep, provides a solid foundation for a barrier deployed in accordance with a method of the present invention when in-fill material


108


is added. Embedding the panels


101


into the ground


109


provides significant resistance to tipping while also deterring tunneling under it. If a barrier deployed in accordance with a method of the present invention is installed in loose soil, repeated long term ramming or attack by heavy equipment or tracked vehicles may tip it. Refer to FIG.


17


. Thus, as an option, an underground concrete wall


1701


or steel plate (not shown separately) may be installed under an A-frame section


200


to further anchor it and deter tunneling. This optional underground wall


1701


can be tied into the structure of the panels


101


or connecting rods


102


before in-fill material


108


is added. This underground wall


1701


or plate may be tied into the A-frame section


200


to provide greater stability. The underground walls


1701


may also be added after barrier installation.




This addition of buried anchoring structure


1701


makes it very difficult for heavy equipment or tracked vehicles to breach a barrier deployed in accordance with a method of the present invention. The underground wall


1701


can extend the barrier to any practical depth required and may incorporate intrusion detection devices (not shown separately) of its own. Tunneling is impeded since the transgressor must choose to either dig deeper, penetrate it, or defeat detectors and deterrents at its top. Each of these options provides additional time for emergency responders to address any attempted transgression, especially if detectors are located at both the top of the barrier and in the underground wall


1701


.




The panels


101


and connecting rods


102


are brought to the site and placed in stacks


404


distributed along the length of the intended barrier on either side. Following a four-step process


401


, the panels


101


are set in the trench


107


one across from the other and the connecting rods


102


are inserted into the respective cylindrical connectors


301


. Additional panels


101


are set in the trench


107


, connecting rods


102


inserted and interlocked with an installed set of panels


101


. This continues for the length of the barrier. After several sections


200


are connected, the A-frame section


200


becomes an enclosure for in-fill material


108


such as concrete, pumicecrete, soil, or sand. Once the A-frame section


200


is set in place, the enclosure and the trench


107


are filled with the in-fill material


108


. This provides optimum mass at the bottom


106


of the barrier where vehicular impact most likely will occur. If concrete or pumicecrete is poured into the enclosure, it can be left to cure with no need for surface finishing. Any attachments, such as deterrents or detectors, may be affixed to the top of the barrier by welds, epoxy, mechanical fasteners, or combinations thereof after the in-fill material


108


is emplaced.




The simplicity of the barrier design allows substitution or replacement of panels


101


, connecting rods


102


, and cylindrical connectors


301


by less expensive alternatives. Use of sheet pile, rebar, and nuts or pipe sections can reduce installation and maintenance costs. Sheet pile can be cut to the same length as the panels


101


and connections made at the same height. One problem with sheet pile is that the linkage process requires the sheet pile to be raised up and lowered into place. The flanges


302


for the sheet pile are shaped so that the flanges


302


will not overlap by pulling the ends together. This shortcoming can be overcome by using a wedge to widen the flanges


302


so they may be pulled together to overlap. A cover shell


105


,


901


for a deterrent attached to the top can be constructed so it will fit any type or size of panel


101


, i.e., made to fit over the widest part of any end configuration of the panels


101


.




Refer to

FIG. 3. A

barrier deployed in accordance with a method of the present invention provides for an interconnected, overlapping detail


302


for the vertically oriented panels


101


so that there are no external connections needed to be made when installing the panels


101


, providing only a smooth surface upon which a transgressor is unable to obtain a purchase. There is no way to disconnect the joint without lifting up one of the panels


101


against considerable friction and reaction forces. The homogenous solid in-fill material


108


, such as concrete, provides an additional barrier to the weather and to intrusion since the concrete must be chipped away to provide access to each of the connectors


301


. Stripping the panels


101


off a barrier is of little value if the barrier has a cementitious in-fill material


108


for this still leaves a “concrete pyramid” to scale.




Refer to

FIGS. 1 and 3

. A barrier deployed in accordance with a method of the present invention has a bottom portion


106


wider than the top portion. This provides a lower center of gravity to prevent tipping even if not filled with an in-fill material


108


. This design feature allows the amount and type of in-fill material


108


to vary considerably. In a fixed location requiring security in which the threat may be vehicular ramming, concrete or pumicecrete is the preferred in-fill material


108


, at least for the base


106


. For quick assembly in remote locations or for protection from enemy personnel and light vehicles in a mobile situation, the in-fill material


108


can be local soil or sand. The quick assembly and ready availability of local in-fill material


108


provides a buffer against small arms fire while also resisting tipping due to a moderate impact.




EXAMPLE 1




Assembly of the panel section of a barrier deployed in accordance with a method of the present invention is illustrated in FIG.


4


. The components used to construct the A-frame section


200


are trucked to the installation location. The components are comprised of the panels


101


, the connecting rods


102


, fiberboard (not separately shown) and any deterrents or detectors attached to the top. The panels


101


of this example are approximately 4.6 m (15 ft) long by 0.9 m (3 ft) wide by 9.5 mm (⅜ in.) thick but can be sized to widely varying dimensions to meet a user's specific application. Each panel


101


has a connecting bar holder


303


incorporating cylindrical connectors


301


. The connecting bar holder


303


is affixed to the panel


101


via a method suitable to the material, e.g., for steel panels


101


the connecting bar holder


303


may be welded, whereas for polymer panels


101


, the connecting bar holder


303


may be epoxied. Alternatively, a panel


101


may be manufactured with the connecting bar holder


303


and its cylindrical connectors


301


integral to the panel, i.e., the panel


101


may be formed in a shape that includes the connecting bar holder


303


and its cylindrical connectors


301


as a single unit panel, with no separate pieces representing the connecting bar holder


303


and the cylindrical connectors


301


. The connecting bar holder


303


runs longitudinally along the center of each panel


101


, providing a means for inserting and holding the connecting rods


102


. Each section


200


of the barrier contains two panels


102




101


leaned towards one another and a number of connecting rods


102


. In this example, five connecting rods


102


are used. The connecting rods


102


are sized to an appropriate length and located along the resultant A-frame section


200


to provide necessary support for the intended load. A triangular piece of foam board (not shown separately) may be fitted internally (vertically) to the A-frame section every five to ten sections to accommodate thermal expansion of in-fill material


108


, such as concrete. The connecting rods


102


may be prefabricated to the correct size. Alternatively, if rebar is used to fabricate connecting rods


102


, the rebar can be cut and bent to shape on site.




In preparation for installing the A-frame section


200


, a trench


107


is due approximately 0.9 m (3 ft) deep by 1.6 m (5 ft) wide. If the connecting rods


102


are to be sized onsite, the rebar is cut and ends bent for the first section before emplacing the first set of panels


101


. The first pair of panels


101


is tipped vertically on end from a pre-placed stack


404


. All panels


101


are identical so obtaining a matching pair of panels


101


requires tipping two panels


101


on the stack


404


from opposite ends of the stack


404


. Next, the panels


101


are set in the trench


107


with the connection bar holders


303


facing. The connecting rods


102


are attached from the bottom up between the panels


101


so the lower connecting rods


102


can be used as a step to reach the higher connecting rods


102


. The connecting rods


102


may be welded or epoxied in place or simply wrapped with wire to secure them. The inclined panels


101


will now stand by themselves as an A-frame section


200


. After emplacing the first section


200


additional panels


101


can be tipped off the stack


404


and attached to a standing section


200


by linking the overlapping flanged ends


302


. Next, this added section's connecting rods


102


are attached. When an additional panel


101


is attached to a standing section


200


, the additional panel


101


is pulled horizontally (parallel to the length of the barrier) to interlock the overlapping flanged ends


302


between panels


101


. This interlocking of the flanged ends


302


may occur either before or after the connecting rods


102


are attached. The same procedure is repeated until several A-frame sections


200


are assembled as shown in FIG.


2


. Additional rebar can be laid across the connecting rods


102


parallel to the length of the barrier, to provide greater reinforcement should the in-fill material


108


comprise a cementitious solid such as concrete or pumicecrete.




Upon emplacement of a suitable number of A-frame sections


200


(e.g., 5-10), in-fill material


108


, such as concrete, pumicecrete, sand, rip-rap, dirt or other in-fill material


108


may be poured between the panels


101


and the gap between the trench


107


and the panels


101


. Further, the outside of the A-frame sections


200


may be braced until such time as the cementitious in-fill material


108


cures. If concrete or pumicecrete is used it can be trucked to the location and pumped to direct the flow into a desired part of the interior volume created by the A-frame section


200


as well as to the below-grade portion, i.e., the gap, exterior to the A-frame section


200


. In remote locations the concrete or pumicecrete may be mixed onsite.




The in-fill material


108


need not be homogeneous nor all of the same type. For example, concrete may be used as a base up to a certain height and fill dirt, rip-rap, or sand used above that level in any combination of layers thereof. The in-fill material


108


may be emplaced immediately after construction of a minimum length of A-frame sections


200


, e.g., in-fill material


108


may be emplaced between as few as 5-10 A-frame sections


200


. However, even with no in-fill material


108


, as is possible with at least one barrier deployed in accordance with a method of the present invention, the barrier does provide immediate deterrence of the technologically unassisted transgressor. Once the in-fill material


108


has been added a cap may be placed over the tops such as a rounded


105


or triangular


901


cover shell.




Refer to

FIGS. 9A and 10A

. These cover shells


105


,


901


fit loosely over the top of the barrier and may be connected to the panels


101


, preferably on the protected side, by welding, gluing (epoxying), mechanical fasteners, and combinations thereof. Connecting bars


904


can be affixed to the cover shell


105


,


901


and to the panels


101


via welding, gluing (epoxying), mechanical fasteners, and combinations thereof. Further, optional deterrents or detectors, or both, may be attached via various fastening methods to the panels


101


or cover shells


105


,


901


. These may be attached, preferably on the protected side, by welding, gluing (epoxying), mechanically fastening, and combinations thereof The detectors and deterrents are “custom installed” to accommodate each user's unique requirements.




Detectors, such as pressure sensors with mechanical levers, may be incorporated into the shell


105


,


901


by incorporating hinges


601


at the top of the shell


105


,


901


. The deterrents may be attached to the shell


105


,


901


at any time in the cycle, e.g., they may be pre-fabricated at the factory as part of the shell


105


,


901


.




Refer to

FIGS. 5 and 6

. Deterrents may be classified as aggressive or passive. Passive deterrents (

FIG. 5

) serve to impede a transgressor by inconvenience or situational physical discomfort. Examples of passive deterrents are:




a round cover shell


105


as shown in

FIG. 10A

that inhibits trespass by providing no purchase;




a wire mesh extension


502


as shown in

FIGS. 5A-C

on a triangular cover shell


901


that forces a transgressor to lean backwards at the top while the flush fit between the shell


901


and the wire mesh extension


502


provides no purchase until the transgressor reaches the top of the mesh


502


at approximately 4.0-4.3 m (13-14 ft) above grade and the angled extension


502


over the protected side of the barrier makes climbing back from the protected side exceptionally difficult;




sensors


503


as shown in

FIG. 5B

, such as motion, audio, optical, infrared, or pressure detectors, that may activate alarms or lights and notify security forces;




dispensing devices


701


as shown in

FIG. 5C

activated by a pressure sensitive plate


504


that may be affixed to the cover shell


105


,


901


or the wire mesh extension


502


for spraying from a reservoir


506


a non-toxic semi-permanent dye that may be transparent normally but fluoresces under ultraviolet light or illuminates at infrared wavelengths thus enhancing security forces night vision capabilities, or is transparent when first exposed to the air, but reacts with human skin to fluoresce enabling unaided detection by security forces;




heavy vegetation


505


such as shown in

FIG. 5D

, preferably thorny or stinging flora such as pyracantha, nettles, or both, in lieu of a cover shell, in which the top 0.6-0.9 m (2-3 ft)


507


of in-fill material


108


may be soil with drainage provided by holes drilled in the panels


101


.




Aggressive deterrents impede transgressors by causing physical harm or discomfort.

FIG. 6

illustrates four aggressive deterrents: razor whip wire


602


(shown embedded in a round cover shell


105


in

FIG. 6A

) that oscillates violently when disturbed, lacerating the transgressor; a combination of razor whip wire


602


and a wire mesh extension


502


shown in

FIG. 6B

; a combination of concertina or razor wire


603


and a wire mesh extension


502


shown in

FIG. 6C

; and a combination


604


of all three


502


,


602


,


603


shown in FIG.


6


D.





FIG. 7

illustrates other aggressive deterrents. Non-lethal deterrents may include a pepper (or other disabling gas) sprayer


701


as shown in

FIG. 7A

, the container


702


for which is housed within the cover shell


901


, or an electric fence (not shown separately), the power source


703


of which is activated by pressure on the hinges


601


as shown in FIG.


7


B. Lethal deterrents may include mines


705


that are linked to intrusion detectors, such as motion detectors


711


as shown in

FIG. 7D

or video camera


706


mounted on support brackets


707


to view through plexiglass


710


and linked via hardwire


708


to controls


709


as shown in

FIG. 7C

that are positioned to trigger mines


705


as shown in

FIGS. 7C and 7D

upon a transgressor attempting to cross the barrier.





FIG. 8

shows a combined non-lethal deterrent system with sensor


803


activated by pressure on a hinge


601


and an alarm


801


. A wire mesh extension


502


is attached flush with a triangular cover shell


901


. Razor whip wire


602


is attached every 10-15 cm (46 in.) in the wire mesh extension


502


so repairs to or replacement of the razor whip wire


602


can be made without removing the cover shell


901


. Razor wire


603


is emplaced on the wire mesh extension


502


and is supported in place by the razor whip wire


602


. Any attempts to trespass require the removal of the razor wire


603


and the razor whip wire


602


. Razor wire


603


can be added or replaced by tossing extended rolls of razor wire


603


over the end of the wire mesh extension


502


and letting it catch on the razor whip wire


602


. Maintenance can be performed behind the wire mesh extension


502


without exposing personnel to the danger on the other side, i.e., personnel obscured from direct observation are unable to be targeted accurately with thrown objects or advanced weaponry.





FIG. 16

illustrates a marker system that may be used to identify a transgressor should the barrier be breached in a location having the marker system installed. A pressurized container


1601


containing an appropriate dye, such as an ultraviolet (UV) marker spray, is installed in the interior of the barrier. The container


1601


may be accessed on the “friendly” side of the barrier for maintenance at an access point


1602


. The mechanism


1604


that activates the marker system is operated by a simple spring-activated button


1605


that is depressed by a transgressor breaching the barrier. Upon activation of the mechanism


1604


, a marker spray that is not visible to the naked eye is emitted from a number of dispersing locations


1603


. Transgressors can be identified passively by illuminating them with an appropriate wavelength, e.g., “black light” in the UV range will detect a person having been sprayed with a UV marker.





FIG. 9B

illustrates a triangular cap that may be used with an embodiment for which one wishes to install accessories. The cap


901


is intended to slide onto flanges


902


provided on the top ends of the panels


101


for that purpose. It will be appreciated that the configuration of the cap


901


, specifically the portion providing the mating surface


903


for mating with the panel flanges


902


, may be formed from a single sheet of material, e.g., sheet steel may be bent to the shape in a simple and inexpensive process.

FIG. 10B

illustrates the same configuration for a rounded cap, providing a mating surface


1003


similar to that provided for the triangular cap


901


. Further, caps


901


,


105


formed in this manner need not be made in lengths to cover just one or two sections


200


. Similar to forming “continuous gutter,” they may be made in a piece that is as long as the barrier itself in some cases. To provide additional security, the cap


901


,


105


may be fastened to the flanges


902


from the inside using suitable means such as machine screws.




EXAMPLE 2




Another embodiment may provide a barrier suitable for use by the urban homeowner. Further, the sections need not be inclined towards each other at the same angle.

FIG. 11

provides an end view of a basic configuration that might be used.

FIG. 11

is designed to show panel orientation only, showing parts of the panel


101


,


1101


installed below ground


109


with certain details omitted such as the connecting rods


102


, caps


105


,


901


, and optional accessories. One panel


1101


may be installed in a vertical orientation along a property line of one's neighbor. To provide some additional rigidity the thin panel


1101


may have backing


1105


installed continuously or at pre-specified intervals. The other panel


10




1


may be installed in an orientation


1104


similar to that of Example 1. Although

FIGS. 11 and 12

shows the panels


101


,


1101


having partially buried sections


1102


,


1103


, other means of securing them may be used as are detailed below.





FIG. 12

illustrates an option building on the concept of

FIG. 11

that permits some vegetative ornamentation


1402


. Supplementing the design shown in

FIG. 11

with additional detail, a connector


102


and its fittings


301


in the panels


101


,


1101


are illustrated. Instead of a cap


105


,


901


, this embodiment uses a planter


1401


for growing flowers


1402


. The planter


1401


may be secured with tabs or other sturdy supports


1403


further using the backing


1105


on the panel


1101


to support one side. Again, this design need not require partially burying the panels


101


,


1101


as is discussed below.




EXAMPLE 3




A barrier deployed in accordance with a method of the present invention may be used as a temporary solution to a user's needs. For example, outdoor concerts, construction zones, police crime scenes, and special athletic or recreational activities may need controlled access.

FIG. 13

provides a configuration that does not require trenching or otherwise burying the panels


101


. For simplicity, the configuration of Example 1 is shown, although it is possible to use a configuration in which both panels


101


are not inclined towards each other at a similar angle from the vertical. The panels


101


are provided with extended flanges


1301


at their bottom portion. These flanges


1301


may have holes


1303


pre-drilled for insertion of stakes or pins (not separately shown) that can be driven into the ground much like tent stakes. Should this be unacceptable because of the condition of the surface (concrete) or a desire not to disturb the surface, weights


1302


can be used to cover the flanges


1301


. These can be anything that suitably covers the flanges


1301


(shown in

FIG. 3B

in a view cut through


1





1


in

FIG. 3A

) with sufficient weight to provide necessary stability for the intended use. Examples, include filled sand bags, water-filled polyethylene bags sold by swimming pool supply houses, scrap metal, etc. To facilitate assembly and disassembly, the cap


105


may simply slide on over some flanges


1304


in the panels and be connected internally via quick connect plastic fittings (¼ turn) (not separately shown) similar to that used to fasten plastic pieces of automotive trim to potions of an automobile.




EXAMPLE 4




Refer to FIG.


14


. In addition to use as a barrier, a barrier deployed in accordance with a method of the present invention may be used for storage. Additionally, should accessories be used in a more complex embodiment, any power or connections that support the accessories may be supported by an internal arrangement to which it would be advantageous to attain ready access. For this reason, a barrier deployed in accordance with a method of the present invention may also include an access door


1401


. The door


1401


may be secured by appropriate locking means (not separately shown), including deadbolts, padlocks, electronic locks, or combinations thereof, its complexity and strength depending on the use made of the barrier. Because many embodiments will be of considerable height (1.9 m (6 ft) or more), it can be appreciated that, even with the interior partially filled with in-fill material


108


for increasing security, there remains considerable room for storage of material that may be useful to either the home owner or the security professional in working around the barrier. For example, the homeowner may wish to store hoses, garden tools, children's toys, and even folding outdoor chairs and tables within his “fence.” By doing so, he may be able to obviate the need for a separate storage shed or rental space for seasonal items. The security professional, on the other hand, may need to access the underside of the top of the barrier to maintain, repair, or upgrade accessories installed there. Perhaps spares and tools for maintaining or repairing the barrier may be stored inside as well.




The above descriptions should not be construed as limiting the scope of the invention but as mere illustrations of preferred embodiments. Embodiments of the present invention can be applied to a wide variety of uses in a wide range of scale. For example, small sections, with little or no in-fill material, of approximately 1.9 m (6 ft) in height may be used to fence in domestic animals, such as house cats, that otherwise may be able to scale a conventional fence. At the other end of the spectrum, an international border or prison may be protected using sections of 4.6 m (15 ft) or more in height with a significant portion embedded below ground and a significant amount of in-fill material held in place by steel panels of 6.25 mm-9.5 mm (¼-⅜ in.) thickness. The scope shall be determined by appended claims as interpreted in light of the above specification.



Claims
  • 1. A method for constructing a barrier having multiple sections, comprising:building a first section by: providing a first and second panel, each having a first side and a second side, first and second edges along a longest dimension, third and fourth edges along a next longest dimension, said panels described by a length, a width and a thickness, said second side of each said first and second panel provided with at least one receptor, both said first and second edges of each said first and second panel being flanged in opposing directions; providing at least one connector to be affixed to said at least one receptors; orienting said first and second panels so that respective said second sides of said panels face each other; orienting said facing first and second panels vertically with respect to said panels' longest dimension along a line on which said barrier is to be constructed, tipping the top of said vertically oriented first and second panels one toward the other so that said at least one connector may be fit into said at least one receptor on each said panel; fitting said at least one connectors into said at least one receptor on each said first and second panels, said connector serving at least to keep said first and second panels from abutting; wherein a first section having the shape of an A-frame is constructed; building a second section similar to said first section and interconnecting said second section with said first section by: providing third and fourth panels of similar construction and dimension to said first and second panels; providing at least one connector to be affixed to said at least one receptors of said third and fourth panels, said connector serving at least to keep said third and fourth panels firm abutting; interlocking an appropriate edge of a third panel by fitting said third panel to said first panel along said flanged edge having the longest dimension of said first panel of said first section and pulling said third panel roughly horizontally with respect to the surface upon which said first section rests; interlocking an appropriate edge of a fourth panel by fitting said fourth panel to said second panel along said flanged edge having the longest dimension of said second panel of said first section and pulling said fourth panel roughly horizontally with respect to the surface upon which said first section rests; and fitting said at least one connectors into said at least one receptors on each of said third and fourth panels, wherein additional length may be added to said barrier by fitting additional sections to said barrier in the manner of fitting said second section.
  • 2. The method of claim 1 further attaching at least one cap to the top of said barrier.
  • 3. The method of claim 1 further comprising at least partially filling with material the space created internally in each said section through use of said connectors.
  • 4. The method of claim 1 further disposing said barrier in a trench for at least the first ten percent of the height of said barrier, wherein said trench is backfilled after constructing said sections.
  • 5. The method of claim 1 further comprising installing auxiliary devices near the top of said barrier.
  • 6. The method of claim 1 further comprising providing a subterranean wall constructed vertically along the length of said barrier and below the lowest point of resting of said barrier sections.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Under paragraph 1(a) of Executive Order 10096, the conditions under which this invention was made entitle the Government of the United States, as represented by the Secretary of the Army, to the entire right, title and interest in any patent granted thereon by the United States. This and related patents are available for licensing. Please contact Bea Shahin at 217 373-7234 or Phillip Stewart at 601 634-4113.

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