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A portion of the disclosure of this patent document contains material which is subject to intellectual property rights such as but not limited to copyright, trademark, and/or trade dress protection. The owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office patent files or records but otherwise reserves all rights whatsoever.
The present invention relates to a sea wall to reduce the erosion and deterioration of the beach/shoreline by incoming waves. More specifically, the present invention is related to a modular sea wall system installed within the water to reduce the energy of the incoming waves. The modular sea wall system provides a modular system that connects via a tongue and groove connection. The sea wall provides two separate blocking bodies that are constructed from concrete reinforced with welded wire mesh.
Various types of prior art artificial reef systems have been placed on the ocean floor in the vicinity of the shore to prevent beach erosion. In these known systems a principle purpose is to provide a subsurface breakwater structure for deflecting water currents and thereby reduce the damaging force of the waves as they impact on the beach. Another purpose is to provide a structure that has the characteristics of a natural reef and thus is attractive and protective of fish and aquatic organisms. In the case of a breakwater, waves passing over the subsurface structure break a sufficient distance off shore to reduce the energy carried by the waves as they continue on toward the shore. As a result, the speed is diminished and sand carried by the water is permitted to be deposited on the beach rather than being removed by undertow, i.e., the reverse underwater current caused by receding waves.
Certain problems exist with the known art. Known beach erosion systems do not provide a modular system constructed from two pieces that secure to one another similar to the present invention.
U.S. Pat. No. 5,507,594 entitled “Method and apparatus for constructing an artificial reef” issued to Speicher on Apr. 16, 1996 (“the '594 patent”) teaches an apparatus and method for constructing an artificial ocean reef for use below the ocean surface to serve as an offshore breakwater for inbound waves and thereby prevent beach erosion. The reef taught by the '594 patent has a plurality of adjacent sections, each of which comprises an arched wall having a series of side-by-side transverse concrete blocks, and flexible interconnections between the blocks at adjacent lateral edges to provide a generally smooth outer surface. The arched wall sections taught by the '594 patent are each formed above the water surface on a barge or the like and then submerged with a shoreward side having a shoreward end resting on the floor of the ocean and a seaward side with a seaward end resting on the floor of the ocean outwardly from the shoreward end to present the smooth outer surface on the seaward side of the wall to incoming waves. Adjacent sections are secured together to form a continuous barrier aligned with the shore line of the beach being protected.
U.S. Pat. No. 4,958,956 entitled “Submerged flexible wave restraining structure and a method of constructing it” issued on Sep. 25, 1990 to Tanaka (“the '956 patent”) teaches a wave reducing structure which reduces waves propagating on liquid surface from propagating over the reducing structure and a method of constructing the wave reducing structure. The wave reducing structure taught by the '956 patent may be used to form a calm water surface region for harbors, for areas where construction work is being done or for areas where marine sports are to be performed etc. The resilient wave reducing structure taught by the '956 patent includes at least one energy absorbing device having a resilient body constructed on a bottom of the liquid bounding the region where waves have to be reduced and filled with surrounding ambient liquid. The '956 patent teaches that this reduces the amplitude of waves passing over it by consuming the wave energy while it deforms according to the pressure distribution change caused by the waves and by radiating its kinetic energy into the liquid and the ground surrounding it. Because the wave reducing structure is resilient and deeply submerged under water, the '956 patent teaches that it does not hinder ships from passing over it. Therefore, the '956 patent teaches that it becomes possible to create a calm region on a liquid surface without hindering a navigation of ships and without creating a danger of wrecking the ships.
U.S. Pat. No. 7,736,089 entitled “System and method for prevention of beach erosion” issued on Jun. 15, 2010 to Brais (“the '089 patent”) teaches a system and method for prevention of erosion utilizing a sub-tidal platform designed to be lodged at a beachhead. The sub-tidal platform taught by the '089 patent will be placed under water and will contain at least one or a plurality of main trusses exhibiting a curvilinear convex shape and containing a plurality of gates and at least one or a plurality of intermittent trusses exhibiting a curvilinear convex shape and containing a plurality of gates which, when in their closed position, decelerate material entrained with liquid and allow for deposit of said material in the spaces formed by the trusses.
U.S. Pat. No. 4,923,339 entitled “Foldable concrete retaining wall structure” issued on May 8, 1990 to Smith (“the '339 patent”) teaches individual precast concrete wall units for erecting a retaining wall structure each include a face member, a support member, and an anchor member. The support member taught by the '339 patent has a front end portion, that is connected by a hinge to one end of the face member, and a rear end portion, that is connected to one end of the anchor member, either by a tongue-and-slot arrangement or by another hinge. The wall units taught by the '339 patent can be cast straight, thus simplifying the design and reducing the space occupied by the mold. The wall units taught by the '339 patent can also be transported and stored in the straight condition to save space. At the job site, the units taught by the '339 patent are quickly and easily folded into an open bin-like form for placement side-by-side to construct a retaining wall.
US Publication No. 20110236132 entitled “Erosion Control Barrier” issued to Wisegerber on Sep. 29, 2011 (“the '132 publication”) teaches the protection of a shoreline from erosion caused by wave action and reclaiming lost land areas by use of one or more barriers having a porosity to allow a portion of the wave to pass through the barrier at a reduced force causing the slower water to release sediment behind the barriers. Further by redirecting and dissipating the full force of waves, the '132 publication teaches that additional damage can be prevented.
Many of the known artificial reefs used as submerged breakwaters to protect against beach erosion comprise structure that is difficult and costly to fabricate, transport and install. For example, in one application a series of prefabricated concrete modules are used, each of which weighs as much as 20 tons. This massive structure not only contributes to the cost but also requires significant amounts of labor in the production as well as the installation of such modules in the submerged operational environment on the ocean floor. Bulky cumbersome objects of this nature are inherently difficult to handle and transport as well as maintain due to the magnitude of their weight. These problems become even more pronounced in view of the undersea water currents usually prevalent in the offshore environs in which breakwaters are installed and maintained.
The present invention is needed to provide a unique modular sea wall system that provides for simpler transportation, delivery, and installation. The present invention is also needed to provide a more compact system that can be efficiently deployed.
The modular sea wall provides a sea wall constructed from two different blocking bodies: a front blocking body and a rear blocking body. The front blocking body is located seaward and the rear blocking body is located shoreward. The front blocking body provides a front lip that starts at the lowest surface of the front blocking body. The front blocking body curves upward to the uppermost surface of the front blocking body.
The front blocking body attaches to the rear blocking body at the top of the curve. The front blocking body provides an attachment aperture, such as a groove. The rear blocking body provide an attachment tongue that inserts into the attachment aperture of the front blocking body. The attachment of the attachment tongue at the attachment aperture secures the front blocking body with the rear blocking body.
The modular sea wall system provides different types of the rear attachment bodies. One embodiment of the attachment body provides a rear attachment body that has a curve that curves downwards from the attachment point to the rear end of the rear attachment body. Another embodiment of the attachment body provides a vertical wall that extends downward.
It is an object of the present invention to provide a modular sea wall.
It is also an object of the present invention to reduce the energy of waves against the shore.
It is also an object of the present invention to reduce erosion of the shore by waves.
It is also an object of the present invention to provide a bulkhead in the water.
It is also an object of the present invention to provide a modular system that reduces the costs of manufacturing the sea wall.
It is also an object of the present invention to simplify transportation and delivery of the sea wall.
It is also an object of the present invention to simplify the installation of the sea wall.
In addition to the features and advantages of the present invention, further advantages thereof will be apparent from the following description in conjunction with the appended drawings.
These and other objects of the invention will become more fully apparent as the description proceeds in the following specification and the attached drawings. These and other objects and advantages of the present invention, along with features of novelty appurtenant thereto, will appear or become apparent in the course of the following descriptive sections.
In the following drawings, which form a part of the specification and which are to be construed in conjunction therewith, and in which like reference numerals have been employed throughout wherever possible to indicate like parts in the various views:
As shown in
The front blocking body 102 provides a base that contacts the floor of the body of the water, such as the ocean floor. Support legs 114, 115 (shown in
The front lip 108 begins at a front surface of the front blocking body 102. The front blocking body curves upward to the top of the front blocking body to the attachment point at which the rear blocking body 104 attaches to the front blocking body 102.
The front blocking body 102 attaches to the rear blocking body 104 at the top of the curve at an attachment point. The rear blocking body 104 attaches to the front blocking body 102 via a fastener, a frictional connection, a tongue and grove connection, or other known attachments. The front blocking body provides an attachment aperture 116, such as a groove, located at the rear end 117 of the front blocking body 102. The rear blocking body 104 provides an attachment tongue 118 located at the front end 119 of the rear blocking body 104 that inserts into the attachment aperture 116 of the front blocking body 102. The attachment of the attachment tongue 118 at the attachment aperture 116 secures the front blocking body 102 with the rear blocking body 104.
Support leg 120 extends longitudinally forward from the attachment of the base of the rear blocking body 104 to the rear wall. Support tail 122 extends rearward from the attachment of the rear wall to the base of the rear blocking body 104. The support leg 120 and support tail 120 form the base to maintain the positioning of the rear blocking body 104 as the waves strike the front blocking body 102 and the rear blocking body 104.
Apertures 112 extend through the curve of the front blocking body 102. The apertures 112 allow the waves 106 to pass through the front blocking body 102. The rear blocking body 104 provides a vertical wall that has no apertures. The energy of the waves 106 dissipates as the waves pass through apertures 112 and as the waves pass over the front blocking body 102.
In one embodiment, the front blocking body 102 and the rear blocking body 104 require anchoring to the sea floor. Anchor apertures 110, 124 accept insertion of a pile to secure the front blocking body 102 and the rear blocking body 104 to the floor, such as the sea floor.
The rear blocking body 104 also supports and limits the movement of the front blocking body 102. The attachment of the front blocking body 102 to the rear blocking body 104 at the attachment aperture 116 and the attachment tongue 118 supports the top of the front blocking body 102. The support leg 120 and support tail 122 also support the rear blocking body 104 and the front blocking body 102.
For additional support of the rear blocking body 104, the rear blocking body 104 may be installed within the shoreline 128. The shoreline is excavated to bury the base, the support leg 120, and the support tail 122 within the shoreline. The top of the rear blocking body 104 extends above the floor.
The front blocking body 102 and rear blocking body 104 are constructed from a reinforced concrete. The concrete has a welded wire mesh 130, 138, 146, 148 embedded within the concrete of the front blocking body 102 and the rear blocking body 104. The welded wire mesh 130, 138, 146, 148 strengthens and shapes the front blocking body 102 and the rear blocking body 104.
L-bars 136, 142 within the concrete of the front blocking body 102 and rear blocking body 104 also support the vertical rise of the front blocking body 102 and rear blocking body 104. These L-bars 136, 142 are embedded within the concrete.
The base 113 extends from the front end of the front blocking body 102 to the end of the support legs 114. The base 113 is located vertically below the front wall 103. Base 123 of the rear blocking body 104 extends from the front of support leg 120 to the rear end of the support tail 122. Base 123 is located vertically below the attachment point. Anchor apertures 110, 124 extend vertically through the bases 113, 123.
As discussed above, support legs 114, 120 and support tail 122 support the front blocking body 102 and the rear blocking body 104. Anchor apertures 110, 124 enable the insertion of a pile to secure the front blocking body 102 and the rear blocking body 104 to the floor.
Referring to
The attachment aperture 116 at the rear end 117 of front blocking body 102 accepts attachment tongue 118 located at the front end 119 of the rear attachment body 104. Rear attachment body 104 with support leg 120 and support tail 122 position the front blocking body 102 and limit movement of the top and upper portion of the front blocking body 102.
Reinforcement bodies 132, 140, such as a rigid bar or number of rigid bars, are positioned around the anchor apertures 110, 124. The reinforcement bodies 132, 140 reinforce the anchor apertures 110, 124 to limit damage from the pile extending through the anchor apertures 110, 124.
The L-bar 142 and the wire mesh 146 support the vertical wall. Both the L-bar 142 and the wire mesh 146 extend upward through the vertical wall. L-bar 142 also extends forward from the vertical wall through the support leg 120.
Support legs 168, 170 extend forward from the rear end 174 under the curved rear wall 163. Support legs 168, 170 maintain the positioning of the rear blocking body 162. Support legs 168, 170 also support the top of the front blocking body 102 at the attachment point. Support legs 168, 170 function similarly to support legs 114, 115 of the front blocking body 102.
The rear blocking body 162 also provides apertures 164 through the rear curved wall 163. The apertures 164 function similarly to the apertures 112 through the front curved wall 103 of front blocking body 102. The apertures 112, 164 allow a portion of the water associated with the incoming waves to pass through the front curved wall 103 and the rear curved wall 163.
The extenders 154 shown in
L-bars 136, 178 located in the bases of the blocking bodies 102, 162 extend through the support legs 114, 115, 168, 170 and upward into the curved wall 103, 163. The L-bars 136, 178 provide additional support to the curved wall 103, 163 to maintain the structure of the blocking bodies 102, 162.
As discussed above, the incoming waves 106 pass through the apertures of the front curved wall 103 and the rear curved wall 163 to reduce the size of the outgoing wave 126. The front blocking body 102 and the rear blocking body 162 reduce the energy of the incoming waves 106 to dissipate the strength of the outgoing wave 126.
Anchor apertures 110, 166 accept a pile, such as a wooden pile, to secure the front blocking body 102 and rear blocking body 162 to the floor. The pile inserts into the anchor apertures 110, 166 into the floor to secure the front blocking body 102 and the rear blocking body 162.
The apertures 112, 164 may pass straight through curved walls such that the openings are parallel to the bases 113, 171. In another embodiment, the apertures 112, 164 are angled downward from sea ward to shoreward. For example, the aperture 112 angles downward towards the support legs 114. Apertures 164 angle downward towards the rear end 174. In one embodiment, the apertures 112, 164 angle downward at a 45 (forty five) degree angle in relation to the base. In one embodiment, the apertures 112, 164 angle downward between 30 (thirty) degrees and 60 (sixty) degrees in relation to the base.
Reinforcement bodies 132, 182, such as a rigid bar or number of rigid bars, are positioned around the anchor apertures 110, 166. The reinforcement bodies 132, 182 reinforce the anchor apertures 110, 166 to limit damage from the pile extending through the anchor apertures 110, 166.
The curved blocking bodies are shown as having the same curvature. In one embodiment, the curvature of the blocking bodies mirror each other. In another embodiment, the rear blocking body may form a vertical wall. In one embodiment, the vertical wall rises at a 90 degree angle in relation to the front blocking body.
The front blocking body and the rear blocking body have a curved wall providing apertures within the curved wall. In one embodiment, the configuration of the apertures in the front and rear blocking bodies align. In one embodiment, the vertical wall version of the real blocking body provides no apertures.
The blocking bodies are constructed from reinforced concrete poured into a form. The wire mesh and L-bars embedded within the concrete prior to the concrete curing. The wire mesh and L-bars strengthen the structure of the blocking bodies.
The front blocking body and rear blocking body have been described as contacting at only the attachment point located vertically above the bases. In another embodiment, the bases of the front blocking body and rear blocking may contact each other. In one embodiment, the bases of the front blocking body and the rear blocking body may be secured to each other via tongue and groove, fasteners, brackets, braces, joints, frictional engagements, and other attachments. In one embodiment, the support legs of the front blocking body attach to the support leg(s) of the rear blocking body. The bases and support legs may secure to each other if the rear wall is curved or vertical without curving.
From the foregoing, it will be seen that the present invention is one well adapted to obtain all the ends and objects herein set forth, together with other advantages which are inherent to the structure.
It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims.
As many possible embodiments may be made of the invention without departing from the scope thereof, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.
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3733831 | Sticker, Jr. | May 1973 | A |
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Number | Date | Country |
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2788798 | Jul 2000 | FR |