Patent Grant
11149402
The present disclosure relates generally to building elements for wall structures. More particularly, the present disclosure relates to a plurality of building elements that are operably coupled to each other to erect a retaining wall.
It is common practice to use prefabricated building elements and particular masonry works such as walls for retaining slopes and slopes along roads, motorways, railways or the like, or for retaining walls for creating drops between urban levels, especially by various types of prefabricated building elements. Such elements usually consist of concrete elements, placed one at the top of the other, and then filled with material such as earth, sand, gravel, and the like. Previous approaches have been developed to building elements for a retaining wall. One example of such an approach is described in U.S. Pat. No. 7,845,885, which is incorporated herein by reference in its entirety.
Currently, building elements require expensive molds and a minimum of one night to rest in the mold to allow time for the material to harden. In addition, the process used to generate a building element results in a building mold with limited variability. Thus, the resulting building element limits the structural variability of the retaining walls that can be constructed using the building element. There is a need in the pertinent art for building elements with increased variability in structure, thereby allowing for increased variability in the structures of retaining walls produced using the building elements.
There is a further need for building elements that provide increased stability and integrity compared to existing building elements. There is still a further need for building elements that provide for increased efficiency in the construction of wall structures.
The disclosure relates to the building of large and heavily loaded retaining walls by a set of prefabricated building elements. Optionally, the prefabricated building elements can include at least two different types of prefabricated building elements. During installation, the building elements can be operably engaged to build a retaining wall. To solidify the retaining wall, earth fillers such as dirt and the like can be used to support the wall.
Disclosed herein are building elements and systems and methods of using building elements to erect a retaining wall. In some aspects, the disclosed building elements can have a modular construction that simplifies production of the building elements and the retaining walls formed by the building elements. In these aspects, it is contemplated that the modular construction increases the ease in which the dimensions and characteristics of a building element can be selectively varied at a particular location within the wall construction to achieve a particular structural need. It is further contemplated that the modular construction can lower production costs, lower investment costs for molds, and ease transport of building elements.
In other aspects, a building element can be configured to be coupled to at least one other building element to form a retaining wall. The building element can comprise a face panel that defines a front surface and a rear surface positioned on an opposing side of the face panel from the front surface. The face panel can comprise a length dimension that is oriented along a first axis, a width/thickness dimension that is oriented along a second axis that is perpendicular to the first axis, and a height dimension that is oriented along a third axis that is perpendicular to the first and second axes. The building element can also comprise at least one beam member coupled to the rear surface of the face panel. The beam member can comprise an upper surface and a lower surface, and at least one surface of the upper surface and the lower surface can define an alignment void that is configured to receive a complementary portion of an adjacent building element. The beam member can also comprise a height dimension oriented along the third axis and a length dimension oriented along the second axis (such that the beam member is substantially perpendicular to the rear surface of the face panel and extends away from the rear surface of the face panel relative to the second axis).
Optionally, in various aspects, the building elements can be engaged to one another using at least one alignment post. The alignment post can comprise a stem and a cap. The stem can have a longitudinal axis and a length dimension along the longitudinal axis. In use, it is contemplated that the longitudinal axis of the stem can be parallel or substantially parallel to the third axis disclosed herein. The cap can comprise a top surface and a bottom surface, wherein the top surface comprises a first cross sectional area and the bottom surface comprises a second cross sectional area. The stem can be coupled to the cap through the bottom surface. In exemplary aspects, a first portion of the stem can be embedded within the cap, with a second portion of the stem extending downwardly and away from the bottom surface.
In other aspects, a plurality of building elements as disclosed herein can be operably engaged to erect a retaining wall system. The retaining wall system can comprise a plurality of building elements, wherein each building element can comprise a face panel and at least one beam member. The face panel can comprise a front surface and a rear surface positioned on an opposite side of the face panel from the front surface. At least one beam member can be coupled to the rear surface of the face panel. The beam member can comprise an upper surface and a lower surface, and at least one surface of the upper surface and lower surface can define an alignment void. The retaining wall system can further comprise an alignment post, and at least a portion of a stem of the alignment post can be configured for receipt within an alignment void of a first building element. Depending upon the orientation of the alignment post, the stem of the alignment post can be received within an alignment void that extends upwardly from the lower surface of the beam member or an alignment void that extends downwardly from the upper surface of the beam member, and a cap portion of the alignment post can be configured to extend either (a) above the upper surface or (b) below the lower surface. A second building element can define an alignment void that is configured to receive the cap of the alignment post when beam members of the first and second building elements are positioned in vertical alignment with one another.
Also disclosed, in further aspects, is a building element for forming a portion of a retaining wall, the building element comprising: a face panel comprising a top surface, a bottom surface, a front surface, and a rear surface positioned on an opposing side of the face panel from the front surface, wherein the face panel comprises a length dimension oriented along a first axis, a width dimension oriented along a second axis that is perpendicular to the first axis, and a height dimension oriented along a third axis that is perpendicular to the first and second axes; and a beam member coupled to the rear surface of the face panel, the beam member comprising a main body and first and second foot portions, the main body having an upper surface and first and second side surfaces that are substantially parallel to the second axis, wherein the first and second foot portions project, respectively, from the first and second side surfaces relative to the first axis, and wherein the first and second foot portions have respective lower surfaces that are substantially co-planar with the bottom surface of the face panel and respective upper surfaces that are positioned between the bottom and top surfaces of the face panel relative to the third axis, wherein the beam member has a distal end portion spaced from the front panel relative to the second axis, wherein the distal end portion comprises first and second projections that project, respectively, from the first and second side surfaces of the main body of the beam member, and wherein the first and second projections cooperate with respective portions of the first and second foot portions, the first and second side surfaces of the main body, and the rear surface of the face panel to define first and second receiving spaces on opposing sides of the beam member. Systems and methods of using and making the disclosed building element are also disclosed.
Further disclosed, in other aspects, is building element for forming a portion of a retaining wall, the building element comprising: a panel comprising a top surface, a bottom surface, a front surface, and a rear surface positioned on an opposing side of the face panel from the front surface, wherein the face panel comprises a length dimension oriented along a first axis, a width dimension oriented along a second axis that is perpendicular to the first axis, and a height dimension oriented along a third axis that is perpendicular to the first and second axes, wherein the panel has opposed first and second side surfaces extending between the front surface and the rear surface, wherein the panel comprises: a plurality of mortar beds defined within the panel, wherein the plurality of mortar beds are spaced apart relative to the first axis; a reinforcing mesh embedded within the panel; and a plurality of projections extending upwardly from the top surface and a plurality of receptacles defined within the bottom surface, wherein the receptacles are configured to receive the projections of a second building element. Systems and methods of using and making the disclosed building element are also disclosed.
Additional advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The advantages of the invention will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
These and other features of the disclosure will become more apparent in the detailed description in which reference is made to the appended drawings wherein:
The present invention can be understood more readily by reference to the following detailed description, examples, drawings, and claims, and their previous and following description. However, before the present devices, systems, and/or methods are disclosed and described, it is to be understood that this invention is not limited to the specific devices, systems, and/or methods disclosed unless otherwise specified, as such can, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting.
The following description of the invention is provided as an enabling teaching of the invention in its best, currently known embodiment. To this end, those skilled in the relevant art will recognize and appreciate that many changes can be made to the various aspects of the invention described herein, while still obtaining the beneficial results of the present invention. It will also be apparent that some of the desired benefits of the present invention can be obtained by selecting some of the features of the present invention without utilizing other features. Accordingly, those who work in the art will recognize that many modifications and adaptations to the present invention are possible and can even be desirable in certain circumstances and are a part of the present invention. Thus, the following description is provided as illustrative of the principles of the present invention and not in limitation thereof.
As used throughout, the singular forms “a,” “an” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a beam member” can include two or more such beam members unless the context indicates otherwise.
Ranges can be expressed herein as from “about” one particular value, and/or to “about” another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about,” it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
As used herein, the terms “optional” or “optionally” mean that the subsequently described event or circumstance may or may not occur, and that the description includes instances where said event or circumstance occurs and instances where it does not.
The word “or” as used herein means any one member of a particular list and also includes any combination of members of that list.
The word “substantially” as used herein can be used to define an angular tolerance of +/−15 degrees with respect to a disclosed (e.g., desired) angular relationship between two geometric entities. For example, “substantially vertical” can indicate that a reference surface or body is oriented vertically or within +/−15 degrees of absolute vertical alignment. Similarly, “substantially collinear” can indicate that two bodies can are collinear or positioned within an alignment divergence of +/−15 degrees of a collinear orientation (with the second body having an angular orientation relative to the first body that is less than or equal to 15 degrees and greater than or equal to −15 degrees).
In the following description, the orientation of the components of the disclosed building elements, retaining walls, and wall systems can be described with reference to a series of axes, including a first axis 114, a second axis 116 that is perpendicular to the first axis, and a third axis 118 that is perpendicular to the first and second axes. A primary plane can be defined by and contain the first axis and the second axis. A secondary plane can be defined by and contain the second axis and the third axis. A tertiary plane can defined by and contain the first axis and the third axis.
In various aspects, described herein with reference to
As depicted in
Although generally described herein as having a flat, rectangular construction, it is contemplated that at least a portion of the face panel 102 can have a radius of curvature that defines an arcuate profile (e.g., a convex or concave profile). For example, the face panel can bow with respect to an arcuate path determined by the associated radius.
In another optional configuration, and as shown in
In use, it is contemplated that the projections 120 and notches or slots 112A can be used as engagement features to further stabilize the face panel 102. For example, engaging the face panels 102 of respective panels during retaining wall construction can reduce movement of the face panels along the second axis 116. Optionally, it is contemplated that the projections 120 can be oriented perpendicularly or substantially perpendicularly to the first plane (and extend parallel or substantially parallel relative to the third axis 118). In a further aspect, a portion of the top or bottom surface of the face panel can be coplanar of the first plane comprising the first axis 114 and the second axis 116. Optionally, in exemplary aspects, and as shown in
As discussed earlier, the building element 100 can comprise a beam member 104, which can comprise a length dimension oriented along the second axis 116, a width dimension oriented along the first axis 114, and a height dimension oriented along the third axis 118. In exemplary aspects, the beam member 104 can comprise a brace section 106 that is mechanically coupled or secured to the rear surface 102B of the face panel 102. Optionally, it is contemplated that at least a portion of the beam member can be integrally formed with the face panel 102. In further aspects, the beam member 104 can comprise a back section 108 that has a length dimension along the first axis 114 such that it is perpendicular or substantially perpendicular to the brace section 106. Optionally, it is contemplated that the back section 108 can be integrally formed with a rear portion of the brace section 106. Alternatively, it is contemplated that the brace section 106 and the back section 108 can be formed separately and mechanically coupled or attached.
Optionally, as shown in
As depicted in
Referring to
In an aspect, the beam member 104 can have a length dimension ranging from about 3 ft. to about 14 ft., from about 4 ft. to about 12 ft., or from about 5 ft. to about 10 ft. Optionally, the beam member can have a length dimension of about 8 ft. In an aspect, the beam member 104 can have a height dimension ranging from about 3 ft. to about 9 ft., from about 4 ft. to about 8 ft., or from about 5 ft. to about 7 ft. Optionally, the beam member 104 can have a height dimension of about 6 ft. In a further aspect, the beam member 104 can have a width dimension ranging from about 3 in. to about 9 in., from about 4 in to about 8 in., or from about 5 in. to about 7 in. Optionally, the beam member 104 can have a width of about 6 in.
In various aspects, and with reference to
In exemplary aspects, it is contemplated that the reinforcement wings of each pair of reinforcement wings can be symmetrical relative to the beam 104. However, in other exemplary aspects and as shown in
Optionally, each reinforcement wing can have a triangular shape; however, other geometric shapes are possible. For example, as shown in
Exemplary Building Element Dimensions
In an aspect, the face panel 102 can have a length dimension ranging from about 26 ft. to about 18 ft., from about 24 ft. to about 20 ft., or from about 23 ft. to about 21 ft. Optionally, the face panel can have a length dimension of about 22 ft. In an aspect, the face panel can have a height dimension ranging from about 9 ft. to about 3 ft., from about 8 ft. to about 4 ft., or from about 7 ft. to about 5 ft. Optionally, the face panel can have a height dimension of about 6 ft. In a further aspect, the face panel can have a width dimension ranging from about 9 in. to about 3 in., from about 8 in. to about 4 in. or from about 7 in. to about 5 in. Optionally, the face panel can have a width of about 6 in. In a further aspect, the face panel can have a surface area defined by the length and height dimension ranging from about 235 sq. ft to about 54 sq. ft, from about 192 sq. ft to about 80 sq. ft, or from about 161 sq. ft to about 105 sq. ft. Optionally, the face panel 102 can have a surface area of about 132 sq. ft. It is further contemplated that the size of the face panel in this disclosure can be about 3.3 to about 16 times larger than traditional building elements where the respective panels range from 8 sq. ft. to 40 sq. ft. It is also further contemplated that the size of the disclosed building elements 100A-C and 200 can increase the efficiency in building a retaining wall, by allowing for quicker wall construction and a reduction in the number of wall components needed to complete a wall assembly. The size of the building elements can also increase the structural integrity of a wall 300 as compared to traditional building elements.
Building Elements Having Beam Members with Detachable Brace Portions
In exemplary aspects, and with reference to
In erecting a retaining wall, it is contemplated that the modularity provided by the detachable portions of the brace section can provide increased variability in the length dimension of the beam member 104 and provide a builder with additional flexibility in building element configurations to account for variations in the earth. In exemplary aspects, as shown in
Building Elements Having Beam Members that Define Horizontal Apertures
In another aspect, as depicted in
As shown in
Extension Elements
As shown in
In exemplary aspects, it is contemplated that the extension beam elements 204 can define apertures 210 that function in the same way as, and are similarly dimensioned to, the apertures 124 of the beam members 104 of building element 100B.
Alignment Posts
In a further aspect, the cap 140 can be shaped like a frustum having a top surface 144 and a bottom surface 146. The stem 142 can comprise a stem axis 148 oriented along a length dimension L of the stem 142. In another aspect, the stem axis 148 can be perpendicular or substantially perpendicular to a portion of the bottom surface 146 of the cap 142. The bottom surface 146 of the cap 140 can abut the top surface of the beam. In a further aspect, the portion of the stem extending downardly from the bottom surface of the cap 140 can have a length L ranging from about 3 in. to about 10 in., from about 4 in. to about 8 in. or from about 5 in. to about 7 in. Optionally, the length (L) of the exposed stem portion can be about 5 in. In a further aspect, the width of the stem 142 can range from about 1 in. to about 3 in., from about 1.25 in. to about 2.75 in. or from about 1.5 in. to about 2.5 in. Optionally, the width of the stem can be 2.5 in. In a further aspect, the height H of the cap 140 can range from about 1.75 in. to about 3.25 in., from about 2.0 in. to about 3.0 in. or from about 2.25 in. to about 2.75 in. Optionally, the height of the cap can be about 2.5 in. In a further aspect, the width (outer diameter) of the base 146 of the cap 140 can range from about 1.75 in. to about 3.25 in., from about 2.0 in. to about 3.0 in. or from about 2.25 in. to about 2.75 in. Optionally, the width of the base of the cap can be about 2.8 in.
Optionally, when the alignment post 122 is engaged to the alignment void, there can be a clearance space of 0.25 in. between an inner surface 102E that defines the alignment void 112 and the outer surface of the cap 140.
As shown in
In an alternative aspect, the stem 140 can comprise multiple materials. For example, an outer layer that circumscribes the stem axis 148 can comprise a plastic material such as polyethylene. An inner material for the stem 148 can be a metal bar that serves as a reinforcement of the plastic outer layer.
Securing Rods
Retaining Wall Systems
As shown in
As shown in
An additional aspect adding to the versatility of building elements 100A-E is that they can be produced from a single mold. During the casting of a building element, a manufacturer can transition between respective building elements by adjusting the internal molding structure (e.g., by filling in receptacles or emptying receptacles to modify the shape to be created by the mold). The adjustments to the internal molding structure allow alternate components of a building element to be formed with a differing shape or orientation.
Although generally described herein as having a substantially vertical orientation, it is contemplated that the retaining walls produced as disclosed herein can have any desired orientation relative to the a horizontal plane, including for example and without limitation, a wall batter producing an angular orientation ranging from about 70 degrees to about 90 degrees relative to the horizontal plane.
Securing Devices
Spacers
In an alternative aspect, as depicted in
It is contemplated that the spacer 160 can work with any combination of building elements disclosed herein.
Joint Stiffeners
In an aspect of the retaining wall, a joint 163 between face panels 102 can be strengthened using a joint stiffener 164 as depicted in
Building Elements Having Fill Receiving Spaces
Disclosed herein with reference to
In additional aspects, the building element 400 can comprise a beam member 420 coupled to (e.g., secured to or integrally formed with) the rear surface 418 of the face panel 410. In these aspects, the beam member 420 can comprise a main body 422 and first and second foot portions 424, 426. In some aspects, the main body 422 can have an upper surface 428 and first and second side surfaces 430, 432 that are parallel or substantially parallel to the second axis 404. In further aspects, the first and second foot portions 424, 426 can project, respectively, from the first and second side surfaces 430, 432 relative to the first axis 402. In these aspects, the first and second foot portions 424, 426 can have respective lower surfaces 434 that are co-planar or substantially co-planar with the bottom surface 414 of the face panel 410 and respective upper surfaces 436 that are positioned between the bottom and top surfaces of the face panel relative to the third axis 406.
Optionally, the beam member 420 can be integrally formed with the face panel 410 as a monolithic structure.
In additional aspects, the beam member 420 can have a distal end portion 450 (e.g., a vertical pillar) spaced from the front panel 410 relative to the second axis 404. In these aspects, the distal end portion 450 can comprise first and second projections 452, 454 that project, respectively, from the first and second side surfaces 430, 432 of the main body 422 of the beam member 420. As shown in the Figures, the first and second projections 452, 454 can cooperate with respective portions of the first and second foot portions 424, 426, the first and second side surfaces 430, 432 of the main body 422, and the rear surface 418 of the face panel 410 to define first and second receiving spaces 460, 462 on opposing sides of the beam member. As further disclosed herein, the receiving spaces 460, 462 can be configured to receive and at least partially enclose fill material. It is further contemplated that the structure of the disclosed building element 400 and, in particular, the structure of the disclosed beam member 420, can increase the internal arching effect of the fill weight inside the receiving spaces, thereby wedging and holding the fill weight in place.
As depicted in the Figures, the distal end portion 450 of the beam member 420 can be widened to form a vertical pillar along the back of the building element for bracing against lateral earth pressures (like a soldier pile) to enhance the arching between such pillars, thereby increasing lateral earth pressure transfer directly from the backfill onto the building element (wall structure).
As further depicted in the Figures, the inner surfaces of the first and second projections 452, 454 of the distal end portion 450 (pillar) close the back of the inside backfill of the building element and thereby enhance the arching effect of internal fill material silo pressures directly onto the building element, which serves to enhance the gravity wall effect (a gravity wall resists against lateral earth pressures by the heavy weight of the wall (which is 20% concrete unit weight and 80% inside cell backfill earth weight).
In exemplary aspects, the distal end portion 450 of the beam member 420 can have a width that is significantly greater than is present in conventional retaining wall structures. For example, in some aspects, it is contemplated that the width of the distal end portion 450 can range from about 2.5 feet to about 5 feet and, optionally, be at least 3 feet. It is contemplated that this increased width can increase the internal arching effect of the fill weight inside the receiving spaces and against the distal end portion, thereby increasing the stability of the building element. In further exemplary aspects, it is contemplated that the face panel can have a width ranging from about 6 feet to about 12 feet and, optionally, be at least 7 feet or at least 8 feet. In these aspects, it is contemplated that an increased width of the face panel can further increase the arching effect of the cell fill along the front panel.
In further exemplary aspects, the face panel 410 can have opposed first and second side edges 470, 472 that are spaced apart relative to the first axis 402. In these aspects, the front surface 416 of the face panel 410 can comprise first and second portions 474, 476 that extend, respectively, from the first and second side edges 470, 472 to a center point 478 that is intersected by the vertical reference plane 408. It is contemplated that the first and second portions 474, 476 of the front surface 416 can be angularly oriented relative to each other. Optionally, the first and second portions 474, 476 of the front surface together define a V-shape.
Optionally, the face panel 410 can have a variable width relative to the second axis 404. In exemplary aspects, the face panel can have a maximum width within a vertical reference plane 408 that bisects the length dimension of the face panel 410. It is contemplated that this panel structure (with a maximum thickness at the center) can provide optimal moment resistance against cell-fill earth pressures at the center of the panel. Optionally, in these aspects, the face panel can have a minimum width at the opposing side edges 470, 472, where there is no moment.
In addition to providing the disclosed performance advantage, it is contemplated that the variation in panel thickness and the V-shaped profile of the front surface 416 of the face panel 410 can provide a desired front-face appearance and visual effect, which can optionally produce variation in the appearance of shadows during the day.
In exemplary aspects, as the beam member 420 can define at least one pin hole 442 (optionally, a plurality of pin holes, such as two pin holes) that permit engagement between the building element and a pin and/or lifting cable of a crane or other handling/lifting apparatus. Such pin holes can be formed during the manufacturing process. In use, the pin holes can permit fast and safe installation of the building elements.
As one of skill in the art can appreciate, in some exemplary aspects, the disclosed building elements can be provided as one-piece “cribwall” units that can be cast with a large front panel and a beam member that forms a partially closed backfill cell and is closed at the bottom for “wedging in” the fill such that the fill cannot simply drop out. This “wedging in” of the fill occurs (in part) due to the arching effect (both horizontal and vertical) along the foundations of the face panel and the beam member, including the enlarged distal end portion (pillar), with the fill being wedged between the face panel and the widened portion of the pillar. In use, the fill cannot move out of the cell and must function together with the wall structure to form a cribwall (which is a concrete container structure containing a maximum amount of fill material for creating the weight needed to resist the enormous lateral earth pressures). In use, it is contemplated that such building elements can be easy to fill and compact, while providing easy access (from the back of the building element) to large excavators, vibratory rollers, and compactors, which perform far better than hand tools. Thus, in use, it is contemplated that the disclosed building elements can reduce or eliminate the need for expensive hand-labor work, which is typically unreliable and inefficient.
Optionally, as shown in
In use, it is contemplated that the elbows can be configured to provide horizontal stiffening of the beam member 420 and/or the distal end portion 450 of the beam member. This horizontal stiffening is particularly beneficial for longer building elements, which can have a length ranging anywhere from about 5 feet up to about 34 feet. Such stiffening of longer building elements can greatly help with manufacturing, loading, and transporting of the building elements.
It is further contemplated that the elbows can be configured to initiate and positively support and create substantial arching of the fill inside the building elements to function as a real container for the fill. It is contemplated that arches inside the building elements can more effectively transfer the weight of the fill onto the building elements to greatly help stabilize the gravity wall effect.
Additionally, with respect to the transverse elbows 455 along the back of the building elements, these transverse elbows can greatly encourage the support of backfill material behind the wall by increasing the vertical fill weight effect to stabilize the wall against overturning. These transverse elbows can affect the backfill in a number of ways. In particular, the backfill cannot simply slide down along the pillars during compaction; rather, the backfill will at least partially “sit” or rest on the pillar, thereby stabilizing the retaining structure against overturning. Thus, the transverse elbows affect the way the backfill forces are distributed within the area directly behind the wall structure. Therefore, the transverse elbows 455 enlarge and affect the fill material beyond the actual back of the wall structure such that the retaining wall structural “effect” reaches beyond the actual wall footprint. In use, the transverse elbows 455 can increase the vertical loads onto the pillars from outside the wall “footprint.”
Additionally, or alternatively, as shown in
Overall, the disclosed elbows 435, 455 and the base projection 465 effectively change and challenge the internal earth pressures to act differently and enhance the wall stability with minimal additional cost.
In exemplary aspects, it is contemplated that the elbows can be formed using the molding process described herein. In these aspects, it is contemplated that the elbows can optionally be formed integrally with the remainder of the beam member as a monolithic structure.
Optionally, in further aspects, and as shown in
In another aspect, the upper surfaces 436 of the first and second foot portions 424, 426 of the beam member 420 can slope downwardly from the respective side surfaces 430, 432 of the main body 422 of the beam member.
In still another aspect, the front surface 416 of the face panel 410 can comprise an upper portion 475 and a base portion 477 that extends between the upper portion and the bottom surface 414 of the face panel relative to the third axis 406. In this aspect, the base portion 477 can be angularly oriented to extend outwardly relative to the upper portion 475 of the front surface 416 of the face panel 410.
Optionally, in exemplary aspects, the base portion 477 of the panel 410 can have an outwardly sloped profile with an increase thickness than the upper portion 475 of the panel. Optionally, the panel can have a continuously sloped profile, with the base portion corresponding to the thickest sections of the panel. Alternatively, the base portion 477 can project from the upper portion 475 and define a visible “nose.” Some purposes of such a “nose” along the bottom of the panel include creating a shade along the bottom joint that covers up small imperfections of an underlying panel (resulting from manufacturing or handling) and to emphasize the horizontal joint visually for an additional architectural effect.
Optionally, in further aspects, the face panel 410 can comprise a reinforcing material 500 (e.g., at least one steel bar, a steel plate, or a wire mesh) that is embedded within the face panel and oriented parallel or substantially parallel to the first axis 402. In these aspects, it is contemplated that the parallel or substantially parallel orientation of the rear surface 418 of the face panel 410 can allow for positioning of the reinforcement material 500 without the need for bending, thereby maximizing efficiency in the assembly process.
In exemplary aspects, the reinforcement material 500 can be provided as one or more wire mesh sections 405, as shown in
Optionally, in still further aspects, the face panel 410 can comprise a plurality of steel bars 510 that are embedded within the face panel. Optionally, in exemplary aspects, and as shown in
In further aspects, at least one surface of the top surface 412 and the bottom surface 414 can define an alignment void 495 configured to receive a portion of an adjacent building element during formation of the retaining wall. Optionally, the top surfaces of the front panel and or the beam member can comprise alignment posts 700 (as further described herein) that are configured to permit self-alignment of building elements during installation, by matching the alignment posts with corresponding alignment voids along the bottom of the building elements.
Optionally, in still further aspects, the front surface of the face panel 410 can have a surface area of greater than 40 square feet, such as, for example and without limitation, greater than or equal to 41 square feet, greater than or equal to 42 square feet, greater than or equal to 43 square feet, greater than or equal to 44 square feet, greater than or equal to 45 square feet, or greater than or equal to 50 square feet.
In exemplary aspects, a retaining wall system 600 can comprise a plurality of building elements 400. Optionally, in these aspects, the beam member 420 of each building element 400 can have a length relative to the second axis 404, and at least one beam member can have a length that is less than the length of at least one other beam member. In additional aspects, the plurality of building elements 400 can be arranged in a plurality of columns 600 of vertically secured beam members. In these aspects, a bottom beam member of each column can have a length that is greater than the lengths of the beam members of any other beam member within the column. In further aspects, each column of the plurality of columns can comprise at least three building elements, and the length of the beam member of each building element within each column can be different than the length of each other beam member within the column. It is further contemplated that the building elements can be arranged such that the length of the beam member of each sequential building element within the column decreases moving upwardly relative to the third axis. Optionally, each front panel can have a V-shape that cooperates with the front panels of surrounding building elements to define a corrugated appearance of the retaining wall. Optionally, the columns of building elements do not contact one another.
Optionally, in exemplary aspects, it is contemplated that an entire retaining wall system can be built from the same types of building elements 400. For example, it is contemplated that each building element of the retaining wall system can have the same front face profile. However, it is contemplated that the length of the beam member of each building element can vary depending upon the level (within the system) in which the building element is positioned. For example, as further described herein, building elements at the base of the system can have a greater length than building elements toward the top of the system. Exemplary sections of a retaining wall system can have a height of about 30 feet (or about 10 m).
In exemplary aspects, it is contemplated that the retaining wall system 600 can comprise a plurality of stacked groups (pillars) of building elements 400, with each pillar being independent of any other pillar. Thus, on soft ground, each wall pillar can settle independently of any neighboring pillar. Additionally, it is contemplated that it can be impossible to damage laterally spaced panels if the gap to the next pillar is wide enough. During a severe earthquake, it is contemplated that each pillar of wall units must survive from severe horizontal and even vertical shaking; however, because each pillar is independent as disclosed herein, the pillars do not touch each other and can remain intact. The open gaps between the separate pillars can require the use of small concrete slabs loosely set behind the gaps to avoid loss of fill. It is contemplated that occasional water leaking can be acceptable, yet the concrete slabs can avoid erosion and material loss, thereby protecting against damage.
Optionally, in further exemplary aspects and with reference to
In use, it is contemplated that self-alignment keys (e.g., the alignment posts disclosed herein) can ensure the perfect alignment of precast units onto the wall face. As discussed generally above, the alignment posts 700 can comprise a vertical steel bar and a mushroom-like head on top. It is further contemplated that the alignment posts can be fabricated upside down in cups and inserted into the fresh concrete of the precast units, preferably directly after concrete work is complete. It is contemplated that the self-aligning posts can provide exact guidance for the units to be installed on top of the other while avoiding the need for special molding on the units, which is difficult to adjust precisely. Instead of mounting molds every time before casting, the only required finishing of concrete is the smoothing of the concrete surface with a tool. Then, the alignment posts can be inserted at the precise location.
As further explained herein, the disclosed building elements are capable of providing a number of advantages or improvements in comparison to existing retaining wall systems. Such advantages or improvements can include one or more of the following features.
The retaining walls are easy to cast and to transport by fitting onto a truck bed without creating any oversize issues for the trucker or for other drivers.
The main body portions of the beam members can include horizontal holes for lifting and transporting the units onto a truck and from the truck to an installation. Thus, the retaining walls are easy to pick up and handle using pins through horizontal holes in the stem (beam)—no need to insert costly tools which might be lost.
The retaining walls are easy to install units with self-aligning keys that direct the unit for precise setting automatically.
The pillars (distal end portions of the beam members) along the back enhance horizontal backfill arching for maximum loading of the concrete structure by vertical earth pressure components to help resisting the wall against overturning earth pressure forces.
The pronounced bottom widening of the beam members further enhances the vertical arching of the earth fill for maximum weight load onto the structure to further increase the wall resistance against overturning and sliding.
The wide front panels provide an ample distance between stems (beams) of adjacent building elements for easy filling.
The wide spacing between pillars (the distal end portions of the beam members) allows for extra-wide vibratory roller compaction from the back, which is known to be more effective and reliable than small compactors.
The front face of the panels shows a vertical centerline edge required by the earth fill load resulting in a peak moment in the front panels. This peculiar structural function can also achieve a characteristic architectural effect along the front panels.
The vertical centerline edge of the front face further creates and adds an ever-changing sun and shade pattern every day.
As further discussed above, the front panels can further show a distinct ‘nose’ like ending along the bottom line for directing rain water running down the face away from the joint onto the next lower panel. This nose can also prevent vertical stains as are frequently seen on vertical walls. The nose can further hide or provide shade for a horizontal joint which conceals local irregularities and possible imperfections. In use, the nose can guide rain water to drip off outside of the front panel, and thereby avoid formation of ugly vertical stripes from smoke and dust washed down the front face. It is contemplated that the nose can cantilever out of the front wall face, causing a distinct shadow falling over the horizontal joint. This shadow can automatically cover small imperfections of units caused by loading, transport, or installation handling. In use, this shadow can create a special aesthetic feature that emphasizes the horizontal wall joints.
In combination, the features of the disclosed building elements maximize efficiency in unit production, transport, and installation. This maximum efficiency goes in line with fabrication features that allow up to three units produced per day from each mold for high capacity production on big projects. The systematic product streamlining eases installation by self-aligning keys resulting in high precision setting. The wide access to equipment from behind easily boosts filling and compaction by providing room for efficient wide vibratory rollers.
Methods of Making the Building Elements
In exemplary aspects, and with reference to
The vertical front edge and the horizontal wide ‘nose’ along the bottom line provide architectural features based on technical functions and a vivid change of shades of the otherwise overly flat front face.
Enlarged Panels
Disclosed herein with reference to
Optionally, the length dimension of the panel can be at least 11 feet, at least 12 feet, at least 13 feet, at least 14 feet, at least 15 feet, at least 16 feet, at least 17 feet, at least 18 feet, at least 19 feet, or at least 20 feet.
Optionally, the height dimension of the panel can be at least 5.5 feet, at least six feet, at least 7 feet, at least 8 feet, at least 9 feet, or at least 10 feet.
In use, it is contemplated that the large panels can allow for the use of a significant reduction in the number of struts required to assemble a wall structure, thereby opening the construction site for big excavators for efficient filling and giving access to big vibratory rollers to eliminate hand compactors, hand-labor, and inefficient “gardener work.” As further disclosed herein, it is contemplated that the large panels can comprise alignment posts and corresponding receptacles or openings to permit precise setting of the panels in a desired orientation and location.
Enlarged struts can be designed to hold the enlarged panels disclosed herein. In particular, the strut length must fit the panel size and the topography to anchor the bottom into firm ground. Standard practice is to use helix-type ground anchors screwed in with a small tractor gear connection, and unscrew the ground anchor after use for the next application. In comparison, it is contemplated that the disclosed enlarged panels can require as few as two struts only, thereby speeding up installation by providing a larger work space and providing improved access for filling and compaction. In exemplary aspects, backfill with crushed rock at a minimum of 2 ft. for verticality can be used, without the need for compaction (it is self-compacting backfill). Self-aligning keys (e.g., alignment posts) as disclosed herein can be used along the top and joints.
In exemplary aspects, and with reference to
In further exemplary aspects, and with reference to
As shown in
In additional aspects, and with reference to
Optionally, the plurality of hooks 820 can comprise galvanized steel. In use, the hooks 820 can extend out of the back of the enlarged panel for connecting the support grid 830. A galvanized straight bar 825 can be placed onto the support grid next to the panel. The end of the support grid can be positioned over the steel bar, and the bar can be pushed down over and behind the hooks so that the support grid is firmly locked onto the hooks and secured to the frong panel. The support grid can then be stretched from the very end to avoid any slack. A small trench can be dug along and near the back end of the support grid. The support grid can then be stretched, and fill can be placed at the back end of the support grid to lock the support grid in place. Tension to the support grid can be added by placing additional fill along or within the small trench.
As shown in
In still further aspects, and with reference to
Reinforcement wings 840 along the back of the front panels can help to set the first base unit vertical on the leveling pad Wings along the back of panels provide for an easier start-up on the leveling pad to build stacks of wall elements. First, using separate molds, wings should be prepared for the back of the lowest panels in each stack. These wings should be set onto the panels ready for casting. The connecting reinforcement panels/materials should match with the panel positions. By casting wings separately, the enlarged panels can be cast face down without the need for complicated formwork. These base units can then be set onto widened leveling pads. Mortar beds and wooden wedges can be used to adjust the base units for proper verticality and line-up. In use, it is contemplated that reinforcement wings can be eliminated after a user becomes experienced with the particular setting and installation characteristics of the enlarged panels.
In exemplary aspects, a retaining wall system can comprise a plurality of building elements 800, wherein the plurality of building elements are arranged in a plurality of columns of vertically secured building elements. Optionally, the columns of building elements do not contact one another.
In one exemplary aspect, a first column of building elements comprises a first building element and a second building element, and the projections of the first building element are at least partially received within the receptacles of the second building element.
In a further exemplary aspect, the plurality of building elements can comprise a column of at least first and second vertically secured building elements. In this aspect, and with reference to
In exemplary aspects, the alignment assembly 900 can comprise steel or brass aligning screws along the back of the panels for fine tuning of verticality. Optionally, two round dowels can be inserted into holes drilled after one day of concrete curing. It is contemplated that the dowels can have a vertically oriented opening near the outside end. A threaded bar, for tying and adjusting verticality, can be inserted through the opening of the dowels. Nuts at the ends of the threaded bar can allow for adjustment of the relative positioning of the panels. Nuts at the inside of the threaded bar (between the dowels) allow for relative translation of the next panel.
Exemplary Aspects
In view of the described devices, systems, and methods and variations thereof, herein below are described certain more particularly described aspects of the invention. These particularly recited aspects should not however be interpreted to have any limiting effect on any different claims containing different or more general teachings described herein, or that the “particular” aspects are somehow limited in some way other than the inherent meanings of the language literally used therein.
Aspect 1: A building element for forming a portion of a retaining wall, the building element comprising: a face panel comprising a top surface, a bottom surface, a front surface, and a rear surface positioned on an opposing side of the face panel from the front surface, wherein the face panel comprises a length dimension oriented along a first axis, a width dimension oriented along a second axis that is perpendicular to the first axis, and a height dimension oriented along a third axis that is perpendicular to the first and second axes; and a beam member coupled to the rear surface of the face panel, the beam member comprising a main body and first and second foot portions, the main body having an upper surface and first and second side surfaces that are substantially parallel to the second axis, wherein the first and second foot portions project, respectively, from the first and second side surfaces relative to the first axis, and wherein the first and second foot portions have respective lower surfaces that are substantially co-planar with the bottom surface of the face panel and respective upper surfaces that are positioned between the bottom and top surfaces of the face panel relative to the third axis, wherein the beam member has a distal end portion spaced from the front panel relative to the second axis, wherein the distal end portion comprises first and second projections that project, respectively, from the first and second side surfaces of the main body of the beam member, and wherein the first and second projections cooperate with respective portions of the first and second foot portions, the first and second side surfaces of the main body, and the rear surface of the face panel to define first and second receiving spaces on opposing sides of the beam member.
Aspect 2: The building element of aspect 1, wherein the beam member is integrally formed with the face panel as a monolithic structure.
Aspect 3: The building element of aspect 1 or aspect 2, wherein the face panel has a variable width relative to the second axis, and wherein the face panel has a maximum width within a vertical reference plane that bisects the length dimension of the face panel.
Aspect 4: The building element of aspect 3, wherein the face panel has opposed first and second side edges that are spaced apart relative to the first axis, wherein the front surface of the face panel comprises first and second portions that extend, respectively, from the first and second side edges to a center point that is intersected by the vertical reference plane, and wherein the first and second portions of the front surface are angularly oriented relative to each other.
Aspect 5: The building element of aspect 4, wherein the first and second portions of the front surface together define a V-shape.
Aspect 6: The building element of aspect 4, wherein the beam member has a proximal end portion having first and second portions that extend, respectively, from the first and second side surfaces of the beam member to the rear surface of the front panel, and wherein each of the first and second portions of the proximal end portion extends at an obtuse angle relative to adjoining portions of the first and second side surfaces of the beam member.
Aspect 7: The building element of aspect 6, wherein the rear surface of the front panel comprises first and second end sections positioned on opposing sides of the proximal end portion of the beam member, wherein the first and second end sections of the rear surface of the front panel are substantially parallel to the first axis.
Aspect 8: The building element of aspect 1 or aspect 2, wherein the upper surfaces of the first and second foot portions of the beam member slope downwardly from the respective side surfaces of the main body of the beam member.
Aspect 9: The building element of aspect 1 or aspect 2, wherein the front surface of face panel comprises an upper portion and a base portion that extends between the upper portion and the bottom surface of the face panel relative to the third axis, wherein the base portion is angularly oriented to extend outwardly relative to the upper portion of the front surface of the face panel.
Aspect 10: The building element of aspect 1 or aspect 2, wherein the face panel comprises a reinforcing material that is embedded within the face panel and oriented substantially parallel to the first axis.
Aspect 11: The building element of aspect 1 or aspect 2, wherein the face panel comprises a plurality of steel bars that are embedded within the face panel.
Aspect 12: The building element of aspect 6, wherein the face panel comprises at least first and second steel bodies that are embedded within the face panel, wherein the first and second steel bodies have respective first and second ends, wherein the first ends of the first and second steel bodies are positioned proximate the center point of the center section of the rear surface, wherein the first steel body is oriented substantially parallel to the first portion of the center section of the rear surface of the face panel, and wherein the second steel body is oriented substantially parallel to the second portion of the center section of the rear surface of the face panel.
Aspect 13: The building element of aspect 1 or aspect 2, wherein at least one surface of the top surface and the bottom surface defines an alignment void configured to receive a portion of an adjacent building element during formation of the retaining wall.
Aspect 14: The building element of aspect 1 or aspect 2, wherein the front surface of the face panel has a surface area of greater than 40 square feet.
Aspect 15: A retaining wall system comprising: a plurality of building elements of any one of aspects 1-14, wherein the beam member of each building element has a length relative to the second axis, and wherein at least one beam member has a length that is less than the length of at least one other beam member.
Aspect 16: The system of aspect 15, wherein the plurality of building elements are arranged in a plurality of columns of vertically secured beam members, wherein a bottom beam member of each column has a length that is greater than the lengths of the beam members of any other beam member within the column.
Aspect 17: The system of aspect 16, wherein each column of the plurality of columns comprises at least three building elements, wherein the length of the beam member of each building element within each column is different than the length of each other beam member within the column, and wherein the building elements are arranged such that the length of the beam member of each sequential building element within the column decreases moving upwardly relative to the third axis.
Aspect 18: The system of aspect 16, wherein each front panel has a V-shape that cooperates with the front panels of surrounding building elements to define a corrugated appearance of the retaining wall.
Aspect 19: The system of aspect 16, wherein the columns of building elements do not contact one another.
Aspect 20: The system of aspect 16, further comprising an alignment post having a stem comprising first and second portions that cooperatively define an axial length dimension of the stem; and a cap comprising a top surface and a bottom surface, wherein the top surface comprises a first cross sectional area and the bottom surface comprises a second cross sectional area greater than the first cross sectional area, wherein the first portion of the stem is embedded within the cap, and wherein the second portion of the stem extends downwardly from the bottom surface of the cap, wherein the top surface of the front panel of a first building element of the plurality of building elements defines an alignment void that receives the second portion of the stem of the alignment post, and wherein the bottom surface of the front panel of a second building element of the plurality of building elements defines an alignment void that receives the cap of the alignment post, and wherein the first and second building elements cooperate to define at least a portion of a column of the retaining wall.
Aspect 21: A method of assembling a retaining wall using a system of any one of aspects 15-20.
Aspect 22: A method of molding a building element of any one of aspects 1-14.
Aspect 23: A building element for forming a portion of a retaining wall, the building element comprising: a panel comprising a top surface, a bottom surface, a front surface, and a rear surface positioned on an opposing side of the face panel from the front surface, wherein the face panel comprises a length dimension oriented along a first axis, a width dimension oriented along a second axis that is perpendicular to the first axis, and a height dimension oriented along a third axis that is perpendicular to the first and second axes, wherein the panel has opposed first and second side surfaces extending between the front surface and the rear surface, wherein the panel comprises: a plurality of mortar beds defined within the panel, wherein the plurality of mortar beds are spaced apart relative to the first axis; a reinforcing mesh embedded within the panel; and a plurality of projections extending upwardly from the top surface and a plurality of receptacles defined within the bottom surface, wherein the receptacles are configured to receive the projections of a second building element.
Aspect 24: The building element of aspect 23, wherein the length dimension of the panel is at least 11 feet.
Aspect 25: The building element of aspect 24, wherein the height dimension of the panel is at least six feet.
Aspect 26: The building element of aspect 23, further comprising: a plurality of hooks that are partially embedded within the panel and that partially extend rearwardly from the rear surface; and a support grid positioned in secure engagement with the plurality of hooks such that the support grid is substantially parallel to the rear surface of the panel.
Aspect 27: The building element of aspect 23, further comprising at least one reinforcement wing secured to the rear surface of the panel, wherein the at least one reinforcement wing extends outwardly from the rear surface of the panel relative to the second axis.
Aspect 28: A retaining wall system comprising: a plurality of building elements of any one of aspects 23-27, wherein the plurality of building elements are arranged in a plurality of columns of vertically secured building elements.
Aspect 29: The system of aspect 28, wherein the columns of building elements do not contact one another.
Aspect 30: The system of aspect 28, wherein a first column of building elements comprises a first building element and a second building element, wherein the projections of the first building element are at least partially received within the receptacles of the second building element.
Aspect 31: The system of aspect 23, wherein the plurality of building elements comprise a column of at least first and second vertically secured building elements, the system further comprising an alignment assembly having: a first transverse opening extending partially through the width dimension of the first building element; a second transverse opening extending partially through the width dimension of the second building element, wherein the second transverse opening is positioned in alignment with the first transverse opening relative to the third axis; first and second dowels received within the respective first and second transverse openings; and a threaded fastener that is threadingly coupled to the first and second dowels to permit selective adjustment of a distance or orientation between the first and second dowels relative to the third axis.
Aspect 32: A method of assembling a retaining wall using a system of any one of aspects 28-31.
Aspect 33: A method of forming a building element of any one of aspects 23-27.
Aspect 34: The building element of any one of aspects 1-14, further comprising at least one longitudinal elbow that projects outwardly from the main body of the beam member and extends between the face panel and the distal end portion of the beam member.
Aspect 35: The building element of any one of aspects 1-14 or aspect 34, further comprising at least one transverse elbow that projects outwardly from a rear surface of the distal end portion of the beam member.
Aspect 36: The method of aspect 32, wherein at least a first building element comprises: a plurality of hooks that are partially embedded within the panel and that partially extend rearwardly from the rear surface; and a support grid positioned in secure engagement with the plurality of hooks such that the support grid is substantially parallel to the rear surface of the panel, and wherein the method comprises backfilling the support grid with crushed rock.
Several embodiments of the invention have been disclosed in the foregoing specification. It is understood by those skilled in the art that many modifications and other embodiments of the invention will come to mind to which the invention pertains, having the benefit of the teaching presented in the foregoing description and associated drawings. It is thus understood that the invention is not limited to the specific embodiments disclosed hereinabove, and that many modifications and other embodiments are intended to be included within the scope of the appended claims. Moreover, although specific terms are employed herein, as well as in the claims which follow, they are used only in a generic and descriptive sense, and not for the purposes of limiting the described invention, nor the claims which follow.
This application claims priority to and the benefit of the filing date of U.S. Provisional Patent Application No. 62/577,451, filed on Oct. 26, 2017. This application is also a continuation-in-part of co-pending U.S. patent application Ser. No. 15/448,134, filed Mar. 2, 2017, which claims priority to and the benefit of the filing date of U.S. Provisional Patent Application No. 62/302,793, filed on Mar. 2, 2016. Each of the above-identified applications is incorporated herein by reference in its entirety.
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| Child | 16172001 | US |
