Prefabricated cavity differentiated filling and greening drainage assembled retaining wall

Abstract

This invention relates to the field of highway slope protection technology and discloses a prefabricated cavity differentiated filling greening and drainage prefabricated retaining wall, including a foundation pad and a retaining wall assembly. The retaining wall assembly is installed on the upper surface of the foundation pad and includes a prefabricated panel, a prefabricated support plate, a prefabricated joint reinforcement, a prefabricated side cover, and a prefabricated grate. The prefabricated panel is installed on the upper surface of the foundation pad, the prefabricated support plate is inserted into the inner wall of the first recess, the prefabricated joint reinforcement is inserted into the inner wall of the second recess, and the prefabricated grate is snapped between the two prefabricated panels on the front and rear sides and abuts against the upper surfaces of the prefabricated support plate and the prefabricated joint reinforcement. This device achieves efficient construction, stable structure, smooth drainage, and ecological greening through rapid foundation assembly, rapid assembly of the wall with dovetail tenon joints, and differentiated filling of the cavity in layers. It effectively solves the defects of traditional retaining walls, such as slow construction, poor drainage, and lack of greening, and meets the needs of efficient and environmentally friendly highway slope protection.

Description

Technical Field

[0001] This invention relates to the field of highway slope protection technology, and more specifically, to prefabricated cavity differentiated filling greening and drainage prefabricated retaining walls. Background Technology

[0002] Precast cavity differentiated filling greening and drainage prefabricated retaining wall is a prefabricated retaining structure used for slope protection and soil and water conservation. It is mainly used in road, water conservancy, municipal and other engineering fields to prevent slope collapse, while taking into account greening and drainage functions, and ensuring the stability of the engineering slope.

[0003] However, existing retaining wall technologies have many shortcomings, making it difficult to meet the requirements of high efficiency, environmental protection, and adaptability in engineering construction. Traditional retaining walls mostly adopt the cast-in-place reinforced concrete process, which requires segmented construction according to the process of tying steel bars, setting up formwork, and pouring concrete. This is greatly restricted by terrain, has a long construction period, and is inefficient. Moreover, on-site pouring generates a large amount of construction waste, polluting the environment and increasing construction costs. Prefabricated retaining walls, which have emerged in recent years, such as the technology disclosed in Chinese invention patent with authorization announcement number CN112252360A, still have significant shortcomings. They do not have a systematic drainage structure, making it difficult to meet the pore water pressure dissipation requirements in rainy areas of southern China. Therefore, it is urgent to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the above situation and to overcome the defects of the prior art, the present invention provides a prefabricated cavity differentiated filling green drainage assembled retaining wall, which aims to solve the problems in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a prefabricated cavity differentiated filling green drainage prefabricated retaining wall, comprising a foundation pad and a retaining wall assembly. The retaining wall assembly is installed on the upper surface of the foundation pad. The retaining wall assembly includes a prefabricated panel, a prefabricated support plate, prefabricated joint reinforcement, prefabricated side cover, and a prefabricated grate. A first recessed opening is provided on the upper surface of the foundation pad. The prefabricated panel is installed on the upper surface of the foundation pad. The prefabricated support plate is inserted into the inner wall of the first recessed opening. A second recessed opening is provided on the upper surface of the foundation pad. The prefabricated joint reinforcement is inserted into the inner wall of the second recessed opening. The prefabricated side cover is installed between the front and rear prefabricated panels. The prefabricated grate is engaged between the front and rear prefabricated panels and abuts against the upper surfaces of the prefabricated support plate and the prefabricated joint reinforcement.

[0006] Preferably, one end of the base pad has a first dovetail groove, and the other end of the base pad has a first dovetail locking block that matches the first dovetail groove, so that two adjacent base pads can be connected to each other.

[0007] Preferably, the base pad has a through hole on the front, a steel bar is inserted into the inner wall of the through hole, the steel bar is U-shaped, a groove is formed in the middle of the steel bar, a limit washer is engaged in the inner wall of the groove, and a nut is threaded onto the end of the steel bar after passing through the through hole.

[0008] Preferably, the outer surface of the base pad has an inner groove on the outside of the through hole, the limiting washer is engaged with the inner wall of the inner groove, and the nut is engaged with the inner wall of the inner groove.

[0009] Preferably, a second dovetail tenon block is provided in the middle of the outer surface of the precast panel, and semi-dovetail tenon blocks are provided on both sides of the outer surface of the precast panel. The semi-dovetail tenon blocks on adjacent precast panels are joined together to form a third dovetail tenon block. A number of first water-permeable holes are evenly distributed in a rectangular array on the outer surface of the precast panel.

[0010] Preferably, the outer surface of the prefabricated support plate is provided with a second dovetail groove that matches the second dovetail tenon block, so that the front and rear prefabricated panels can be connected to each other through the prefabricated support plate. A second water-permeable hole is provided in the middle of the outer surface of the prefabricated support plate. A first snap-fit ​​groove is provided on the upper surface of the prefabricated support plate. A first snap-fit ​​protrusion corresponding to the first snap-fit ​​groove is provided on the lower surface of the prefabricated support plate, so that adjacent prefabricated support plates can be inserted through the cooperation of the first snap-fit ​​groove and the first snap-fit ​​protrusion. A third water-permeable hole is provided on both sides of the upper and lower surfaces of the prefabricated support plate located at the first snap-fit ​​groove and the first snap-fit ​​protrusion.

[0011] Preferably, the outer surface of the prefabricated joint reinforcement has a third dovetail groove that matches the third dovetail tenon block, the upper surface of the prefabricated joint reinforcement has a second snap-fit ​​groove, and the lower surface of the prefabricated joint reinforcement has a second snap-fit ​​protrusion that matches the second snap-fit ​​groove, so that adjacent prefabricated joint reinforcements can be inserted through the cooperation of the second snap-fit ​​groove and the second snap-fit ​​protrusion. The middle part of the prefabricated joint reinforcement has a hollow window, and the prefabricated side cover is installed on the outer side of the edge prefabricated panel. The outer surface of the prefabricated side cover has a first half-dovetail groove that matches the half-dovetail tenon block, so that the prefabricated side cover can connect the two prefabricated panels to each other.

[0012] Preferably, the upper surface of the precast grate is provided with a fourth dovetail groove at the middle of the outer side of the precast grate, which is adapted to the third dovetail tenon block; the upper surface of the precast grate is provided with a first notch at the middle of the upper surface, which is adapted to the second snap-fit ​​protrusion; and the upper surface of the precast grate is provided with second notches at both sides, which are adapted to the first snap-fit ​​protrusion.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a prefabricated cavity differentiated filling green drainage assembled retaining wall, which has the following beneficial effects: 1. This prefabricated cavity differentiated filling green drainage assembled retaining wall, through the setting of the first dovetail groove and the first dovetail clip of the foundation pad, enables the retaining wall to have the effect of rapid splicing foundation. Through the cooperation of the first dovetail groove, the first dovetail clip, the steel reinforcement, the limiting washer and the nut, the foundation can be assembled without on-site formwork and reinforcement during use, reducing the generation of construction waste, thereby shortening the construction cycle, reducing construction costs, and achieving the purpose of improving assembly efficiency and environmental protection.

[0014] 2. This prefabricated cavity differentiated filling green drainage prefabricated retaining wall, through the setting of the first permeable hole of the prefabricated panel and the second and third permeable holes of the prefabricated support plate, enables the retaining wall to collect and drain pore water. Through the coordinated setting of the first, second, and third permeable holes and the hollow windows of the prefabricated reinforcement components at the joints, a systematic drainage network can be formed during use, effectively dissipating the pore water pressure of the slope soil, thereby improving the stability of the retaining wall and meeting the engineering needs of rainy areas in the south.

[0015] 3. This prefabricated cavity differentiated filling green drainage assembled retaining wall, through the setting of the fourth dovetail groove, the first notch and the second notch of the prefabricated grate, enables the retaining wall to separate different filling media. Through the combination of prefabricated grate, lower concrete, middle permeable filler and upper green planting soil, the retaining wall can realize the integrated function of load-bearing, drainage and greening during use, thereby improving the multi-functionality of the retaining wall and achieving the purpose of meeting the needs of slope protection and ecological environmental protection in engineering. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the basic pad block of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the structure of the present invention in its bottled state; Figure 5 This is a schematic diagram of the structure of the prefabricated panel of the present invention; Figure 6 This is a schematic diagram of the prefabricated support plate of the present invention; Figure 7 This is a schematic diagram of the structure of the prefabricated joint reinforcement of the present invention; Figure 8 This is a schematic diagram of the prefabricated side cover structure of the present invention; Figure 9 This is a schematic diagram of the structure of the prefabricated grate plate of the present invention.

[0017] In the diagram: 1. Foundation pad; 11. First dovetail groove; 12. First dovetail retaining block; 13. Through hole; 14. Inner groove; 15. First recessed opening; 16. Second recessed opening; 17. Reinforcing steel; 18. Slot; 19. Limiting washer; 110. Nut; 2. Precast panel; 21. Second dovetail retaining block; 22. Semi-dovetail retaining block; 23. Third dovetail retaining block; 24. First drainage hole; 3. Precast support plate; 31. Second dovetail... 32. Groove; 33. Second permeable hole; 34. First snap-fit ​​groove; 35. First snap-fit ​​protrusion; 36. Third permeable hole; 4. Prefabricated joint reinforcement; 47. Third dovetail groove; 48. Second snap-fit ​​groove; 49. Second snap-fit ​​protrusion; 40. Hollow window; 51. Prefabricated side cover; 62. First half dovetail groove; 63. Prefabricated grate; 64. Fourth dovetail groove; 65. First notch; 66. Second notch; 67. Second half dovetail groove. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0021] Please see Figures 1-4The prefabricated cavity differentiated filling green drainage prefabricated retaining wall provided in this embodiment has a retaining wall assembly installed on the upper surface of the foundation pad 1. The retaining wall assembly includes a prefabricated panel 2, a prefabricated support plate 3, a prefabricated joint reinforcement 4, a prefabricated side cover 5, and a prefabricated grate plate 6. One end of the foundation pad 1 has a first dovetail groove 11, and the other end has a first dovetail locking block 12. The front of the foundation pad 1 has a through hole 13 and an inner groove 14, and the upper surface has a first recessed opening 15 and a second recessed opening 16. A U-shaped steel bar 17 is inserted into the inner wall of the through hole 13. A slot 18 is opened in the middle of the steel bar 17. A limiting washer 19 is locked into the inner wall of the slot 18. The end of the steel bar 17 passes through the through hole 13 and is threaded with a nut 110. The limiting washer 19 and the nut 110 are both locked into the inner wall of the inner groove 14, forming the core structure of the stable prefabricated foundation.

[0022] Specifically, multiple base pads 1 are spliced ​​and positioned together by the first dovetail groove 11 and the first dovetail locking block 12. The limiting washer 19 is inserted into the locking groove 18 of the reinforcing bar 17. The end of the reinforcing bar 17 is passed through the through hole 13 of the base pad 1 and tightened with a nut 110 to secure it. The reinforcing bar 17 is then firmly installed on the front and rear sides of the base pad 1. Concrete is then poured on the front and rear sides of the base pad 1 and wrapped around the reinforcing bar 17. After the concrete hardens to form a stable foundation, the inner groove 14 hides the limiting washer 19 and the nut 110 to ensure that the foundation surface is flat.

[0023] Please see Figures 1-8 The prefabricated panel 2 of the prefabricated cavity differentiated filling green drainage assembled retaining wall has a second dovetail tenon block 21 in the middle and a semi-dovetail tenon block 22 on both sides. Adjacent semi-dovetail tenon blocks 22 are spliced ​​to form a third dovetail tenon block 23. Several first water permeable holes 24 are opened on the outer surface. The prefabricated support plate 3 has a second dovetail tenon groove 31 and a second water permeable hole 32 that are adapted to the second dovetail tenon block 21. The upper and lower surfaces are respectively provided with a first locking groove 33 and a first locking protrusion 34. The sides are provided with a third water permeable hole 35. The joint prefabricated reinforcement 4 has a third dovetail tenon groove 41 that is adapted to the third dovetail tenon block 23. The upper and lower surfaces are respectively provided with a second locking groove 42 and a second locking protrusion 43. A hollow window 44 is opened in the middle. The prefabricated side cover 5 has a first semi-dovetail tenon groove 51 that is adapted to the semi-dovetail tenon block 22, which constitutes the key structure of the rapid assembly wall.

[0024] Specifically, the lower end of the precast support plate 3 is inserted into the first recess 15 of the foundation pad 1, and the second dovetail tenon block 21 of the precast panel 2 is inserted into the second dovetail tenon groove 31 of the precast support plate 3 to complete the connection between the front and rear precast panels 2 and the precast support plate 3; the third dovetail tenon groove 41 of the joint precast reinforcement 4 is inserted into the third dovetail tenon block 23 formed by the assembly of adjacent precast panels 2, and the lower end is inserted into the second recess 16; the precast side cover 5 is installed on the outside of the edge precast panel 2 by engaging the first half dovetail tenon groove 51 and the half dovetail tenon block 22; the upper and lower precast support plates 3 and the joint precast reinforcement 4 are respectively positioned by engaging the engagement protrusions and engaging the engagement grooves to achieve rapid wall assembly.

[0025] Please see Figures 1-9 The prefabricated grate plate 6 of the prefabricated cavity differentiated filling green drainage prefabricated retaining wall has a fourth dovetail groove 61 in the middle of the outer side that matches the third dovetail tenon block 23, a first notch 62 in the middle of the upper surface that matches the second locking protrusion 43, and a second notch 63 in both sides that matches the first locking protrusion 34. Together with the layered differentiated filling, it forms the key structure of cavity drainage greening.

[0026] Specifically, after the wall is assembled to the set height, the precast grate 6 is placed on the upper surface of the precast support plate 3 and the precast reinforcement 4 at the joint, and the positioning and snapping are completed by the fourth dovetail groove 61, the first notch 62, and the second notch 63; the lower cavity of the retaining wall is filled with concrete for load bearing, the middle layer is filled with permeable filler to form a drainage channel, and the upper layer is filled with green planting soil. The first permeable hole 24 of the precast panel 2, the second permeable hole 32 and the third permeable hole 35 of the precast support plate 3, and the hollow window 44 of the precast reinforcement 4 at the joint form a through drainage system. Green plants can be sown in the upper planting soil to realize the drainage and greening functions of the retaining wall.

[0027] In summary, when using the overall equipment: First, excavate the bottom marking surface of the roadbed at the designated location to locate the foundation position and the settlement gauge embedment position; then, connect multiple foundation pads 1 together through the first dovetail groove 11 and the first dovetail locking block 12 to form a continuous foundation base; insert the limiting washer 19 into the slot 18 of the reinforcing bar 17; after passing the end of the reinforcing bar 17 through the through hole 13, tighten it with the nut 110 so that the limiting washer 19 and the nut 110 are inserted into the inner groove 14; then, pour concrete on the front and back sides of the foundation pads 1 to wrap the reinforcing bar 17 and form a stable foundation; then, insert the lower end of the precast support plate 3 into the first recess 15, and insert the second dovetail locking block 21 of the precast panel 2 into the second dovetail groove 31 of the precast support plate 3; after completing two sets of precast panels... After the support plate 3 and the precast panel 2 are installed, the precast joint reinforcement 4 is secured to the third dovetail tenon block 23 through the third dovetail tenon groove 41 and its lower end is secured to the second recess 16. The precast side cover 5 is installed on the edge precast panel 2 through the first half dovetail tenon groove 51 and the half dovetail tenon block 22. Then, the number of layers and the filling medium of each layer are determined according to the design height. The precast grate 6 is erected on the upper surface of the precast support plate 3 and the precast joint reinforcement 4 through the fourth dovetail tenon groove 61, the first notch 62 and the second notch 63. Concrete is filled in the lower layer, permeable filler is filled in the middle layer, and green planting soil is filled in the upper layer. The above assembly and filling steps are repeated to assemble upwards. Finally, green plants are sown in the uppermost planting soil to complete the construction and use of the overall retaining wall.

[0028] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut 110 connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated cavity differentiated filling green drainage prefabricated retaining wall, comprising a foundation pad (1) and a retaining wall assembly, wherein the retaining wall assembly is installed on the upper surface of the foundation pad (1), characterized in that: The retaining wall assembly includes a precast panel (2), a precast support plate (3), a precast joint reinforcement (4), a precast side cover (5), and a precast grate (6). The upper surface of the foundation pad (1) is provided with a first recessed opening (15). The precast panel (2) is installed on the upper surface of the foundation pad (1). The precast support plate (3) is inserted into the inner wall of the first recessed opening (15). The upper surface of the foundation pad (1) is provided with a second recessed opening (16). The precast joint reinforcement (4) is inserted into the inner wall of the second recessed opening (16). The precast side cover (5) is installed between the two precast panels (2) on the front and rear sides. The precast grate (6) is snapped between the two precast panels (2) on the front and rear sides and abuts against the upper surfaces of the precast support plate (3) and the precast joint reinforcement (4).

2. The prefabricated cavity differentiated filling green drainage assembled retaining wall according to claim 1, characterized in that: One end of the base pad (1) is provided with a first dovetail groove (11), and the other end of the base pad (1) is provided with a first dovetail locking block (12) that is adapted to the first dovetail groove (11), so that two adjacent base pads (1) can be connected to each other.

3. The prefabricated cavity differentiated filling green drainage assembled retaining wall according to claim 1, characterized in that: The base pad (1) has a through hole (13) on the front. A steel bar (17) is inserted into the inner wall of the through hole (13). The steel bar (17) is U-shaped. A slot (18) is opened in the middle of the steel bar (17). A limit washer (19) is engaged in the inner wall of the slot (18). A nut (110) is threaded onto the end of the steel bar (17) after it passes through the through hole (13).

4. A prefabricated cavity differentiated filling green drainage assembled retaining wall according to claim 1 or 3, characterized in that: The outer surface of the base pad (1) is provided with an inner groove (14) on the outside of the through hole (13). The limiting gasket (19) is engaged with the inner wall of the inner groove (14), and the nut (110) is engaged with the inner wall of the inner groove (14).

5. A prefabricated cavity differentiated filling green drainage assembled retaining wall according to claim 1, characterized in that: A second dovetail tenon block (21) is provided in the middle of the outer surface of the prefabricated panel (2), and half dovetail tenon blocks (22) are provided on both sides of the outer surface of the prefabricated panel (2). The half dovetail tenon blocks (22) on adjacent prefabricated panels (2) are joined together to form a third dovetail tenon block (23). A number of first water-permeable holes (24) are evenly distributed in a rectangular array on the outer surface of the prefabricated panel (2).

6. The prefabricated cavity differentiated filling green drainage assembled retaining wall according to claim 1, characterized in that: The outer surface of the prefabricated support plate (3) is provided with a second dovetail groove (31) that is adapted to the second dovetail tenon block (21), so that the two prefabricated panels (2) can be connected to each other through the prefabricated support plate (3). The middle part of the outer surface of the prefabricated support plate (3) is provided with a second water-permeable hole (32). The upper surface of the prefabricated support plate (3) is provided with a first snap-fit ​​groove (33). The lower surface of the prefabricated support plate (3) is provided with a first snap-fit ​​protrusion (34) corresponding to the first snap-fit ​​groove (33), so that the upper and lower adjacent prefabricated support plates (3) can be inserted by the cooperation of the first snap-fit ​​groove (33) and the first snap-fit ​​protrusion (34). The upper and lower surfaces of the prefabricated support plate (3) are provided with third water-permeable holes (35) on both sides of the first snap-fit ​​groove (33) and the first snap-fit ​​protrusion (34).

7. A prefabricated cavity differentiated filling green drainage assembled retaining wall according to claim 1, characterized in that: The outer surface of the prefabricated joint reinforcement (4) is provided with a third dovetail groove (41) that is adapted to the third dovetail tenon block (23). The upper surface of the prefabricated joint reinforcement (4) is provided with a second snap-fit ​​groove (42). The lower surface of the prefabricated joint reinforcement (4) is provided with a second snap-fit ​​protrusion (43) that is adapted to the second snap-fit ​​groove (42), so that adjacent prefabricated joint reinforcements (4) can be inserted through the cooperation of the second snap-fit ​​groove (42) and the second snap-fit ​​protrusion (43). The middle part of the prefabricated joint reinforcement (4) is provided with a hollow window (44). The prefabricated side cover (5) is installed on the outside of the edge prefabricated panel (2). The outer surface of the prefabricated side cover (5) is provided with a first half dovetail groove (51) that is adapted to the half dovetail tenon block (22), so that the prefabricated side cover (5) can connect the two prefabricated panels (2) to each other.

8. A prefabricated cavity differentiated filling green drainage assembled retaining wall according to claim 1, characterized in that: The upper surface of the precast grate (6) has a fourth dovetail groove (61) adapted to the third dovetail tenon block (23) in the middle of the outer side. The upper surface of the precast grate (6) has a first notch (62) adapted to the second snap-fit ​​protrusion (43) in the middle of the middle of the upper surface. The upper surface of the precast grate (6) has a second notch (63) adapted to the first snap-fit ​​protrusion (34) on both sides.

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