Prefabricated three-dimensional reinforced earth retaining wall and construction method

Abstract

The present application relates to the technical field of reinforced earth retaining wall, specifically to a prefabricated three-dimensional reinforced earth retaining wall and a construction method, comprising a retaining wall structure, a bottom block, a drainage channel and a soil layer, the front end of the soil layer is limited by the retaining wall structure, the lower end of the retaining wall structure is provided with the drainage channel, the front end of the drainage channel is limited by the bottom block, the soil layer bears the retaining wall structure, and the retaining wall structure is arranged obliquely, the bottom block and the drainage channel are used for drainage treatment, the retaining wall structure comprises a lifting component, a cushion layer, a combination component and a limiting support component, the combination component and the limiting support component are limited, two lifting components are fixedly connected to the upper part of the front end of the limiting support component, the two lifting components are used for the reinforced connection of the combination component and the limiting support component, and the cushion layer is arranged between the combination component and the limiting support component. Through the arrangement of the retaining wall structure, the protection is strengthened, and the supporting capacity is improved.

Description

Technical Field

[0001] This invention relates to the field of reinforced soil retaining wall technology, specifically to prefabricated three-dimensional reinforced soil retaining walls and their construction methods. Background Technology

[0002] Reinforced soil retaining walls are retaining walls composed of backfill, reinforcing strips, and facing blocks, designed to withstand lateral soil pressure. By adding reinforcing bars to the soil, the friction between the bars and the soil improves the soil's deformation conditions and engineering properties, thereby stabilizing the soil. They are generally used on relatively flat and wide embankment sections. The installation of reinforced soil retaining walls prevents soil deformation and instability and helps withstand lateral earth pressure.

[0003] Chinese Patent Publication No. CN116950123A discloses a prefabricated three-dimensional reinforced soil retaining wall and its construction method, belonging to the field of building construction technology. It solves the problems of poor strength, easy deformation, long construction period, and high cost of existing retaining walls. The construction method of this prefabricated three-dimensional reinforced soil retaining wall includes: semi-finished product processing; slope leveling and foundation treatment; construction of the retaining wall foundation; assembly of various components and laying of the casting frame; casting; and wall greening. This prefabricated three-dimensional reinforced soil retaining wall includes a retaining wall foundation and several top covers. Between the retaining wall foundation and the top covers are several connecting three-dimensional reinforced block components, several casting blocks, a bottom three-dimensional reinforced block component, a top three-dimensional reinforced block component, and a retaining wall panel component.

[0004] Currently, most reinforced soil retaining walls and the retaining wall structures disclosed in the aforementioned cases adopt an embedded design for support. Due to the limited bearing capacity of the soil, they are prone to detachment in the later stages. Therefore, existing reinforced soil retaining walls need to be improved. Summary of the Invention

[0005] To address the problems in the existing technology, this invention provides a prefabricated three-dimensional reinforced soil retaining wall and a construction method thereof.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a prefabricated three-dimensional reinforced soil retaining wall and a construction method, including a retaining wall structure, a base block, a drainage channel and a soil layer, wherein the soil layer is limited by a retaining wall structure at the front end, the lower end of the retaining wall structure is provided with a drainage channel, and the front end of the drainage channel is limited by a base block;

[0007] The soil layer supports the retaining wall structure, which is inclined and is drained through the base block and drainage channel.

[0008] The retaining wall structure includes lifting components, a padding layer, a combined component, and a limiting support component. The combined component and the limiting support component are positioned to limit each other. Two lifting components are fixedly connected to the upper front sides of the limiting support component, and the two lifting components reinforce the connection between the combined component and the limiting support component. At the same time, a padding layer is laid between the combined component and the limiting support component for connection at the front position. Through the setting of the retaining wall structure, it can be connected to the soil layer to protect the soil layer and form a retaining wall structure. The lower end of the retaining wall structure is provided with a bottom block and a drainage channel to help with drainage. The padding layer between the combined component and the limiting support component in the retaining wall structure plays a connecting and bonding role, helping the combined component and the limiting support component to better combine. At the same time, the limiting support component is also connected to the combined component to limit the lifting function and improve the overall stability of the retaining wall structure.

[0009] The combined components are inserted into the soil layer to provide positioning. The cushion layer, combined components, and positioning support components are laid and installed in layers to improve the overall connection stability.

[0010] Specifically, the lifting component includes a reinforcing bar block, a cement block, a reinforcing anchor rod, a first connecting frame, and a reinforcing bar connecting frame. A cement block is fixedly connected to the upper side of the reinforcing bar block. A reinforcing anchor rod is provided on the cement block. A first connecting frame is provided at the lower end of the cement block. The reinforcing anchor rod and the first connecting frame are top-limited by the cement block. A reinforcing bar connecting frame is fixedly connected to the first connecting frame and is fixed to the reinforcing bar block. A second connecting frame is fixedly connected to the lower end of the first connecting frame. The first connecting frame, the reinforcing bar connecting frame, and the second connecting frame are integrally fixed, providing external protection for the assembled component. Through the lifting component, the lifting component is connected to the assembled component, wherein the reinforcing bar block and the concrete surface... The layers are connected, and the cement blocks on the steel bars can strengthen the anchor rods to bear the load. The lower end of the reinforced anchor rods is connected to the first connecting frame, the steel bar connecting frame, and the second connecting frame to protect the concrete surface layer. At the same time, the first and second embedded steel bars in the combined component are inserted into the soil layer. The first fastening frame, the second fastening frame, and the auxiliary steel bars cooperate to support the combined component, which facilitates the subsequent laying of concrete blocks and concrete surface layers. The tie rods and embedded rods in the limiting support component are adapted to the first embedded steel bars to fix the limiting support component. The setting of stones and base concrete can facilitate the bonding with the subbase and better integrate with the limiting support component.

[0011] Specifically, the assembly includes a first fastening frame, a concrete block, a second fastening frame, auxiliary reinforcing bars, a fastening pin, a concrete surface layer, and a first embedded reinforcing bar. A second embedded reinforcing bar is fixedly connected to the first embedded reinforcing bar, and the upper end of the second embedded reinforcing bar is fixedly connected to the fastening pin. The fastening pin is used to limit the position of the concrete block and the concrete surface layer, thereby binding and fixing the reinforcing bars in the concrete block and the concrete surface layer. The concrete block is limited and connected by the first fastening frame and the second fastening frame, and the side end of the concrete block is limited and fixed by the auxiliary reinforcing bar. The first embedded reinforcing bar and the second embedded reinforcing bar are embedded into the soil layer for anchoring support.

[0012] Specifically, the limiting support component includes stones, base concrete, tie rods, insert rods, and auxiliary positioning blocks. Stones are laid on the base concrete, and auxiliary positioning blocks are fixedly connected to the side ends of the base concrete. Limiting steel bars are fixedly connected to the auxiliary positioning blocks. The limiting steel bars can be combined with the combined component to limit the position of the combined component. Tie rods are tied to the rear ends of the steel bars in the base concrete, and insert rods are provided at the rear ends of the tie rods.

[0013] Specifically, the tie rod is connected to the first embedded steel bar through an insert rod, thereby improving the support function. The cushion layer is laid on stones and base concrete, and a concrete surface layer is laid on the cushion layer. The insert rod adopts a hook structure, which can be tightly connected to the first embedded steel bar.

[0014] Specifically, the first fastening frame, the second fastening frame, and the auxiliary reinforcing bars are all embedded inside the soil layer, and the concrete surface layer is set in a sloping trapezoidal structure, which can fit the soil layer and improve the bearing capacity.

[0015] Specifically, the first connecting frame, the steel bar connecting frame, and the second connecting frame are exposed on the surface of the concrete surface layer, and the inner layer is connected to the concrete surface layer. They are cured through the concrete surface layer and can also provide auxiliary support for the concrete surface layer.

[0016] Specifically, the combined component and the limiting support component constitute a dual support system. The combined component is supported by the first embedded steel bar and the second embedded steel bar, as well as by its own weight and connection with the subgrade. The limiting support component is connected to the first embedded steel bar through tie rods and insert rods. At the same time, the tie rods and insert rods are embedded and connected to the soil layer for support and load bearing. The soil layer includes a geogrid and a modular panel. The side end of the geogrid is limited by the modular panel.

[0017] Specifically, the soil layer has a concrete side block at one end, and the concrete side block is fixed to the retaining wall structure. The concrete side block has built-in steel bars that penetrate the soil layer to improve the bonding capacity.

[0018] The construction method for prefabricated three-dimensional reinforced soil retaining walls includes the following steps:

[0019] S1. First, construct the limiting support components. First, level the soil surface, then embed tie rods and insert rods. At this time, the tie rods and insert rods are connected to the steel bars in the base concrete and the steel bars are tied and fixed. Then, the base concrete can be laid, and stones are buried on the base concrete to facilitate the subsequent bonding with the subbase. At the same time, auxiliary positioning blocks are also set. The auxiliary positioning blocks are equipped with limiting steel bars to facilitate the subsequent laying and positioning of the combined components.

[0020] S2. Next, the subbase is laid on the stones and base concrete. After the surface has initially set, the surface is roughened. Then, the assembly components are laid. Before installation, the first and second embedded steel bars are positioned and installed. The first embedded steel bar is connected to the bottom of the rod and is connected to the rod. At this time, the rod can be connected to the first embedded steel bar for lifting. At the same time, the steel bars in the concrete block and concrete surface are tied and fixed. The first fastening frame, the second fastening frame, and the auxiliary steel bars are also positioned and installed with the soil layer. The fastening pin is connected to the second embedded steel bar for top positioning.

[0021] S3. At the same time, the steel bars on the lifting component are also reinforced with steel bars. The anchor rods are positioned by cement blocks on the steel bars. The lower end of the anchor rods is fixed by the first connecting frame, the steel bar connecting frame, and the second connecting frame to achieve the connection and combination with the steel bars inside the steel bars.

[0022] S4. Then, concrete blocks and concrete surface layers are laid and left to set, which completes the production of the entire retaining wall.

[0023] The beneficial effects of this invention are:

[0024] First, this invention, through the setting of a retaining wall structure, can be connected to the soil layer to protect the soil layer and form a retaining wall structure. The lower end of the retaining wall structure is provided with a base block and drainage channel, which can help with drainage. A pad layer is provided between the combined components and limiting support components within the retaining wall structure, which plays a connecting and bonding role, helping the combined components and limiting support components to better combine. At the same time, the limiting support components are also limited and connected to the combined components, improving the lifting function and enhancing the overall stability of the retaining wall structure. The soil layer includes geogrid and modular panels. The side ends of the geogrid are limited by the modular panels. The geogrid plays a role in enhancing the connection capacity. The geogrid is a planar mesh material with open mesh and high strength formed by directional stretching of polymer materials. It is made of polypropylene, high-density polyethylene or other high molecular polymers as raw materials, with the addition of a certain amount of anti-ultraviolet additives, and produced by new processes such as hot melt and extrusion stretching. Uniaxial stretched plastic geogrid mainly uses high-density polyethylene or polypropylene as raw materials. It has high tensile strength, low elongation, and is suitable for various soils. It is currently a widely used and ideal reinforcement material.

[0025] Second, this invention utilizes a lifting component connected to the assembly. The reinforcing steel block is connected to the concrete surface layer, and a cement block reinforces the anchor rod. The lower end of the anchor rod connects to the first connecting frame, the reinforcing steel frame, and the second connecting frame, protecting the concrete surface layer. Simultaneously, the first and second embedded reinforcing steel bars within the assembly are inserted into the soil layer. The first, second, and auxiliary fastening frames, along with the auxiliary reinforcing steel bars, also support the assembly, facilitating subsequent laying of the concrete blocks and surface layer. The tie rods and inserts within the limiting support component are adapted to the first embedded reinforcing steel bars, enabling the limiting support component to be pulled and fixed. The placement of stones and base concrete facilitates integration with the subbase and better integration with the limiting support component. A geogrid within the soil layer improves connectivity and enhances the structural stability of the coating. The geogrid is evenly distributed from top to bottom. Furthermore, a gravel drainage layer is laid outside the soil layer for internal drainage. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0028] Figure 2 This is a side view three-dimensional structural diagram of the main body in this invention;

[0029] Figure 3 This is a three-dimensional structural diagram of the retaining wall structure from the front view in this invention;

[0030] Figure 4 This is a side view three-dimensional structural diagram of the retaining wall structure in this invention;

[0031] Figure 5 This is a three-dimensional structural diagram of the retaining wall structure from the rear view in this invention;

[0032] Figure 6 This is a three-dimensional structural diagram of the lifting component from the front view in this invention;

[0033] Figure 7 This is a frontal perspective three-dimensional structural diagram of the combined components in this invention;

[0034] Figure 8 This is a three-dimensional structural diagram of the limiting support component from the front view in this invention;

[0035] Figure 9 This is an internal plan view of the soil layers in this invention;

[0036] Figure 10 This is a three-dimensional structural diagram of the geogrid from the front view in this invention;

[0037] Figure 11 This is a frontal perspective three-dimensional structural diagram of the second embodiment of the main body of the present invention.

[0038] In the diagram: 1-Retaining wall structure, 2-Base block, 3-Drainage channel, 4-Soil layer, 5-Lifting component, 6-Subbase layer, 7-Assembled component, 8-Limiting support component, 9-Reinforcing bar block, 10-Cement block, 11-Reinforcing anchor, 12-First connecting frame, 13-Reinforcing bar connecting frame, 14-Second connecting frame, 15-First fastening frame, 16-Concrete block, 17-Second fastening frame, 18-Auxiliary reinforcing bar, 19-Fastening pin, 20-Concrete surface layer, 21-First embedded reinforcing bar, 22-Second embedded reinforcing bar, 23-Stone block, 24-Base concrete, 25-Tie rod, 26-Embedded rod, 27-Auxiliary positioning block, 28-Limiting reinforcing bar, 29-Concrete side block, 30-Built-in reinforcing bar, 31-Geogrid, 32-Modular panel. Detailed Implementation

[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0040] The invention will be further described below with reference to the accompanying drawings.

[0041] Example 1

[0042] like Figures 1-10 As shown, the prefabricated three-dimensional reinforced soil retaining wall and construction method of the present invention include a retaining wall structure 1, a bottom block 2, a drainage channel 3 and a soil layer 4. The front end of the soil layer 4 is limited by the retaining wall structure 1, the lower end of the retaining wall structure 1 is provided with a drainage channel 3, and the front end of the drainage channel 3 is limited by the bottom block 2.

[0043] The soil layer 4 supports the retaining wall structure 1, and the retaining wall structure 1 is set at an angle, with drainage through the bottom block 2 and drainage channel 3.

[0044] like Figure 3-5 As shown, the retaining wall structure 1 includes a lifting component 5, a padding layer 6, a combined component 7, and a limiting support component 8. The combined component 7 and the limiting support component 8 are positioned to limit each other. Two lifting components 5 are fixedly connected to the upper front sides of the limiting support component 8. The two lifting components 5 reinforce the connection between the combined component 7 and the limiting support component 8. At the same time, a padding layer 6 is laid between the combined component 7 and the limiting support component 8 for connecting the front parts of the combined component 7 and the limiting support component 8.

[0045] The combined component 7 is inserted into the soil layer 4 to limit the movement. The cushion layer 6, combined component 7, and limiting support component 8 are laid and installed in layers to improve the overall connection stability. The soil layer 4 is equipped with a geogrid 31 to provide support and improve the structural stability of the soil layer 4. The geogrid 31 is evenly distributed from top to bottom. At the same time, a crushed stone drainage layer is laid on the outside of the soil layer 4 to provide internal drainage.

[0046] like Figure 6 As shown, the lifting component 5 includes a steel bar block 9, a cement block 10, a reinforcing anchor rod 11, a first connecting frame 12, and a steel bar connecting frame 13. The cement block 10 is fixedly connected to the upper side of the steel bar block 9. The cement block 10 is provided with a reinforcing anchor rod 11. The lower end of the cement block 10 is provided with a first connecting frame 12. The reinforcing anchor rod 11 and the first connecting frame 12 are limited at the top by the cement block 10. The steel bar connecting frame 13 is fixedly connected to the first connecting frame 12. The steel bar connecting frame 13 is fixed to the steel bar block 9, and the lower end of the first connecting frame 12 is fixedly connected to a second connecting frame 14. The first connecting frame 12, the steel bar connecting frame 13, and the second connecting frame 14 are fixed as a whole to provide external protection for the combined component 7. The steel bar block 9 on the lifting component 5 is also reinforced with steel bars. At the same time, the reinforcing anchor rod 11 is positioned on the steel bar block 9 by the cement block 10. The lower end of the reinforcing anchor rod 11 is fixed by the first connecting frame 12, the steel bar connecting frame 13, and the second connecting frame 14 to achieve connection and combination with the steel bars inside the steel bar block 9.

[0047] like Figure 7As shown, the assembly 7 includes a first fastening frame 15, a concrete block 16, a second fastening frame 17, an auxiliary reinforcing bar 18, a fastening pin 19, a concrete surface layer 20, and a first embedded reinforcing bar 21. A second embedded reinforcing bar 22 is fixedly connected to the first embedded reinforcing bar 21. The upper end of the second embedded reinforcing bar 22 is fixedly connected to the fastening pin 19. The fastening pin 19 is used to limit the position of the concrete block 16 and the concrete surface layer 20, thereby binding and fixing the reinforcing bars inside the concrete block 16 and the concrete surface layer 20. The concrete block 16 is limited and connected by the first fastening frame 15 and the second fastening frame 17, and the side position of the concrete block 16 is limited and fixed by the auxiliary reinforcing bar 18. The first embedded steel bar 21 and the second embedded steel bar 22 are embedded into the soil layer 4 for anchoring support. Before installation, the first embedded steel bar 21 and the second embedded steel bar 22 are positioned and installed. The first embedded steel bar 21 is connected to the bottom of the embedded rod 26 and is connected to the embedded rod 26. At this time, the embedded rod 26 can be connected to the first embedded steel bar 21 for lifting function. At the same time, the steel bars in the concrete block 16 and the concrete surface layer 20 are tied and fixed. At the same time, the first fastening frame 15, the second fastening frame 17, and the auxiliary steel bar 18 are also positioned and installed in the soil layer 4. The fastening pin 19 is connected to the second embedded steel bar 22 for top positioning.

[0048] like Figure 8 As shown, the limiting support component 8 includes stones 23, base concrete 24, tie rods 25, embedded rods 26, and auxiliary positioning blocks 27. Stones 23 are laid on the base concrete 24. The auxiliary positioning blocks 27 are fixedly connected to the side end of the base concrete 24. Limiting steel bars 28 are fixedly connected to the auxiliary positioning blocks 27. The limiting steel bars 28 can be combined with the combined component 7 to limit the position of the combined component 7. The rear end of the steel bars in the base concrete 24 is tied with tie rods 25. The rear end of the tie rods 25 is equipped with embedded rods 26. After leveling the surface of the soil layer 4, the tie rods 25 and embedded rods 26 are embedded. At this time, the tie rods 25 and embedded rods 26 are connected to the steel bars in the base concrete 24 to tie and fix the steel bars. Then the base concrete 24 can be laid, and stones 23 are buried on the base concrete 24 to facilitate the subsequent combination with the subbase 6. At the same time, the auxiliary positioning blocks 27 are also set. The setting of the limiting steel bars 28 on the auxiliary positioning blocks 27 facilitates the subsequent laying and positioning of the combined component 7.

[0049] The tie rod 25 is connected to the first embedded steel bar 21 through the embedded rod 26, thereby improving the support function. The cushion layer 6 is laid on the stones 23 and the base concrete 24. The concrete surface layer 20 is laid on the cushion layer 6. The embedded rod 26 adopts a hook structure, which can be tightly connected to the first embedded steel bar 21.

[0050] The first fastening frame 15, the second fastening frame 17, and the auxiliary steel bars 18 are all embedded inside the soil layer 4, and the concrete surface layer 20 is set in a sloping trapezoidal structure, which can fit the soil layer 4 and improve the bearing capacity.

[0051] The first connecting frame 12, the steel bar connecting frame 13, and the second connecting frame 14 are exposed on the surface of the concrete surface layer 20. The inner layer is connected to the concrete surface layer 20 and is cured through the concrete surface layer 20. At the same time, it can also provide auxiliary support for the concrete surface layer 20.

[0052] The combined component 7 and the limiting support component 8 constitute a dual support system. The combined component 7 is supported by the first embedded steel bar 21 and the second embedded steel bar 22, as well as by its own weight and its connection with the cushion layer 6. The limiting support component 8 is connected to the first embedded steel bar 21 through tie rods 25 and embedded rods 26. Simultaneously, the tie rods 25 and embedded rods 26 are embedded and connected to the soil layer 4 for support and load-bearing. The soil layer 4 includes a geogrid 31 and modular panels 32. The side ends of the geogrid 31 are limited by the modular panels 32. The geogrid 31 enhances the connection capacity. The geogrid 31 is... Polymer materials are oriented and stretched to form a perforated mesh, resulting in a high-strength planar mesh material. It is made from polypropylene, high-density polyethylene, or other high-molecular polymers, with the addition of a certain amount of UV-resistant additives, and produced through new processes such as hot-melt and extrusion stretching. Uniaxial stretched plastic grids mainly use high-density polyethylene or polypropylene as raw materials, exhibiting high tensile strength and low elongation, making them suitable for various soil types. They are currently a widely used and ideal reinforcing material. The entire sheet is punched and then oriented and stretched, characterized by high node strength, good overall performance, and a single integrated structure of transverse and longitudinal ribs.

[0053] Working principle: When in use, the user first constructs the limiting support component 8. First, the surface of the soil layer 4 is leveled, and then the tie rod 25 and the embedded rod 26 are embedded. At this time, the tie rod 25 and the embedded rod 26 are connected to the steel bars in the base concrete 24 and the steel bars are tied and fixed. Then the base concrete 24 can be laid, and stones 23 are buried on the base concrete 24 to facilitate the subsequent combination with the subbase 6. At the same time, the auxiliary positioning block 27 is also set. The auxiliary positioning block 27 is set with limiting steel bars 28 to facilitate the subsequent laying and positioning of the combined component 7.

[0054] Next, the subbase 6 is laid on the stones 23 and the base concrete 24. After the surface has initially set, the surface is roughened.

[0055] Next, the assembly component 7 is laid. Before installation, the first embedded steel bar 21 and the second embedded steel bar 22 are positioned and installed. The first embedded steel bar 21 is connected to the bottom of the embedded rod 26 and is connected to the embedded rod 26. At this time, the embedded rod 26 can be connected to the first embedded steel bar 21 to perform the lifting function. At the same time, the steel bars in the concrete block 16 and the concrete surface layer 20 are tied and fixed. Meanwhile, the first fastening frame 15, the second fastening frame 17, and the auxiliary steel bar 18 are also positioned and installed with the soil layer 4. The fastening pin 19 is connected to the second embedded steel bar 22 and is also positioned at the top.

[0056] At the same time, the steel bar block 9 on the lifting component 5 is also reinforced with steel bars. Meanwhile, the steel bar block 9 is positioned by the cement block 10 to reinforce the anchor rod 11. The lower end of the reinforced anchor rod 11 is fixed by the first connecting frame 12, the steel bar connecting frame 13, and the second connecting frame 14 to achieve the connection and combination with the steel bars inside the steel bar block 9.

[0057] Afterwards, concrete blocks 16 and concrete surface layer 20 are laid and left to set. The production of the entire retaining wall is then completed. Geogrid 31 is installed inside the soil layer 4 to provide support and improve the structural stability of the soil layer 4. The geogrid 31 is evenly distributed from top to bottom. At the same time, a gravel drainage layer is laid outside the soil layer 4 to provide internal drainage. The work is then completed.

[0058] Example 2

[0059] Based on Example 1, such as Figure 11 As shown, a concrete side block 29 is provided at the side end of the soil layer 4, and the concrete side block 29 is fixed to the retaining wall structure 1. An internal steel bar 30 is provided on the concrete side block 29, and the internal steel bar 30 penetrates the soil layer 4 to improve the tie-in capacity.

[0060] In use, the concrete side block 29 is connected to the side end of the soil layer 4, and the concrete side block 29 is provided with built-in steel bars 30. The built-in steel bars 30 can be inserted into the interior of the soil layer 4 to carry out the overall support work of the soil layer 4, improve the stability of the soil layer 4, and better improve the bearing capacity of the soil layer 4.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated three-dimensional reinforced soil retaining wall, characterized in that: Including retaining wall structure (1), bottom block (2), drainage channel (3) and soil layer (4), the front end of the soil layer (4) is provided with retaining wall structure (1), the lower end of the retaining wall structure (1) is provided with drainage channel (3), and the front end of the drainage channel (3) is provided with bottom block (2); The soil layer (4) bears the retaining wall structure (1), and the retaining wall structure (1) is arranged obliquely, and the bottom block (2) and the drainage channel (3) are used for drainage treatment; The retaining wall structure (1) includes lifting component (5), cushion layer (6), combination component (7) and limiting support component (8), the combination component (7) and the limiting support component (8) are limitingly arranged, the two lifting components (5) are fixedly connected to the upper portion of the front end of the limiting support component (8), the two lifting components (5) are used for the reinforced connection of the combination component (7) and the limiting support component (8), the cushion layer (6) is arranged between the combination component (7) and the limiting support component (8), and the combination component (7) and the limiting support component (8) are connected in the front position; The combination component (7) is inserted into the inside of the soil layer (4), can be limited, the cushion layer (6), the combination component (7) and the limiting support component (8) are installed in layers, and the overall connection stability is improved; The lifting component (5) includes reinforcing block (9), cement block (10), reinforcing anchor rod (11), first butt joint frame (12) and reinforcing bar connecting frame (13), the side end upper portion of the reinforcing block (9) is fixedly connected with the cement block (10), the cement block (10) is provided with the reinforcing anchor rod (11), the lower end of the cement block (10) is provided with the first butt joint frame (12), the reinforcing anchor rod (11) and the first butt joint frame (12) are top-limited through the cement block (10), the first butt joint frame (12) is fixedly connected with the reinforcing bar connecting frame (13), the reinforcing bar connecting frame (13) is fixed with the reinforcing block (9), the lower end of the first butt joint frame (12) is fixedly connected with the second butt joint frame (14), the first butt joint frame (12), the reinforcing bar connecting frame (13) and the second butt joint frame (14) are integrally fixed, and the external protection of the combination component (7) is carried out. The combined component (7) comprises a first fastening frame (15), a concrete block (16), a second fastening frame (17), an auxiliary steel bar (18), a fastening pin shaft (19), a concrete surface layer (20) and a first embedded steel bar (21), the first embedded steel bar (21) is fixedly connected with a second embedded steel bar (22), the upper end of the second embedded steel bar (22) is fixedly connected with the fastening pin shaft (19), the fastening pin shaft (19) is subjected to limiting treatment of the concrete block (16) and the concrete surface layer (20), so as to bind and fix the steel bars in the concrete block (16) and the concrete surface layer (20), the concrete block (16) is limitingly connected through the first fastening frame (15) and the second fastening frame (17), and the side end position of the concrete block (16) is limitingly fixed through the auxiliary steel bar (18), the first embedded steel bar (21) and the second embedded steel bar (22) are embedded into the inside of the soil layer (4) to be anchored and supported. The limiting support component (8) comprises a stone block (23), a base layer concrete (24), a pull rod (25), an embedded rod (26) and an auxiliary positioning block (27), the stone block (23) is laid on the base layer concrete (24), the side end of the base layer concrete (24) is fixedly connected with the auxiliary positioning block (27), the auxiliary positioning block (27) is fixedly connected with a limiting steel bar (28), the limiting steel bar (28) can be combined with the combined component (7) to limit the combined component (7), and the rear end of the steel bar in the base layer concrete (24) is bound with the pull rod (25), and the rear end of the pull rod (25) is provided with the embedded rod (26).

2. The assembled three-dimensional reinforced soil retaining wall according to claim 1, characterized in that: The pull rod (25) is limitingly connected with the first embedded steel bar (21) through the embedded rod (26), so as to improve the supporting effect, the cushion layer (6) is laid on the stone block (23) and the base layer concrete (24), the concrete surface layer (20) is laid on the cushion layer (6), the embedded rod (26) adopts a hook body structure and can be tightly connected with the first embedded steel bar (21).

3. The assembled three-dimensional reinforced soil retaining wall according to claim 2, characterized in that: The first fastening frame (15), the second fastening frame (17) and the auxiliary steel bar (18) are embedded into the inside of the soil layer (4), and the concrete surface layer (20) is arranged in a inclined ladder shape and can be fitted to the soil layer (4) to improve the bearing capacity.

4. The assembled three-dimensional reinforced soil retaining wall according to claim 3, characterized in that: The first butt joint frame (12), the steel bar connecting frame (13) and the second butt joint frame (14) are exposed on the surface of the concrete surface layer (20), the inner layer is connected with the concrete surface layer (20), is solidified through the concrete surface layer (20), and can assist in supporting the concrete surface layer (20).

5. The assembled three-dimensional reinforced soil retaining wall according to claim 4, characterized in that: The combination component (7) and the limiting support component (8) constitute a double support system, the combination component (7) is supported by the first embedded steel bar (21) and the second embedded steel bar (22), and is supported by the self weight and the connection with the cushion layer (6); the limiting support component (8) is connected with the first embedded steel bar (21) through the pull rod (25) and the embedded rod (26), and the pull rod (25) and the embedded rod (26) are embedded and connected with the soil layer (4) to support and bear, the soil layer (4) comprises a geogrid (31) and a modular panel (32), and the side end of the geogrid (31) is limited and arranged through the modular panel (32).

6. The assembled three-dimensional reinforced soil retaining wall according to claim 5, wherein: The side end of the soil layer (4) is provided with a concrete side block (29), and the concrete side block (29) is fixed with the retaining wall structure (1), the concrete side block (29) is provided with an embedded steel bar (30), and the embedded steel bar (30) penetrates the soil layer (4) to improve the pulling capacity.

7. The construction method of the assembled three-dimensional reinforced soil retaining wall using the assembled three-dimensional reinforced soil retaining wall according to claim 6, characterized in that, The method comprises the following steps: S1, the limiting support component (8) is constructed, the surface of the soil layer (4) is first leveled, then the pull rod (25) and the embedded rod (26) are embedded, at this time, the pull rod (25) and the embedded rod (26) are connected with the steel bars in the base layer concrete (24), the steel bars are bound and fixed, then the base layer concrete (24) can be laid, and the stone blocks (23) are filled in the base layer concrete (24), which is convenient for the combination with the cushion layer (6) and the setting of the auxiliary positioning block (27), the auxiliary positioning block (27) is provided with the limiting steel bar (28), which is convenient for the subsequent laying and positioning of the combination component (7); S2, then the cushion layer (6) is laid on the stone blocks (23) and the base layer concrete (24), and after the surface is initially cured and formed, the surface is chiseled, then the combination component (7) is laid, before installation, the first embedded steel bar (21) and the second embedded steel bar (22) are positioned and installed, the first embedded steel bar (21) is penetratingly arranged at the bottom of the embedded rod (26) and connected with the embedded rod (26), at this time, the embedded rod (26) can be connected with the first embedded steel bar (21) to realize the lifting function, the steel bars in the concrete block (16) and the concrete surface layer (20) are bound and fixed, the first fastening frame (15), the second fastening frame (17) and the auxiliary steel bar (18) are also positioned and installed with the soil layer (4), and the fastening pin shaft (19) is connected with the second embedded steel bar (22) to realize the top positioning; S3, the steel bars on the lifting component (5) are also erected, the cement block (10) on the steel bar block (9) is used to position the reinforcing anchor rod (11), the first butt joint frame (12), the steel bar connecting frame (13) and the second butt joint frame (14) are used to fix the lower end of the reinforcing anchor rod (11) to realize the connection and combination with the steel bars in the steel bar block (9); S4, then the concrete block (16) and the concrete surface layer (20) are laid and formed, and the whole retaining wall production process is completed.

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