Prefabricated retaining wall

Abstract

The utility model discloses an assembled retaining wall relates to assembled building technical field. Among them, assembled retaining wall includes pedestal, retaining wall, support body and connecting structure, retaining wall is assembled in pedestal, and support body has the first support structure of extending along the side of retaining wall and the second support structure of extending along the pedestal, connecting structure includes the first fixed hinge node for connecting first support structure and retaining wall, the second fixed hinge node for connecting second support structure and pedestal and the third fixed hinge node for connecting pedestal and retaining wall, and every fixed hinge node includes embedded part, reserved hole and pouring structure, and embedded part is fixedly arranged on one component, and reserved hole is arranged on another component, is used for with embedded part alignment, and pouring structure is filled in reserved hole, to solidify after forming hinged connection, in this way, the fixed hinge node that realizes through embedded part, reserved hole and pouring structure, support body supports retaining wall, and the lateral force of retaining wall is enhanced, reduces the hidden danger of safety.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a prefabricated retaining wall. Background Technology

[0002] Prefabricated construction refers to a construction method in which materials are prefabricated in a factory and then connected and installed on site. Compared with traditional construction methods, prefabricated construction greatly reduces manual labor and on-site wet work.

[0003] Most existing prefabricated retaining walls consist of a precast base slab and a precast retaining wall. The precast base slab is equipped with slots and tenons, and connecting bolts are pre-embedded in the precast base slab so that the precast retaining wall and the precast base slab can be connected into an integral retaining wall structure by connecting bolts and connecting nuts. Grouting material is also poured into the reserved holes in the precast retaining wall to protect the connecting bolts.

[0004] However, the heavy precast retaining wall is fixed to the base plate by bolts and lacks side support components, resulting in insufficient overall stability and the possibility of overturning, which poses a safety hazard. Utility Model Content

[0005] The main purpose of this utility model is to propose a prefabricated retaining wall, which aims to solve the safety hazards of existing prefabricated retaining walls.

[0006] To achieve the above objectives, the prefabricated retaining wall proposed in this utility model includes: Base; A retaining wall, which is assembled on the base; A support body having a first support structure extending along one side of the retaining wall and a second support structure extending along the base; and The connection structure includes a first fixed hinge node for connecting the first support structure and the retaining wall, a second fixed hinge node for connecting the second support structure and the base, and a third fixed hinge node for connecting the base and the retaining wall; wherein each fixed hinge node includes an embedded part, a reserved hole, and a casting structure, the embedded part is fixedly disposed on one component, the reserved hole is disposed on another component for alignment with the embedded part, and the casting structure fills the reserved hole to form a hinged connection after curing.

[0007] In one embodiment, the first fixed hinge node includes a first embedded part, a first reserved hole, and a first casting structure. The first embedded part is disposed on the first support structure, the first reserved hole is disposed on the retaining wall, and the first casting structure is cast and filled into the first reserved hole, so that the first support structure is connected to the retaining wall.

[0008] The second fixed hinge node also includes a second embedded part, a second reserved hole, and a second casting structure. The second embedded part is located on the base, the second reserved hole is located on the second support structure, and the second casting structure is cast and filled into the second reserved hole, so that the second support structure is connected to the base.

[0009] The third fixed hinge node also includes a third embedded part, a third reserved hole, and a third casting structure. The third embedded part is located on the base, the third reserved hole is located on the side of the retaining wall facing the base, and the third casting structure is cast and filled into the third reserved hole.

[0010] In one embodiment, the connection structure further includes a reinforcing rib, which is disposed in the first reserved hole, the second reserved hole and / or the third reserved hole, and the reinforcing rib is in contact with the first embedded part and is arranged perpendicular to each other.

[0011] In one embodiment, a pad structure is provided between the first support structure and the retaining wall; and / or, a first pad structure is provided between the second support structure and the base, and a second pad structure is provided between the retaining wall and the base.

[0012] In one embodiment, the first reserved hole extends from the side of the retaining wall facing the first supporting structure to the side of the retaining wall away from the first supporting structure.

[0013] In one embodiment, the retaining wall is further provided with pre-reserved perforations.

[0014] In one embodiment, the second support structure has an inspection port on the side facing away from the retaining wall.

[0015] In one embodiment, the base extends along its length and is provided with at least two base beams. The retaining wall is provided with a first positioning groove corresponding to the base beam, and the second support structure is provided with a second positioning groove corresponding to the base beam. The base beam is engaged with the first positioning groove and the second positioning groove.

[0016] In one embodiment, the base extends along its width direction and is provided with a first limiting block and a second limiting block, the first limiting block abutting against the side wall of the retaining wall, and the second limiting block abutting against the side wall of the second supporting structure.

[0017] In one embodiment, the base is provided with a first trapezoidal tongue and groove structure on both sides along its width direction, the retaining wall is provided with a second trapezoidal tongue and groove structure on both sides along its width direction, and the second support structure is provided with a third trapezoidal tongue and groove structure on both sides along its width direction.

[0018] The technical solution of this utility model involves assembling a retaining wall onto a base and adding a support structure to support the retaining wall. The support structure has a first support structure extending along one side of the retaining wall and a second support structure extending along the base. A connecting structure is also added, including a first fixed hinge node for connecting the first support structure and the retaining wall, a second fixed hinge node for connecting the second support structure and the base, and a third fixed hinge node for connecting the base and the retaining wall. Each fixed hinge node includes an embedded part, a reserved hole, and a casting structure. The embedded part is fixedly mounted on one component, and the reserved hole is located on another component for alignment with the embedded part. The casting structure fills the reserved hole to form a hinged connection after curing. This allows the support structure to support the retaining wall, enhancing the retaining wall's resistance to lateral forces and reducing safety hazards. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A structural schematic diagram of an embodiment of the prefabricated retaining wall provided by this utility model; Figure 2 A top view of an embodiment of the base in the prefabricated retaining wall provided by this utility model; Figure 3 A side view of an embodiment of the base in the prefabricated retaining wall provided by this utility model; Figure 4 A side view of an embodiment of the prefabricated retaining wall provided by this utility model; Figure 5 A structural schematic diagram of an embodiment of the prefabricated retaining wall provided by this utility model from another perspective; Figure 6 A schematic diagram of the structure of a support body in an embodiment of the prefabricated retaining wall provided by this utility model.

[0021] Explanation of icon numbers: 100. Prefabricated retaining wall; 10. Base; 101. Base plate; 11. First limiting block; 12. Second limiting block; 102. Base beam; 20. Retaining wall; 201. Retaining wall plate; 202. Retaining wall beam; 21. Reserved perforation; 22. First positioning groove; 30. Support body; 301. Support plate; 302. Support beam; 31. First support structure; 32. Second support structure; 321. Inspection port; 322. Second positioning groove; 40. Connecting structure; 41. First embedded part; 42. First reserved hole; 43. First cast-in-place structure; 44. Second embedded part; 45. Second reserved hole; 46. Second cast-in-place structure; 47. Third embedded part; 48. Third reserved hole; 49. Third cast-in-place structure; 50. Reinforcing rib; 51. First cushion layer structure; 52. Second cushion layer structure; 53. Pad plate structure; 61. First trapezoidal tongue and groove structure; 62. Second trapezoidal tongue and groove structure; 63. Third trapezoidal tongue and groove structure.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] Prefabricated construction refers to a construction method in which materials are prefabricated in a factory and then connected and installed on site. Compared with traditional construction methods, prefabricated construction greatly reduces manual labor and on-site wet work.

[0027] Most existing prefabricated retaining walls consist of a precast base slab and a precast retaining wall. The precast base slab is equipped with slots and tenons, and connecting bolts are pre-embedded in the precast base slab so that the precast retaining wall and the precast base slab can be connected into an integral retaining wall structure by connecting bolts and connecting nuts. Grouting material is also poured into the reserved holes in the precast retaining wall to protect the connecting bolts.

[0028] However, the heavy precast retaining wall is fixed to the base plate by bolts and lacks side support components, resulting in insufficient overall stability and the possibility of overturning, which poses a safety hazard.

[0029] This utility model proposes a prefabricated retaining wall 100. Please refer to [link / reference]. Figure 1 In one embodiment of this utility model, the prefabricated retaining wall 100 includes: Base 10; Retaining wall 20, the retaining wall 20 is assembled on the base 10; Support body 30, having a first support structure 31 extending along one side of retaining wall 20 and a second support structure 32 extending along base 10; and The connecting structure 40 includes a first fixed hinge node for connecting the first support structure 31 and the retaining wall 20, a second fixed hinge node for connecting the second support structure 32 and the base 10, and a third fixed hinge node for connecting the base 10 and the retaining wall 20. Each fixed hinge node includes an embedded part, a reserved hole, and a casting structure. The embedded part is fixed on one component, the reserved hole is on another component for alignment with the embedded part, and the casting structure fills the reserved hole to form a hinged connection after curing.

[0030] Specifically, the first fixed hinge node includes a first embedded part 41, a first reserved hole 42, and a first cast-in-place structure 43. The first embedded part 41 is located on the first support structure 31, the first reserved hole 42 is located on the retaining wall 20, and the first cast-in-place structure 43 is cast and filled into the first reserved hole 42, thereby connecting the first support structure 31 and the retaining wall 20. The second fixed hinge node includes a second embedded part 44, a second reserved hole 45, and a second cast-in-place structure 46. The second embedded part 44 is located on the base 10, the second reserved hole 45 is located on the second support structure 32, and the second cast-in-place structure 46 is cast and filled into the second reserved hole 45, thereby connecting the second support structure 32 and the base 10.

[0031] In one embodiment, the third fixed hinge node includes a third embedded part 47, a third reserved hole 48, and a third casting structure 49. The third embedded part 47 is provided on the base 10, the third reserved hole 48 is provided on the side of the retaining wall 20 facing the base 10, and the third casting structure 49 is cast and filled into the third reserved hole 48.

[0032] The third embedded part 47 is pre-fixed on the base 10, and the third reserved hole 48 is opened at the bottom of the retaining wall 20 to provide a space channel for pouring. The third pouring structure 49 fills the third reserved hole 48 by pouring on site, directly connecting the retaining wall 20 and the base 10 into a whole. This setting strengthens the direct connection between the retaining wall 20 and the base 10, and the embedded part is locked by the rigid filling body, effectively transferring the soil pressure borne by the retaining wall 20 to the base 10 and preventing horizontal displacement of the bottom of the retaining wall 20.

[0033] The base 10 provides stable foundation support to ensure that the retaining wall can withstand soil pressure and prevent settlement. The retaining wall 20 is assembled on the base 10 to directly block soil erosion or landslides, thus achieving the function of soil retention.

[0034] In one embodiment, the support body 30 has an overall shape resembling the number 7. The first support structure 31 of the support body 30 extends along one side of the retaining wall 20 to enhance the retaining wall 20's resistance to lateral forces; the second support structure 32 of the support body 30 extends along the base 10 to distribute the load and improve overall stability.

[0035] The first fixed hinge node includes a first embedded part 41, a first reserved hole 42, and a first cast-in-place structure 43. The first embedded part 41 is set on the first support structure 31, the first reserved hole 42 is set on the retaining wall 20, and the first cast-in-place structure 43 is cast to fill the hole, so that the first support structure 31 and the retaining wall 20 are firmly connected, ensuring the force transmission and integrity between the first support structure 31 and the retaining wall 20.

[0036] The second fixed hinge node includes a second embedded part 44, a second reserved hole 45, and a second cast-in-place structure 46. The second embedded part 44 is provided on the base 10, the second reserved hole 45 is provided on the second support structure 32, and the second cast-in-place structure 46 is cast to fill the hole, so that the second support structure 32 is tightly connected to the base 10, providing reliable anchoring and anti-slip function.

[0037] In one embodiment, each embedded part is a BFRP (Bio-Fluorescent Reinforced Polymer) bar. BFRP is a new type of non-metallic composite material, known for its lightweight, high strength, and corrosion resistance. Each cast-in-place structure can be made of CGM (Cemented Mushroom Grout). CGM grout is a building material formulated with high-strength materials and cement as binders, supplemented with substances that promote high fluidity, micro-expansion, and anti-segregation. It possesses characteristics such as early strength, high strength, micro-expansion, and self-leveling properties. After the CGM grout has hardened, the joint ends between the base 10 and the retaining wall 20 are sealed with weather-resistant adhesive.

[0038] The first embedded part 41 and the second embedded part 44 are inserted into the corresponding first reserved hole 42 and second reserved hole 45, and then CGM grouting material is injected on site, so that the base 10, retaining wall 20 and support body 30 form a fixed hinge node between each other, and the whole forms a stable and reliable three-hinged rigid frame structure force system.

[0039] The base 10, retaining wall 20, and support 30 are all made of sea sand concrete. Sea sand concrete uses sea sand as fine aggregate. While sea sand has a high chloride ion content that corrodes traditional steel reinforcement, the corrosive effect can be avoided when BFRP (bonded reinforced plastic) bars are used instead of traditional steel reinforcement in the embedded parts.

[0040] The technical solution of this utility model involves assembling the retaining wall 20 onto the base 10 and adding a support body 30 to support the retaining wall 20. The support body 30 has a first support structure 31 extending along one side of the retaining wall 20 and a second support structure 32 extending along the base 10. A connecting structure 40 is also added, which includes a first fixed hinge node for connecting the first support structure 31 and the retaining wall 20, a second fixed hinge node for connecting the second support structure 32 and the base 10, and a third fixed hinge node for connecting the base 10 and the retaining wall 20. Each fixed hinge node includes an embedded part, a reserved hole, and a casting structure. The embedded part is fixed on one component, and the reserved hole is located on another component for alignment with the embedded part. The casting structure fills the reserved hole to form a hinged connection after curing. This allows the support body 30 to support the retaining wall 20, enhances the lateral resistance of the retaining wall 20, and reduces safety hazards.

[0041] This utility model utilizes embedded parts and cast-in-place structures to create a fixed hinge node, enabling the prefabricated retaining wall 100 to achieve lightweight construction through prefabricated base 10, prefabricated retaining wall 20, and prefabricated support 30, thus facilitating transportation and hoisting. The fixed hinge node has relatively low requirements for construction precision and is durable, maintainable, and replaceable.

[0042] Furthermore, the connecting structure 40 also includes a reinforcing rib 50, which is provided in the first reserved hole 42, the second reserved hole 45 and / or the third reserved hole 48. The reinforcing rib 50 is in contact with the first embedded part 41 and is arranged perpendicular to each other.

[0043] Among them, the reinforcing rib 50 is a U-shaped rib. The U-shaped rib is used to wrap the first embedded part 41, the second embedded part 44, or the third embedded part 47. After the embedded part hardens in the cast structure, the displacement along the embedded part direction is locked, wherein the reinforcing rib 50 on the embedded hole can restrict the displacement perpendicular to the embedded part direction.

[0044] In one embodiment, please refer to Figure 1The first support structure 31 has a pad structure 53 between it and the retaining wall 20; and / or, the second support structure 32 has a first pad structure 51 between it and the base 10, and the retaining wall 20 and the base 10 have a second pad structure 52.

[0045] The pad structure 53 is disposed between the first support structure 31 and the retaining wall 20 to disperse the local stress of the support 30 on the retaining wall 20 and prevent the concrete surface layer from being damaged under the preload. The first pad structure 51 is disposed between the second support structure 32 and the base 10 to evenly distribute the concentrated load transmitted from the support 30 to the base 10, thereby reducing stress concentration in the base 10.

[0046] The first cushioning structure 51 and the second cushioning structure 52 can both include cushion blocks and PE rods. The cushioning structure 53 can be a polystyrene board.

[0047] To ensure that the first cast structure 43 is filled tightly and without gaps in the retaining wall 20, the first reserved hole 42 extends from the side of the retaining wall 20 facing the first supporting structure 31 to the side of the retaining wall 20 away from the first supporting structure 31.

[0048] The first reserved hole 42 extends from the side of the retaining wall 20 facing the first supporting structure 31 to the side of the first supporting structure 31, so that the CGM grouting material is injected from the side away from the first supporting structure 31, ensuring that the first cast structure 43 is filled in the retaining wall 20 densely without gaps.

[0049] In one embodiment, please refer to Figure 1 The second reserved hole 45 extends from the side of the second support structure 32 facing the base 10 to the side of the second support structure 32 away from the retaining wall 20, so that the CGM grouting material can be injected from the side of the second support structure 32 away from the retaining wall 20, ensuring that the second cast structure 46 is filled in the second support structure 32 densely without gaps.

[0050] Similarly, the third reserved hole 48 extends from the side of the retaining wall 20 facing the base 10 to the side of the retaining wall 20 away from the second support structure 32, so that the CGM grouting material can be injected from the side of the retaining wall 20 away from the second support structure 32, ensuring that the third cast structure 49 is filled in the retaining wall 20 tightly without gaps.

[0051] For easy drainage, please refer to Figure 1 , Figure 4 and Figure 5 The retaining wall 20 is also provided with a reserved perforation 21. A rigid waterproof sleeve is embedded in the reserved perforation 21 to facilitate drainage.

[0052] For ease of inspection, please refer to Figure 1 and Figure 6The second support structure 32 has an inspection port 321 on the side opposite to the retaining wall 20. The inspection port 321 can be covered with a cover. When maintenance is required, the cover is opened and then the inspection is carried out through the inspection port 321.

[0053] To limit the lateral displacement of the retaining wall 20 and the support 30 relative to the base 10, and to ensure that the retaining wall 20, the support 30, and the base 10 are installed aligned with each other, please refer to [link to relevant documentation]. Figure 1 , Figure 2 , Figure 4 and Figure 6 The base 10 extends along its length and is provided with at least two base beams 102. The retaining wall 20 is provided with a first positioning groove 22 corresponding to the base beams 102, and the second support structure 32 is provided with a second positioning groove 322 corresponding to the base beams 102. The base beams 102 are engaged with the first positioning groove 22 and the second positioning groove 322.

[0054] In one embodiment, please refer to Figure 2 The base 10 has two base beams 102 evenly distributed. Please refer to [link / reference]. Figure 1 , Figure 3 and Figure 6 The retaining wall 20 is provided with two first positioning grooves 22, and the second support structure 32 is provided with two second positioning grooves 322 corresponding to the first base beam 102.

[0055] In one embodiment, the base 10 is provided with at least two base beams 102 instead of a single base beam 102, in order to reduce the possibility of overturning caused by a single base beam 102 transmitting force. The support body 30 is provided with at least two support beams 302, and the retaining wall 20 is also provided with at least two retaining wall beams 202, in order to avoid the possibility of overturning caused by a single three-hinged rigid frame transmitting force.

[0056] Specifically, refer to Figure 1 , Figure 2 and Figure 3 The base 10 also includes a base plate 101, and at least two base beams 102 are provided on the base plate 101. The base beams 102 are provided with a plurality of first embedded parts 41.

[0057] Reference Figure 1 , Figure 4 and Figure 5 The retaining wall 20 includes a retaining wall plate 201 and at least two retaining wall beams 202. The at least two retaining wall beams 202 are provided on the retaining wall plate 201. The retaining wall beams 202 are provided with a plurality of first reserved holes 42 and a plurality of third reserved holes 48.

[0058] Reference Figure 1 and Figure 6The support body 30 includes a support plate 301 and at least two support beams 302. The at least two support beams 302 are provided on the support plate 301. The first support structure 31 of the support beam 302 is provided with a first embedded part 41, and the second support structure 32 of the support beam 302 is provided with a second reserved hole 45.

[0059] With this configuration, soil pressure is transmitted to retaining wall plate 201, the force on retaining wall plate 201 is transmitted to retaining wall beam 202, and retaining wall beam 202 transmits the force to support beam 302 and base beam 102 through two fixed hinge nodes at the top and bottom. The force transmitted to support beam 302 is then transmitted to base beam 102 through a fixed hinge node at the bottom of support beam 302, and the force on base beam 102 is transmitted to base plate 101. Finally, base plate 101 transmits the force to the foundation.

[0060] In one embodiment, the base 10 extends along its width direction and is provided with a first limiting block 11 and a second limiting block 12. The first limiting block 11 abuts against the side wall of the retaining wall 20, and the second limiting block 12 abuts against the side wall of the second supporting structure 32.

[0061] In one embodiment, the base 10 is provided with a first trapezoidal tongue and groove structure 61 along both sides of its width direction to facilitate splicing between two adjacent bases 10; the retaining wall 20 is provided with a second trapezoidal tongue and groove structure 62 along both sides of its width direction to facilitate splicing between two adjacent retaining walls 20; the second support structure 32 is provided with a third trapezoidal tongue and groove structure 63 along both sides of its width direction to facilitate splicing between two adjacent support bodies 30.

[0062] The installation steps of the prefabricated retaining wall 100 of this utility model are as follows: First, the base 10 is hoisted to the predetermined position. Then, pads and PE rods are arranged on the base 10 at the installation positions corresponding to the support 30 and the retaining wall 20, and a 20 mm thick M15 cement mortar pad layer is poured. Polystyrene boards are also pasted on the support 30 at the installation positions corresponding to the retaining wall 20.

[0063] After the above preparations are completed, first lift the retaining wall 20 and align the third reserved hole 48 at the bottom of the retaining wall 20 with the third embedded part 47 on the base 10. Then, lift the support body 30, align the second reserved hole 45 of the support body 30 with the second embedded part 44 on the base 10, and align the first embedded part 41 of the support body 30 with the first reserved hole of the retaining wall 20. Next, following the bottom-up principle, pour C40 grade CGM grout into the third reserved hole 48, the second reserved hole 45, and the first reserved hole 42 in sequence. Continue until the CGM grout hardens. Finally, seal the joints between the support body 30 and the retaining wall 20, between the support body 30 and the base 10, and between the retaining wall 20 and the base 10 with weather-resistant sealant.

[0064] The above are merely exemplary embodiments of this utility model and do not limit the scope of protection of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A prefabricated retaining wall, characterized in that, include: Base; A retaining wall, which is assembled on the base; A support having a first support structure extending along one side of the retaining wall and a second support structure extending along the base; as well as The connection structure includes a first fixed hinge node for connecting the first support structure and the retaining wall, a second fixed hinge node for connecting the second support structure and the base, and a third fixed hinge node for connecting the base and the retaining wall; wherein each fixed hinge node includes an embedded part, a reserved hole, and a casting structure, the embedded part is fixedly disposed on one component, the reserved hole is disposed on another component for alignment with the embedded part, and the casting structure fills the reserved hole to form a hinged connection after curing.

2. The prefabricated retaining wall as described in claim 1, characterized in that, The first fixed hinge node includes a first embedded part, a first reserved hole, and a first casting structure. The first embedded part is located in the first support structure, the first reserved hole is located in the retaining wall, and the first casting structure is cast and filled in the first reserved hole, so that the first support structure is connected to the retaining wall. The second fixed hinge node also includes a second embedded part, a second reserved hole, and a second casting structure. The second embedded part is provided on the base, the second reserved hole is provided on the second support structure, and the second casting structure is cast and filled into the second reserved hole, so that the second support structure is connected to the base. The third fixed hinge node includes a third embedded part, a third reserved hole, and a third casting structure. The third embedded part is located on the base, the third reserved hole is located on the side of the retaining wall facing the base, and the third casting structure is cast and filled into the third reserved hole.

3. The prefabricated retaining wall as described in claim 2, characterized in that, The connection structure further includes reinforcing ribs, which are disposed in the first reserved hole, the second reserved hole and / or the third reserved hole, and the reinforcing ribs are in contact with the first embedded part and are arranged perpendicular to each other.

4. The prefabricated retaining wall as described in claim 2, characterized in that, A pad structure is provided between the first supporting structure and the retaining wall; Alternatively, the second support structure has a first cushion layer structure between it and the base, and the retaining wall has a second cushion layer structure between it and the base.

5. The prefabricated retaining wall as described in claim 2, characterized in that, The first reserved hole extends from the side of the retaining wall facing the first supporting structure to the side of the retaining wall away from the first supporting structure.

6. The prefabricated retaining wall as described in claim 1, characterized in that, The retaining wall is also equipped with pre-reserved perforations.

7. The prefabricated retaining wall as described in claim 1, characterized in that, The second support structure has an inspection port on the side facing away from the retaining wall.

8. The prefabricated retaining wall as described in any one of claims 1 to 7, characterized in that, The base extends along its length and is provided with at least two base beams. The retaining wall is provided with a first positioning groove corresponding to the base beam, and the second support structure is provided with a second positioning groove corresponding to the base beam. The base beam is engaged with the first positioning groove and the second positioning groove.

9. The prefabricated retaining wall as described in any one of claims 1 to 7, characterized in that, The base extends along its width and is provided with a first limiting block and a second limiting block. The first limiting block abuts against the side wall of the retaining wall, and the second limiting block abuts against the side wall of the second supporting structure.

10. The prefabricated retaining wall as described in any one of claims 1 to 7, characterized in that, The base has a first trapezoidal tongue and groove structure along its two sides in the width direction, the retaining wall has a second trapezoidal tongue and groove structure along its two sides in the width direction, and the second support structure has a third trapezoidal tongue and groove structure along its two sides in the width direction.

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