Retaining wall structure

Abstract

The application relates to the technical field of riverway engineering, in particular to a retaining wall structure, which comprises a retaining wall body, a drainage plate group and a drainage pipe. The retaining wall body comprises a bottom structure and a side structure, the bottom structure is connected with the bottom of the side structure, and the side structure and the bottom structure jointly define a backfill space for accommodating filling soil. The drainage plate group comprises a first drainage plate and a second drainage plate, the first drainage plate is arranged between the side structure and the backfill space, and the second drainage plate is arranged between the bottom structure and the backfill space. A water passing gap is formed between the first drainage plate and the side structure. The drainage pipe is arranged on the side structure. The retaining wall body forms a stable backfill space through the bottom structure and the side structure, provides reliable support for the filling soil, guarantees the bearing capacity of the retaining wall foundation, the first drainage plate and the second drainage plate are arranged correspondingly at the bottom structure and the side structure, double drainage coverage of the bottom and the side of the backfill space is realized, and the water passing gap and the drainage pipe are matched to build a complete drainage path.

Description

Technical Field

[0004] This application relates to the field of river engineering technology, and in particular to a retaining wall structure. Background Technology

[0006] In slope and roadbed support projects, traditional retaining wall structures have difficulty effectively draining internal water after backfilling. The accumulated water significantly increases the lateral earth pressure on the retaining wall, which can easily cause deformation, cracking, or even instability. Furthermore, existing retaining walls have limited drainage methods and poor drainage channels, making it impossible to quickly and smoothly remove water from the backfilled area, thus affecting the safety and durability of the retaining wall. Summary of the Invention

[0008] To address the aforementioned technical problems, this application provides a retaining wall structure.

[0009] In a first aspect, this application provides a retaining wall structure, comprising:

[0010] The retaining wall body includes a bottom structure and a side structure. The bottom structure is connected to the bottom of the side structure. The side structure extends upward to a certain height and together with the bottom structure defines a backfill space for accommodating fill soil.

[0011] A drainage board assembly includes a first drainage board and a second drainage board. The first drainage board is disposed between the side structure and the backfill space, and the second drainage board is disposed between the bottom structure and the backfill space. The top of the second drainage board is lower than the top of the side structure, and a water inlet is formed between the top of the second drainage board and the side structure. A water passage gap is formed between the first drainage board and the side structure.

[0012] A drain pipe is installed on the side structure, with its first end and second end communicating with the water passage gap and the outside, respectively.

[0013] Optionally, the first side of the first drainage board is disposed facing the backfill space, the second side of the first drainage board is disposed facing the side structure, and the surface of the second side of the first drainage board is provided with first protrusions, and a water passage is formed between any two adjacent first protrusions, and multiple water passages are combined to form the water passage gap.

[0014] Optionally, a first waterproof membrane is provided on the first side of the first drainage board.

[0015] Optionally, the protruding end of the first protrusion structure is a planar structure, and the protruding end of the first protrusion structure is parallel to the plane of the side structure facing the backfill space, and is fitted to the side structure.

[0016] Optionally, first buffer grooves are arranged at intervals on the surface of the second side of the first drainage plate at positions corresponding to the water flow channel, and the first buffer grooves are arranged between any two adjacent first protrusion structures.

[0017] Optionally, the edge of the first buffer groove smoothly transitions to the surface of the second side of the first drainage plate.

[0018] Optionally, multiple sets of the drain pipes are arranged vertically, and at least one set of the drain pipes has its first end connected to the connection between the first drain plate and the second drain plate.

[0019] Optionally, the second end of the drain pipe is lower than its first end.

[0020] Optionally, multiple sets of the drain pipes are arranged in a direction perpendicular to their extension. The retaining wall structure also includes a connecting pipe, the extension direction of which is perpendicular to the extension direction of the drain pipes, and the multiple sets of drain pipes are connected. The outer wall of the connecting pipe has permeable holes that communicate with its interior.

[0021] Optionally, the second drainage board is a permeable structure, with the first side of the second drainage board facing the backfill space and the second side of the second drainage board facing the bottom structure. Second protrusions are arranged on the surface of the second side of the second drainage board, and a water passage is formed between any two adjacent second protrusions. Multiple water passages are combined to form the water passage gap.

[0022] The technical solution provided in this application has the following advantages compared with the prior art:

[0023] The retaining wall structure provided in this application forms a stable backfill space through the bottom and side structures, providing reliable support for the backfill and ensuring the bearing capacity of the retaining wall foundation. The first and second drainage boards are respectively set for the bottom and side structures, achieving double drainage coverage of the bottom and sides of the backfill space. Combined with the top water inlet design, water accumulated in different locations in the backfill can quickly flow into the drainage system. The cooperation between the water passage gap and the drainage pipe constructs a complete drainage path of "collection-guidance-discharge", avoiding water stagnation in the backfill space, significantly reducing the density of the backfill, reducing the lateral pressure on the retaining wall body, and improving the stability of the retaining wall structure. The top of the second drainage board is lower than the top of the side structure, which ensures water intake efficiency and prevents backfill from flowing out of the water inlet, thus taking into account both drainage and soil retention functions. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the retaining wall structure described in the embodiments of this application;

[0028] Figure 2 This is a schematic diagram of the structure of the second side of the first drainage board described in an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the retaining wall structure described in the embodiments of this application;

[0030] Figure 4 This is a schematic diagram of the retaining wall structure described in the embodiments of this application.

[0031] Among them, 11, bottom structure; 12, side structure; 21, first drainage board; 211, first protruding structure; 212, first waterproof membrane; 213, first buffer groove; 22, second drainage board; 31, drainage pipe; 32, connecting pipe; 4, backfill. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0035] Based on this, this embodiment provides a retaining wall structure. The retaining wall body forms a stable backfill space through the bottom structure and side structure, providing reliable support for the backfill and ensuring the bearing capacity of the retaining wall foundation. The first drainage board and the second drainage board are respectively set for the bottom structure and the side structure, realizing double drainage coverage of the bottom and sides of the backfill space. Combined with the top water inlet design, water accumulated in different locations in the backfill can quickly flow into the drainage system. The cooperation between the water passage gap and the drainage pipe constructs a complete drainage path of "collection-guidance-discharge", avoiding water stagnation in the backfill space, significantly reducing the backfill density, reducing the lateral pressure on the retaining wall body, and improving the stability of the retaining wall structure. The top of the second drainage board is lower than the top of the side structure, which ensures water intake efficiency and prevents backfill from flowing out of the water inlet, taking into account both drainage and soil retention functions. The following is a detailed description through specific embodiments:

[0036] Reference Figure 1 and Figure 2 As shown, the retaining wall structure provided in this embodiment includes a retaining wall body, a drainage board assembly, and a drainage pipe 31.

[0037] The retaining wall body includes a bottom structure 11 and a side structure 12. The bottom structure 11 is connected to the bottom of the side structure 12. The side structure 12 extends upward to a set height and together with the bottom structure 11 defines a backfill space for accommodating the fill soil 4.

[0038] The drainage board assembly includes a first drainage board 21 and a second drainage board 22. The first drainage board 21 is disposed between the side structure 12 and the backfill space, and the second drainage board 22 is disposed between the bottom structure 11 and the backfill space. The top of the second drainage board 22 is lower than the top of the side structure 12, and an inlet is formed between the top of the second drainage board 22 and the side structure 12. A water passage gap is formed between the first drainage board 21 and the side structure 12.

[0039] The drain pipe 31 is installed on the side structure 12, and the first end and the second end of the drain pipe 31 are respectively connected to the water passage gap and the outside.

[0040] The retaining wall structure provided in this embodiment forms a stable backfill space through the bottom structure 11 and the side structure 12, providing reliable support for the fill 4 and ensuring the bearing capacity of the retaining wall foundation. The first drainage board 21 and the second drainage board 22 are respectively set for the side structure 12 and the bottom structure 11, realizing double drainage coverage of the bottom and sides of the backfill space. Combined with the top water inlet design, water accumulated in different locations in the fill 4 can quickly flow into the drainage system. The cooperation between the water passage gap and the drainage pipe 31 constructs a complete drainage path of "collection-guidance-discharge", avoiding water stagnation in the backfill space, significantly reducing the density of the fill 4, reducing the lateral pressure on the retaining wall body, and improving the stability of the retaining wall structure. The top of the second drainage board 22 is lower than the top of the side structure 12, which not only ensures water intake efficiency but also prevents the fill 4 from flowing out of the water inlet, taking into account both drainage and soil retention functions.

[0041] Continue to refer to Figure 1 As shown, the first side of the first drainage plate 21 is set towards the backfill space, and the second side of the first drainage plate 21 is set towards the side structure 12. The surface of the second side of the first drainage plate 21 is arranged with first protrusion structures 211. A water passage is formed between any two adjacent first protrusion structures 211, and multiple water passages are combined to form a water passage gap.

[0042] The first protruding structure 211 forms a regular water passage between the first drainage plate 21 and the side structure 12, replacing the traditional irregular gap, allowing water to flow more smoothly, reducing water flow resistance, and improving drainage efficiency. The design of the first protruding structure 211 maintains a stable gap between the first drainage plate 21 and the side structure 12, avoiding blockage of the water passage due to the pressure of the backfill 4, and ensuring the long-term effective operation of the drainage system. The first protruding structure 211 can also enhance the structural strength of the first drainage plate 21, preventing it from deforming under the pressure of the backfill 4, and improving the reliability of the connection between the first drainage plate 21 and the retaining wall body.

[0043] refer to Figure 1 The first drainage board 21 has a first waterproof membrane 212 on its first side, wherein the first waterproof membrane 212 may be a graphite carbon felt waterproof membrane.

[0044] The first waterproof membrane 212 is set towards the backfill space, which can effectively block the mud, sand and particles in the backfill soil 4 from entering the water flow channel, avoid the blockage of the drainage channel from the source, and ensure smooth drainage. The first waterproof membrane 212 does not affect the infiltration of water into the first drainage board 21, and at the same time prevents water from infiltrating back into the interior of the retaining wall body, reducing the erosion of the retaining wall body by water and extending the service life of the retaining wall.

[0045] In some embodiments, the protruding end of the first protrusion structure 211 is a planar structure, and the protruding end of the first protrusion structure 211 is parallel to the plane of the side structure 12 facing the backfill space, and is fitted to the side structure 12.

[0046] The planar protruding end of the first protruding structure 211 fits into the side structure 12, increasing the contact area between the first drainage plate 21 and the retaining wall body, improving connection stability, and preventing the first drainage plate 21 from shifting due to the lateral pressure of the backfill 4. The fitting arrangement ensures the sealing and integrity of the water flow channel, preventing water from leaking through the gap between the first drainage plate 21 and the side structure 12, ensuring that all accumulated water is discharged through the designated flow channel, and improving drainage efficiency. The planar structure is parallel to the side structure 12, making the force more uniform, reducing local stress concentration, protecting the first drainage plate 21 and the retaining wall body from damage, and also increasing the contact area between the planar structure and the side structure 12, improving the stability of the connection between the two.

[0047] In some embodiments, first buffer grooves 213 are arranged at intervals on the surface of the second side of the first drainage plate 21 at positions corresponding to the water flow channel, and the first buffer grooves 213 are arranged between any two adjacent first protrusion structures 211.

[0048] The first buffer trough 213 is located between adjacent first protrusions 211, which can slow down the water flow speed, reduce the impact of the water flow on the water channel, and avoid long-term water flow impact causing wear and deformation of the channel. The first buffer trough 213 can temporarily store part of the water flow, play a diversion role, avoid a large amount of water accumulation in a short period of time causing drainage congestion, and improve the impact resistance of the drainage system. The design of the first buffer trough 213 increases the volume of the water channel, further improving the drainage capacity and adapting to rainy seasons or scenarios with abundant groundwater.

[0049] Continue to refer to Figure 2 The edge of the first buffer groove 213 smoothly transitions to the surface of the second side of the first drainage plate 21.

[0050] The edge of the first buffer trough 213 and the surface of the first drainage plate 21 transition smoothly, avoiding sharp corners, steps and other structures, reducing water flow resistance, and preventing water from stagnating or generating vortices at the transition point; the smooth transition structure reduces the probability of sediment deposition at the edge of the first buffer trough 213, further improving the anti-clogging ability of the drainage system; at the same time, it avoids stress concentration, improving the overall structural strength and service life of the first buffer trough 213 and the first drainage plate 21.

[0051] In some embodiments, multiple sets of drain pipes 31 are arranged in the vertical direction, and at least one set of drain pipes 31 has its first end connected to the connection between the first drain plate 21 and the second drain plate 22.

[0052] Multiple vertically arranged drainage pipes 31 achieve multi-level drainage, which can target the drainage of water at different heights in the backfill space, preventing water from the upper layer from seeping downwards and causing excessive pressure at the bottom. The first end of the drainage pipe 31 is connected to the first drainage board 21 and the second drainage board 22, precisely connecting to the water flow collection point of the drainage board, maximizing water collection and improving drainage efficiency. The multi-level drainage design disperses water flow pressure, preventing a single drainage pipe 31 from operating under overload, and improving the stability and reliability of the drainage system.

[0053] In some embodiments, the second end of the drain pipe 31 is lower than its first end.

[0054] The second end of the drainage pipe 31 is lower than its first end, forming a natural slope. Gravity is used to accelerate the discharge of water without the need for additional power, thus improving drainage efficiency. Gravity diversion can reduce water stagnation in the pipe, reduce the probability of sediment deposition, and reduce the risk of pipe blockage. The inclined setting can also prevent external rainwater and debris from entering the retaining wall through the drainage pipe 31 in the reverse direction, ensuring the stability of the internal environment of the retaining wall and drainage system.

[0055] refer to Figure 1 , Figure 3 and Figure 4 As shown, multiple sets of drainage pipes 31 are arranged in a direction perpendicular to their extension. The retaining wall structure also includes a connecting pipe 32, the extension direction of which is perpendicular to the extension direction of the drainage pipes 31, and the multiple sets of drainage pipes 31 are connected. The outer wall of the connecting pipe 32 has a permeable hole that communicates with its interior.

[0056] Multiple sets of horizontally arranged drainage pipes 31, together with connecting pipes 32, form a three-dimensional drainage network, realizing all-round drainage of the backfill space in both the horizontal and vertical directions, with a wider coverage and more uniform drainage. The connecting pipes 32 connect the drainage pipes 31, which can balance the water flow pressure in each pipe, prevent some pipes from being overloaded due to excessive water accumulation, and improve the overall stability of the drainage system. The permeable holes on the outer wall of the connecting pipes 32 can collect the scattered water accumulation in the surrounding backfill soil 4, further expanding the water collection range, improving the overall drainage capacity, and enhancing the anti-clogging redundancy of the drainage system.

[0057] The outer wall of the connecting pipe 32 can be a polyethylene plastic filter screen, which provides a certain support while also allowing water from the backfill space and water passage gap to be introduced into its interior and then discharged through the drain pipe 31.

[0058] Furthermore, the outer wall of the connecting pipe 32 is composed of multiple layers of polyethylene plastic filter screens. The outer polyethylene plastic filter screens have densely packed, small-diameter pores, while the inner polyethylene plastic filter screens have loosely packed, larger-diameter pores. This facilitates the introduction of moisture from outside the connecting pipe 32 into the connecting pipe 32, and then the moisture is drawn from the connecting pipe 32 along a path perpendicular to the... Figure 1 The paper is conveyed in the direction of the paper surface.

[0059] In some embodiments, the second drainage board 22 is a permeable structure. The first side of the second drainage board 22 is disposed towards the backfill space, and the second side of the second drainage board 22 is disposed towards the bottom structure 11. Second protrusions are arranged on the surface of the second side of the second drainage board 22. A water passage is formed between any two adjacent second protrusions, and multiple water passages are combined to form a water passage gap.

[0060] The second drainage board 22 adopts a permeable structure, which can quickly absorb the water accumulated on the side of the backfill space. Combined with the water flow channel formed by the second protrusion structure, it constructs an efficient side drainage channel.

[0061] The water passage formed by the second protrusion structure is connected to the water passage gap of the first drainage plate 21, realizing a seamless connection between the bottom and side drainage systems, allowing the accumulated water to form a continuous flow path inside the retaining wall, greatly improving drainage efficiency.

[0062] The raised structure enhances the load-bearing capacity of the second drainage board 22, preventing it from deforming under the pressure of the backfill 4, while maintaining a stable water passage gap to ensure long-term effective side drainage, further reducing the lateral pressure on the retaining wall and improving structural stability.

[0063] In some further embodiments, the second drainage plate 22 has a second protrusion structure on both the first and second sides, and filter cotton is provided on the second protrusion structures on both the first and second sides of the second drainage plate 22, thereby forming a double-sided water passage structure and significantly improving drainage efficiency.

[0064] It should be noted that the first and second surfaces of the first drainage plate 21 are provided with first protrusion structures 211. The first protrusion structures 211 on both sides are arranged alternately. The first protrusion structure 211 on one side forms a first buffer groove 213 at the same position on the other side. That is, after the first protrusion structure 211 protrudes towards the first side of the first drainage plate 21, a first buffer groove 213 will be formed at the corresponding position on the second side, and vice versa.

[0065] The first and second surfaces of the second drainage plate 22 are both provided with second protrusion structures. The second protrusion structures on both sides are arranged alternately. The second protrusion structure on one side forms a second buffer groove at the same position on the other side. That is, after the second protrusion structure protrudes towards the first side of the second drainage plate 22, a second buffer groove will be formed at the corresponding position on the second side, and vice versa.

[0066] In some embodiments, the outer surface of the protruding end of the first protrusion structure 211 is a smooth hemispherical shape, and the inner first buffer groove 213 is also formed with a matching hemispherical groove, thereby forming a smooth protrusion and groove structure on the side of the first drainage plate 21, further reducing the resistance of water flow and improving drainage efficiency.

[0067] The specific implementation method and principle are the same as those in the above embodiments, and can bring the same or similar technical effects. They will not be described in detail here. For details, please refer to the description of the above retaining wall structure embodiments.

[0068] In the description of the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the structure or device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0070] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A retaining wall structure, characterized in that, include: The retaining wall body includes a bottom structure (11) and a side structure (12). The bottom structure (11) is connected to the bottom of the side structure (12). The side structure (12) extends upward to a set height and together with the bottom structure (11) defines a backfill space for accommodating fill soil (4). The drainage board assembly includes a first drainage board (21) and a second drainage board (22). The first drainage board (21) is disposed between the side structure (12) and the backfill space, and the second drainage board (22) is disposed between the bottom structure (11) and the backfill space. The top of the second drainage board (22) is lower than the top of the side structure (12), and an inlet is formed between the top of the second drainage board (22) and the side structure (12). A water passage gap is formed between the first drainage board (21) and the side structure (12). A drain pipe (31) is provided on the side structure (12), and the first end and the second end of the drain pipe (31) are respectively connected to the water passage gap and the outside.

2. The retaining wall structure according to claim 1, characterized in that, The first side of the first drainage board (21) is disposed facing the backfill space, and the second side of the first drainage board (21) is disposed facing the side structure (12). The surface of the second side of the first drainage board (21) is provided with first protrusion structures (211). A water passage is formed between any two adjacent first protrusion structures (211), and multiple water passages are combined to form the water passage gap.

3. The retaining wall structure according to claim 2, characterized in that, The first drainage board (21) has a first waterproof membrane (212) on its first side.

4. The retaining wall structure according to claim 2, characterized in that, The protruding end of the first protruding structure (211) is a planar structure. The protruding end of the first protruding structure (211) is parallel to the plane of the side structure (12) facing the backfill space and is fitted to the side structure (12).

5. The retaining wall structure according to claim 2, characterized in that, On the surface of the second side of the first drainage plate (21), first buffer grooves (213) are arranged at intervals corresponding to the water flow channel. The first buffer grooves (213) are arranged between any two adjacent first protrusions (211).

6. The retaining wall structure according to claim 5, characterized in that, The edge of the first buffer groove (213) smoothly transitions to the surface of the second side of the first drainage plate (21).

7. The retaining wall structure according to claim 1, characterized in that, The drain pipes (31) are arranged in multiple sets in the vertical direction, and at least one set of the drain pipes (31) has its first end connected to the connection between the first drain plate (21) and the second drain plate (22).

8. The retaining wall structure according to claim 7, characterized in that, The second end of the drain pipe (31) is lower than its first end.

9. The retaining wall structure according to claim 7, characterized in that, The drain pipe (31) is arranged in multiple sets along a direction perpendicular to its extension. The retaining wall structure also includes a connecting pipe (32), the extension direction of which is perpendicular to the extension direction of the drain pipe (31), and the multiple sets of drain pipes (31) are connected. The outer wall of the connecting pipe (32) has a permeable hole that communicates with its interior.

10. The retaining wall structure according to claim 1, characterized in that, The second drainage board (22) is a permeable structure. The first side of the second drainage board (22) is set towards the backfill space, and the second side of the second drainage board (22) is set towards the bottom structure (11). The surface of the second side of the second drainage board (22) is provided with second protrusion structures. A water passage is formed between any two adjacent second protrusion structures, and multiple water passages are combined to form the water passage gap.

Images