Box-type retaining wall

Abstract

The utility model belongs to the technical field of highway, railway, municipal bridge and hydraulic engineering construction, and provides a box type retaining wall which comprises a box chamber structure. The box chamber structure comprises a box chamber cantilever plate and a box chamber breast wall, flower grooves are formed in the outer side wall of the box chamber cantilever plate and the outer side wall of the box chamber breast wall, a water drain pipe is arranged in the box chamber cantilever plate, the first end of the water drain pipe extends to the inner side wall of the box chamber cantilever plate, and the second end of the water drain pipe extends to the outer side wall of the box chamber cantilever plate. The water drain pipe is obliquely arranged downwards from the first end to the second end. According to the box-type retaining wall, the ecological planters are formed in the outer sides of the box chamber cantilever plates and the box chamber breast wall, the planters are filled with the planting soil, flowers and plants can be planted, the ecological landscape effect of the outer vertical face of the box-type retaining wall is good, and the environment is beautified. Meanwhile, rainwater on the inner side of the box chamber cantilever plate can flow to the outer side of the box chamber cantilever plate through the water drainage pipe, the effect of supplementing water to plants in the flower groove is achieved, a water supplementing system does not need to be independently arranged, full utilization of the rainwater is achieved, and good economic benefits are achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of highway, railway, municipal bridge and water conservancy engineering construction, and specifically relates to a box-type retaining wall. Background Technology

[0002] The types of retaining walls commonly used in engineering projects include: cantilever retaining walls, gravity retaining walls, buttress retaining walls, and pile-slab retaining walls.

[0003] The aforementioned retaining walls typically have the following defects:

[0004] 1. When the embankment fill height is close to or greater than 5 meters, the height of the cantilever retaining wall cannot meet the requirements;

[0005] 2. When the embankment fill height is close to or greater than 10 meters, gravity retaining walls have high requirements for foundation bearing capacity, occupy a large area, and the wall height is close to or exceeds the limit wall height, so they are not suitable. The wall height of buttress retaining walls also cannot meet the requirements, and the buttress structure has an irregular shape and small space, making it difficult to compact the backfill behind the wall.

[0006] 3. When the embankment fill height is close to or greater than 12 meters, the construction process of the pile-slab retaining wall is more complicated, the durability is poor, and it affects the laying of pipelines in the embankment fill.

[0007] Secondly, when the retaining wall of the roadbed is high, the concrete facade has a poor landscape effect and does not meet the needs of modern construction. Utility Model Content

[0008] In view of the shortcomings of the existing technology, this utility model provides a box-type retaining wall to solve the above-mentioned technical problems.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a box-type retaining wall, comprising a box chamber structure;

[0010] The chamber structure includes a chamber cantilever slab and a chamber breast wall. Flower grooves are provided on the outer wall of the chamber cantilever slab and the outer wall of the chamber breast wall. A drain pipe is provided inside the chamber cantilever slab. The first end of the drain pipe extends to the inner wall of the chamber cantilever slab, and the second end of the drain pipe extends to the outer wall of the chamber cantilever slab. The drain pipe is arranged obliquely downward from the first end to the second end.

[0011] Preferably, a foundation and pile foundation are provided in sequence below the box structure.

[0012] Preferably, the container structure further includes a container top plate, a container back wall, and a container transverse partition. The container cantilever plate is disposed on the container top plate. The container breast wall and container back wall are both disposed below the container top plate. The container breast wall and container back wall are arranged in parallel and spaced apart. The container breast wall and container back wall are both disposed on a support platform. The container transverse partition is disposed between the container breast wall and container back wall.

[0013] Preferably, a plain concrete cushion layer is provided below the pier cap, and the top of the pile extends through the plain concrete cushion layer into the pier cap.

[0014] Preferably, the flower trough is a reinforced concrete flower trough.

[0015] Preferably, a reverse filter layer is provided at the first end hole of the drain pipe.

[0016] Preferably, a water-resistant layer is provided below the filter layer.

[0017] Preferably, a water filter layer is provided on the inner side of the cantilever plate of the chamber.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This utility model provides a box-type retaining wall that incorporates ecological flower troughs on the outer side of the cantilever slab and breast wall of the box chamber. These troughs are filled with planting soil and can be used to grow flowers and grasses, resulting in a beautiful ecological landscape on the exterior of the box-type retaining wall and enhancing the environment. Simultaneously, rainwater from the inner side of the cantilever slab can flow through drainage pipes to the outer side, replenishing the water supply to the plants in the flower troughs. This eliminates the need for a separate water supply system, maximizing the utilization of rainwater and offering significant economic benefits. It also has a wide range of applications. Attached Figure Description

[0020] Figure 1 One of the cross-sectional structural schematic diagrams of a box-type retaining wall provided for an embodiment of this utility model;

[0021] Figure 2 A front view structural diagram of a box-type retaining wall provided for an embodiment of this utility model;

[0022] Figure 3 A second sectional structural schematic diagram of a box-type retaining wall provided for an embodiment of this utility model;

[0023] Figure 4 A top view of a box-type retaining wall provided for an embodiment of this utility model;

[0024] Figure 5 This is a front view structural diagram of the flower trough and related parts of a box-type retaining wall provided for an embodiment of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Container structure; 101. Container cantilever slab; 102. Container breast wall; 103. Container roof slab; 104. Container back wall; 105. Container transverse partition;

[0027] 2. Flower trough;

[0028] 3. Drain pipe;

[0029] 4. Filter layer;

[0030] 5. Filter layer;

[0031] 6. Waterproof layer;

[0032] 7. Platform;

[0033] 8. Pile foundation;

[0034] 9. Plain concrete foundation layer. Detailed Implementation

[0035] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0036] This embodiment provides a box-type retaining wall, including a box structure 1;

[0037] The container structure 1 includes a container cantilever slab 101 and a container breast wall 102. Flower grooves 2 are provided on the outer wall of the container cantilever slab 101 and the outer wall of the container breast wall 102. A drain pipe 3 is provided inside the container cantilever slab 101. The first end of the drain pipe 3 extends to the inner wall of the container cantilever slab 101, and the second end of the drain pipe 3 extends to the outer wall of the container cantilever slab 101. The drain pipe 3 is arranged obliquely downward from the first end to the second end.

[0038] For example, see Figure 1The container structure 1 includes a vertically arranged cantilever slab 101 and a vertically arranged breast wall 102, with the cantilever slab 101 located above the breast wall 102. The right side of the cantilever slab 101 and the right side of the breast wall 102 together form the exterior facade of the container retaining wall. Two rows of ecological flower troughs 2 are fixedly installed on the right side wall of the cantilever slab 101, and one row of ecological flower troughs 2 is fixedly installed on the right side wall of the breast wall 102. The flower troughs 2 are filled with planting soil and can be used to grow flowers and grasses. A row of drainage pipes 3 is pre-embedded in the cantilever slab 101, with both ends of the drainage pipes 3 extending to the left and right side walls of the cantilever slab 101, and the drainage pipes 3 are arranged diagonally downward from left to right, so that rainwater on the left side of the cantilever slab 101 can flow to the right side of the cantilever slab 101 through the drainage pipes 3. The drainage pipes 3 have a slope of not less than 4% to facilitate drainage.

[0039] Based on the above structure, the box-type retaining wall provided in this embodiment features ecological flower troughs 2 on the outer side of the cantilever slab 101 and the breast wall 102 of the box chamber. The flower troughs 2 are filled with planting soil and can be used to grow flowers and grasses, resulting in a good ecological landscape effect on the exterior of the box-type retaining wall and beautifying the environment. Simultaneously, rainwater from the inner side of the cantilever slab 101 can flow through the drainage pipe 3 to the outer side of the cantilever slab 101, replenishing the plants in the flower troughs 2 with water. This eliminates the need for a separate water supply system, achieving full utilization of rainwater, resulting in good economic benefits, wide applicability, and continued use even when the wall height exceeds 20 meters.

[0040] Based on the above technical solution, in the technical solution provided in this embodiment, a foundation 7 and a pile foundation 8 are sequentially provided below the box structure 1.

[0041] Furthermore, the container structure 1 also includes a container top plate 103, a container back wall 104, and a container transverse partition 105. The container cantilever plate 101 is installed on the container top plate 103. The container breast wall 102 and the container back wall 104 are both installed below the container top plate 103. The container breast wall 102 and the container back wall 104 are arranged in parallel and spaced apart. The container breast wall 102 and the container back wall 104 are both installed on the support platform 7. The container transverse partition 105 is installed between the container breast wall 102 and the container back wall 104.

[0042] For example, see Figure 3 The top plate 103 of the container is arranged horizontally, and the breast wall 102 and the back wall 104 of the container are both located below the top plate 103. The back wall 104 of the container is arranged parallel to the breast wall 102 and spaced apart, and the back wall 104 of the container is located on the left (inner) side of the breast wall 102.

[0043] The transverse partitions 105 of the container are arranged at lateral intervals between the back wall 104 and the breast wall 102 of the container. For example, see Figure 2 , Figure 4Seven transverse partitions 105 are provided between the back wall 104 and the breast wall 102 of the container, and the seven transverse partitions 105 are arranged in parallel at intervals. The top plate 103, the back wall 104, the breast wall 102, the foundation 7, and the two outermost transverse partitions 105 together constitute a closed container structure. Chamfers are provided between the components of the container structure 1 and between the container structure 1 and the foundation 7. The interior of the container structure 1 can be partially or completely filled with soil as needed. Soil can be filled on the upper part and the left side of the container structure 1.

[0044] In the technical solution provided in this embodiment, both the box structure 1 and the foundation 7 can be made of reinforced concrete, and the concrete strength grade is not lower than C30.

[0045] Pile foundation 8 can be made of reinforced concrete with a concrete strength grade of not less than C30.

[0046] Flower trough 2 can be a reinforced concrete flower trough with a concrete strength grade of not less than C30.

[0047] The foundation 7 can be the same width as the box structure 1, or it can be wider than the box structure 1.

[0048] In practical applications, the top surface of the pile cap 7 should be at least 0.5 meters below the ground level. The thickness of the pile cap 7 should not be less than 1.5 times the diameter of the pile foundation 8, and not less than 1.5 meters.

[0049] The thickness of the container's breast wall 102, container's back wall 104, container's top plate 103, container's transverse partition 105, and container's cantilever plate 101 should not be less than 0.3 meters.

[0050] The main reinforcement bars of the box girder breast wall 102, box girder back wall 104, box girder top slab 103, box girder diaphragm 105, box girder cantilever slab 101 and foundation 7 should be reliably anchored as a whole, and the anchorage length should meet the minimum anchorage length requirement.

[0051] The pile foundation 8 should be under compression, not tension. This compression state can be ensured by controlling the spacing of the pile foundation 8. The bearing capacity of the pile foundation 8 can be designed as friction piles or end-bearing piles. The ends of the pile foundation 8 under the same pile cap 7 should be located in the same favorable stratum. The diameter of the pile foundation 8 should not be less than 0.8 meters. The center-to-center spacing of friction pile foundation 8 should not be less than 2.5 times the diameter of the pile foundation 8, and the center-to-center spacing of end-bearing pile foundation 8 supported or embedded in bedrock should not be less than twice the diameter of the pile foundation 8.

[0052] The top slab 103 of the box chamber is a bending structure, while the breast wall 102, the back wall 104, and the cantilever slab 101 of the box chamber are all compression-bending structures. Reinforcing steel should be configured according to the stress of the box chamber structure and verification should be performed.

[0053] In the technical solution provided in this embodiment, a plain concrete cushion layer 9 is provided below the pile cap 7, and the top of the pile foundation 8 extends through the plain concrete cushion layer 9 into the pile cap 7.

[0054] For example, see Figure 3 A plain concrete pad 9 is set under the foundation 7. The plain concrete pad 9 should be 0.1 to 0.2 meters wider than the foundation 7 on each side. The plain concrete pad 9 is set to level the horizontal surface so that the foundation 7 can be poured more easily.

[0055] The depth of the pile foundation 8 embedded in the pile cap 7 can be 0.1~0.15 meters. The main reinforcement of the pile foundation 8 should extend into the pile cap 7. The main reinforcement of the pile foundation 8 extending into the pile cap 7 should preferably be made into a trumpet shape. The length of the main reinforcement of the pile foundation 8 extending into the pile cap 7 should not be less than 35 times the diameter of the main reinforcement.

[0056] The distance L between the pile foundation 8 and the edge of the pile cap 7: When the diameter of the pile foundation 8 is not greater than 1 meter, L shall not be less than 0.5 times the pile diameter and not less than 0.25 meters; when the diameter of the pile foundation 8 is greater than 1 meter, L shall not be less than 0.3 times the pile diameter and not less than 0.5 meters.

[0057] In the technical solution provided in this embodiment, a reverse filter layer 5 is provided at the first end hole of the drain pipe 3.

[0058] For example, see Figure 3 The cantilever slab 101 of the container chamber is equipped with two rows of drainage pipes 3. One row of drainage pipes 3 is located at the middle height of the cantilever slab 101, and the other row of drainage pipes 3 is located at the bottom of the cantilever slab 101. A filter layer 5 is installed at the left end of each row of drainage pipes 3. That is, two rows of filter layers 5 are located on the left side of the cantilever slab 101. The filter layer 5 can be made of geotextile wrapped with pebbles, the purpose of which is to prevent soil particles from being carried away by water flow. The left end of the drainage pipe 3 can be funnel-shaped to facilitate rainwater diversion.

[0059] Below the filter layer 5 is a water-resistant layer 6. The water-resistant layer 6 is composed of rock layers or materials that are impermeable to water, usually made of clay, shale, etc., and has extremely low permeability.

[0060] For example, see Figure 3 A water-proof layer 6 is provided below the upper row of filter layers 5, and the upper surface of the water-proof layer 6 is parallel to the bottom end of the holes of the upper row of drain pipes 3, so that the rainwater collected by the water-proof layer 6 can flow into the drain pipes 3. The lower row of filter layers 5 does not need to be equipped with a water-proof layer 6 because the lower row of filter layers 5 is located directly above the top plate 103 of the chamber, and the upper surface of the top plate 103 of the chamber is parallel to the bottom end of the holes of the lower row of drain pipes 3. The rainwater collected above the top plate 103 of the chamber can flow into the lower row of drain pipes 3, so there is no need to install a water-proof layer 6.

[0061] See Figure 5Two rows of ecological flower troughs 2 are fixedly installed on the outer wall of the cantilever slab 101 of the container, and one row of ecological flower troughs 2 is fixedly installed on the outer wall of the breast wall 102 of the container, for a total of three rows of flower troughs 2. Among them, the upper row of drainage pipes 3 can replenish water to the middle row of flower troughs 2, and the lower row of drainage pipes 3 can replenish water to the bottom row of flower troughs 2. The top row of flower troughs 2 is unobstructed and can be directly replenished by rainwater or rainfall above the cantilever slab 101 of the container, without the need for replenishment through the drainage pipes 3.

[0062] The drainage pipe 3 is spaced a certain height distance from the corresponding flower trough 2 to avoid the flower trough 2 being subjected to a large impact when the rain is heavy, which could lead to soil loss.

[0063] A water filter layer 4 is provided on the inner side of the cantilever plate 101 of the chamber.

[0064] For example, see Figure 3 A filter layer 4 is provided on the left side of the cantilever plate 101 of the chamber. The filter layer 4 is mainly used for filtration and drainage. It is usually composed of materials with larger particles (such as pebbles and gravel), which allows water to pass through but prevents soil particles from being lost. The filter layer 4 has reserved space for setting up a reverse filter layer 5 and a water-proof layer 6, so that the filter layer 4 can work together with the reverse filter layer 5.

[0065] In summary, the construction method for the box-type retaining wall provided in this embodiment is as follows:

[0066] S1, Construction pile foundation;

[0067] S2. Excavate the foundation pit, construct the plain concrete cushion layer, and construct the foundation cap;

[0068] S3. Construction of the box structure and ecological flower troughs, with pre-reserved holes in the top plate of the box for filling the interior of the box structure with soil.

[0069] S4. Backfilling of the foundation pit, filling the interior of the box structure with soil, and sealing the top slab of the box;

[0070] S5. Construction drainage system (drainage pipe, filter layer, reverse filter layer, waterproof layer);

[0071] S6. Backfilling behind and above the box-type retaining wall structure.

[0072] The box-type retaining wall structure should be properly connected to the roadbed or other structures.

[0073] Furthermore, the box-type retaining wall provided in this embodiment should be equipped with settlement joints and expansion joints. Expansion joints should be provided along the length of the wall at locations where the wall cross-section changes and where it connects with other structures; settlement joints should be provided at locations where the terrain or foundation changes. Expansion joints and settlement joints can be combined. The length of each segment of the box-type retaining wall structure should not exceed 20 meters. Each segment of the box-type retaining wall structure should preferably have three or more transverse diaphragms.

[0074] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 of this application.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0076] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0077] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A box-type retaining wall, characterized in that, Including the chamber structure (1); The chamber structure (1) includes a chamber cantilever plate (101) and a chamber breast wall (102). Flower grooves (2) are provided on the outer wall of the chamber cantilever plate (101) and the outer wall of the chamber breast wall (102). A drain pipe (3) is provided inside the chamber cantilever plate (101). The first end of the drain pipe (3) extends to the inner wall of the chamber cantilever plate (101), and the second end of the drain pipe (3) extends to the outer wall of the chamber cantilever plate (101). The drain pipe (3) is arranged obliquely downward from the first end to the second end.

2. A box-type retaining wall according to claim 1, characterized in that, The box structure (1) is provided with a foundation (7) and pile foundation (8) in sequence below it.

3. A box-type retaining wall according to claim 2, characterized in that, The container structure (1) also includes a container top plate (103), a container back wall (104), and a container transverse partition (105). The container cantilever plate (101) is set on the container top plate (103). The container breast wall (102) and the container back wall (104) are both set below the container top plate (103). The container breast wall (102) and the container back wall (104) are arranged in parallel and spaced apart. The container breast wall (102) and the container back wall (104) are both set on the support platform (7). The container transverse partition (105) is set between the container breast wall (102) and the container back wall (104).

4. A box-type retaining wall according to claim 2, characterized in that, The foundation (7) is provided with a plain concrete cushion layer (9) below it, and the top of the pile foundation (8) extends through the plain concrete cushion layer (9) into the foundation (7).

5. A box-type retaining wall according to claim 1, characterized in that, The flower trough (2) is a reinforced concrete flower trough.

6. A box-type retaining wall according to claim 1, characterized in that, The drain pipe (3) has a filter layer (5) at the first end hole.

7. A box-type retaining wall according to claim 6, characterized in that, A water-resistant layer (6) is provided below the filter layer (5).

8. A box-type retaining wall according to claim 1, characterized in that, A water filter layer (4) is provided on the inner side of the cantilever plate (101) of the chamber.

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