Retaining wall with assembled inverted filter building blocks

By using prefabricated filter blocks for retaining walls, the problems of low construction efficiency and easy failure of graded crushed stone filter layers are solved, achieving efficient and stable filter drainage effect and reducing construction costs.

CN223922243UActive Publication Date: 2026-02-17CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD
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Patent Information

Application Number
CN202520527021.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-17
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The existing graded crushed stone filter layer of retaining walls has low construction efficiency and is prone to failure due to settlement of backfill soil.

Method used

Assembled filter blocks are used as the filter body, including porous permeable first filter blocks and beam-type filter blocks. They are prefabricated and stacked one by one, combined with filter geotextile to form a stable filter body structure.

Benefits of technology

It improves construction efficiency, ensures that the filter body does not fail when the backfill soil settles, maintains good filter drainage effect, and reduces the amount of construction work and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a retaining wall with assembled inverted filter building blocks, which belongs to the technical field of retaining walls, and comprises a retaining wall, an inverted filter building block and an inverted filter building block, the water drainage pipes are buried in the retaining wall in the height direction of the retaining wall; the inverted filter body comprises a plurality of first inverted filter building blocks which are stacked in the height direction of the retaining wall, and the first inverted filter building blocks are of porous permeable structures; the side, close to the wall, of the inverted filter abuts against the rear side of the retaining wall, and one end of each drainage pipe abuts against the side, close to the wall, of the inverted filter. The bottom side of the inverted filter body is propped against the bottom plate; and the inverted filter geotechnical cloth is laid on the surface of the inverted filter body. According to the retaining wall with the assembled inverted filter building blocks, even if backfill soil settles, the arrangement position of the inverted filter body on the rear side of the retaining wall can be kept unchanged, and the inverted filter body can still continuously exert the inverted filter effect; during assembly, a plurality of prefabricated first inverted filter building blocks only need to be stacked one by one, so that the construction efficiency is higher, and safety and reliability are achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of retaining wall technology, and more specifically, it relates to a retaining wall with assembled filter blocks. Background Technology

[0002] Retaining walls are widely used in river and canal system engineering projects. Their main and commonly used structural types include gravity type, counterweight type, and cantilever type.

[0003] When there is no water or the water level is low in front of the retaining wall while the water level is high behind the wall, a certain number of drainage pipes can be buried inside the wall. The drainage pipes can be arranged in rows along the height of the wall, and a well-graded filter layer and a well-collecting and draining body should be installed behind the drainage pipes. Currently, the most common reverse filtration types are graded crushed stone reverse filter layers, graded crushed stone reverse filter bags, and prefabricated drainage mats.

[0004] Graded crushed stone filter bags are simply installed along the entire length of the drainage pipe, making construction easy; however, if they are placed on backfill soil, the filter body is prone to failure once the backfill soil settles. Graded crushed stone filter layers are laid fully behind the wall, so even if settlement occurs, it will not affect drainage; however, graded crushed stone filter layers are composed of granular materials and require layered filling, which seriously affects filling efficiency. Utility Model Content

[0005] In view of the problems of low construction efficiency and easy failure of the graded crushed stone filter layer and filter bag used in the current retaining wall, the purpose of this utility model is to provide a retaining wall with assembled filter blocks. The retaining wall uses assembled filter blocks as the filter body, which has high construction efficiency and can avoid the failure of the filter body caused by backfill settlement.

[0006] To achieve the above objectives, this utility model provides a retaining wall with assembled filter blocks, comprising:

[0007] A retaining wall, which includes interconnected walls and a base slab;

[0008] Multiple drainage pipes are embedded in the retaining wall along its height.

[0009] A filter body comprising a plurality of first filter blocks stacked along the height of the retaining wall, the first filter blocks being porous and permeable; the wall-facing side of the filter body abuts against the rear side of the retaining wall, and one end of each of the plurality of drainage pipes abuts against the wall-facing side of the filter body; the bottom side of the filter body abuts against the base plate; and,

[0010] The reverse filter geotextile is laid on the surface of the reverse filter body.

[0011] Furthermore, multiple first filter blocks are stacked along the rear surface of the wall.

[0012] Furthermore, the filter body also includes a plurality of beam-type filter blocks spaced apart along the height direction of the retaining wall, a plurality of first filter blocks spaced apart in a “1” shape along the length direction of the wall, and a plurality of beam-type filter blocks and a plurality of first filter blocks stacked in a “well” shape.

[0013] Furthermore, the beam-type filter block includes a grid support plate and a second filter block stacked on the upper side of the grid support plate, wherein the second filter block has a porous permeable structure.

[0014] Furthermore, the first filter block is a cubic structure, the width and height of the beam-type filter block are the same as the width and height of the first filter block, and the length of the beam-type filter block is the same as the length of the wall.

[0015] Furthermore, the dimensions of the first filter block are 300mm×300mm×300mm, and the dimensions of the beam-type filter block are 300mm×300mm×1500mm.

[0016] Furthermore, the wall is either a vertical wall or a backsloping wall.

[0017] Furthermore, multiple drainage pipes are inclinedly arranged inside the retaining wall, sloping towards the front side of the retaining wall.

[0018] Compared with the prior art, the present invention has the following technical effects:

[0019] The present invention relates to a retaining wall with assembled filter blocks, comprising multiple first filter blocks stacked along the height of the retaining wall, with the bottom side of the filter block abutting against the bottom plate of the retaining wall. This ensures that even if the backfill settles, the filter block's higher structural rigidity and lower compressibility allow its position on the rear side of the retaining wall to remain unchanged, allowing it to continue to perform its filtering function. Furthermore, the multiple first filter blocks constituting the filter block can be prefabricated; during assembly, the prefabricated blocks are simply stacked one by one, resulting in higher construction efficiency and greater safety and reliability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the overall structure of a retaining wall with assembled filter blocks provided for an embodiment of the present utility model, wherein the wall is vertical and the first filter blocks are fully laid.

[0022] Figure 2 This is a schematic diagram of the overall structure of a retaining wall with assembled filter blocks provided for an embodiment of the present utility model, wherein the wall is anti-sloping and the first filter blocks are fully laid.

[0023] Figure 3 This is a schematic diagram of the overall structure of a retaining wall with assembled filter blocks provided for an embodiment of the present utility model. The wall is vertical, and the first filter block and the beam-type filter blocks are laid in a "well" pattern.

[0024] Figure 4 This is a schematic diagram of the overall structure of a retaining wall with assembled filter blocks provided for an embodiment of the present utility model. The wall is a backsloping type, and the first filter block and the beam-type filter blocks are laid in a "well" pattern.

[0025] Figure 5 for Figure 1 or Figure 2 A schematic diagram of the side view structure;

[0026] Figure 6 for Figure 3 or Figure 4 A schematic diagram of the side view structure;

[0027] Figure 7 A cross-sectional structural schematic diagram of the beam-type filter block provided in an embodiment of this utility model;

[0028] Figure 8 for Figure 7 A top view of the central grille support plate;

[0029] Figure 9 This is a partial structural schematic diagram of the grille support plate provided in an embodiment of the present utility model.

[0030] The following are the labeling elements in the figure:

[0031] 1. First filter block, 2. Beam-type filter block, 3. Filter geotextile, 4. Drainage pipe, 5. Retaining wall, 201. Grating support plate, 202. Second filter block, 501. Wall, 502. Base plate. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] It should be understood that the terms "length", "upper", "lower", "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. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0035] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The singular forms “a,” “the,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0036] The terms "first" and "second" are used for descriptive purposes only, to distinguish objects, such as substances, from one another, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. For example, without departing from the scope of the embodiments of this utility model, a first XX can also be referred to as a second XX, and similarly, a second XX can also be referred to as a first XX. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0037] Please see Figures 1-9 The present invention will now describe a retaining wall with assembled filter blocks according to an embodiment of the present invention.

[0038] In one embodiment of this utility model, a retaining wall with assembled filter blocks includes: a retaining wall 5, multiple drainage pipes 4, a filter body, and a filter geotextile 3. The retaining wall 5 includes a wall body 501 and a base plate 502 connected to each other. Multiple drainage pipes 4 are embedded within the retaining wall 5 along its height. The filter body includes multiple first filter blocks 1 stacked along the height of the retaining wall 5. The first filter blocks 1 have a porous, permeable structure. The wall-facing side of the filter body abuts against the rear side of the retaining wall 5, and one end of each of the multiple drainage pipes 4 abuts against the wall-facing side of the filter body. The bottom side of the filter body abuts against the base plate 502 of the retaining wall 5. The filter geotextile 3 is laid on the surface of the filter body. Figure 1 , Figure 2 As shown.

[0039] In this embodiment, the retaining wall 5 has a vertical wall structure 501. Figure 1 or backsloping wall ( Figure 2 The rear side of retaining wall 5 is the side with a higher water level, i.e. Figure 1 or Figure 2 The first filter block 1 in this embodiment is a commercially available concrete block, or it can be prepared according to existing publicly available technology. The first filter block 1 is a structure formed by bonding and pressing crushed stone with an adhesive. Generally, the porosity of the first filter block 1 is not less than 40% to ensure that it is a good porous and permeable structure.

[0040] In the present invention, a retaining wall with assembled reverse filter blocks is used such that water flows from right to left through the reverse filter geotextile 3 and the reverse filter body, and then enters the drainage pipe 4 inside the retaining wall 5 to be discharged.

[0041] According to an embodiment of this utility model, the filter body of a retaining wall with assembled filter blocks includes multiple first filter blocks 1 stacked along the height direction of the retaining wall 5, and the bottom side of the filter body abuts against the bottom plate 502 of the retaining wall 5. In this way, even if the backfill soil settles, compared with the backfill soil, the first filter blocks 1 have greater structural rigidity and lower compressibility, so the setting position of the filter body on the rear side of the retaining wall 5 can remain unchanged, and the filter body can continue to perform its filter drainage function. On the other hand, the multiple first filter blocks 1 constituting the filter body can be prefabricated. During assembly, multiple prefabricated first filter blocks 1 can be stacked one by one from the bottom plate 502 of the retaining wall 5, which has higher construction efficiency and is safe and reliable.

[0042] In this embodiment, multiple drainage pipes 4 are installed in rows at intervals along the height of the retaining wall 5. Reverse filtration can be achieved simply by installing multiple first filter blocks 1 stacked upwards from the bottom plate 502 on the side of the retaining wall 5 where the drainage pipes 4 are located. In this case, the multiple first filter blocks 1 are arranged in a "1" shape at intervals along the length of the retaining wall 5. Preferably, the multiple first filter blocks 1 are fully stacked along the rear surface of the wall 501 of the retaining wall 5, such as... Figure 5 As shown, at this time, the filter body is fully covered on the rear side of the retaining wall 5. The filter body forms interconnected water collection and drainage channels. After the water is collected in the filter body, it is discharged from the drainage pipe 4. The filter body has a better drainage effect, and the fully covered filter body has better overall integrity. The overall structure of the assembled retaining wall is more stable.

[0043] Furthermore, the filter body in this embodiment also includes a plurality of beam-type filter blocks 2 spaced apart along the height direction of the retaining wall 5, a plurality of first filter blocks 1 spaced apart in a "1" shape along the length direction of the wall 501, and a plurality of beam-type filter blocks 2 and a plurality of first filter blocks 1 stacked in a "well" shape, as shown. Figure 3 , Figure 4 , Figure 6 As shown in the diagram, in this embodiment, the filter body is arranged in a "well" shape on the rear wall of the retaining wall 5. Multiple beam-type filter blocks 2 connect multiple first filter blocks 1 arranged at "I"-shaped intervals. Simultaneously, the multiple beam-type filter blocks 2 also provide support for the multiple first filter blocks 1, resulting in better overall stability of the "well"-shaped stacked filter body structure. Compared to a fully paved filter body, the filter body structure of this embodiment can significantly reduce the amount of construction work required for the filter body while ensuring good drainage, thus reducing costs and improving project efficiency.

[0044] Furthermore, the beam-type filter block 2 of this embodiment includes a grid support plate 201 and a second filter block 202 stacked on the upper side of the grid support plate 201. The second filter block 202 has a porous and permeable structure. The second filter block 202 is a commercially available concrete block, or it can be prepared according to existing publicly available technology. The second filter block 202 is a structure formed by bonding and pressing crushed stone with an adhesive. Generally, the porosity of the second filter block 202 is not less than 40% to ensure that it is a good porous and permeable structure. The beam-type filter block 2 of this embodiment uses the grid support plate 201 as a structural beam to support the second filter block 202, which makes the beam-type filter block 2 as a whole have high strength and compressive strength, so that it can meet the requirements of stacking and assembling filter bodies.

[0045] Furthermore, in this embodiment, the first filter block 1 is a cubic structure, and the width and height of the beam-type filter block 2 are the same as those of the first filter block 1, while the length of the beam-type filter block 2 is the same as the length of the wall 501. Thus, when the beam-type filter block 2 is stacked on top of the first filter block 1, the contact surface between the beam-type filter block 2 and the first filter block 1 is a square surface. Specifically, the dimensions of the first filter block 1 can be 300mm × 300mm × 300mm, and the dimensions of the beam-type filter block 2 can be 300mm × 300mm × 1500mm.

[0046] Furthermore, in this embodiment, multiple drainage pipes 4 are inclinedly arranged inside the retaining wall 5, sloping towards the front side of the retaining wall 5, which is the side with a lower water level, in order to facilitate rapid drainage.

[0047] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A retaining wall with assembled filter blocks, characterized in that, include: A retaining wall, which includes interconnected walls and a base slab; Multiple drainage pipes are embedded in the retaining wall along its height. A filter body comprising a plurality of first filter blocks stacked along the height of the retaining wall, the first filter blocks being porous and permeable; the wall-facing side of the filter body abuts against the rear side of the retaining wall, and one end of each of the plurality of drainage pipes abuts against the wall-facing side of the filter body; the bottom side of the filter body abuts against the base plate; and, The reverse filter geotextile is laid on the surface of the reverse filter body.

2. A retaining wall with assembled filter blocks as described in claim 1, characterized in that, Multiple first filter blocks are stacked along the rear surface of the wall.

3. A retaining wall with assembled filter blocks as described in claim 1, characterized in that, The filter body also includes a plurality of beam-type filter blocks spaced apart along the height direction of the retaining wall, a plurality of first filter blocks spaced apart in a "1" shape along the length direction of the wall, and a plurality of beam-type filter blocks and a plurality of first filter blocks stacked in a "well" shape.

4. A retaining wall with assembled filter blocks as described in claim 3, characterized in that, The beam-type filter block includes a grid support plate and a second filter block stacked on the upper side of the grid support plate. The second filter block has a porous and permeable structure.

5. A retaining wall with assembled filter blocks as described in claim 4, characterized in that, The first filter block is a cubic structure, the beam-type filter block has the same width and height as the first filter block, and the length of the beam-type filter block is the same as the length of the wall.

6. A retaining wall with assembled filter blocks as described in claim 5, characterized in that, The first filter block has dimensions of 300mm×300mm×300mm, and the beam-type filter block has dimensions of 300mm×300mm×1500mm.

7. A retaining wall with assembled filter blocks as described in any one of claims 1-6, characterized in that, The wall is either a vertical wall or a backsloping wall.

8. A retaining wall with assembled filter blocks as described in claim 7, characterized in that, Multiple drainage pipes are installed at an angle inside the retaining wall, sloping towards the front side of the retaining wall.