Replaceable retaining wall rear inverted filter structure

Abstract

The utility model relates to the field of engineering construction, and discloses a replaceable retaining wall rear inverted filter structure which comprises a protective cover, a plurality of inverted filter bags and a top sealing structure, the protective cover is in a shell shape, the top of the protective cover is open, a plurality of filter holes are formed in the side wall of the protective cover, and a plurality of partition plates are arranged at the bottom of the protective cover. The multiple partition plates are vertically arranged, a filter material filling cavity is formed between every two adjacent partition plates, and in the working state, the protective cover is arranged on the rear side of the retaining wall; the plurality of inverted filter bags are respectively filled in the corresponding filter material filling cavities; in the working state, the top sealing structure is detachably connected to the top of the protective cover to seal the opening of the protective cover. The reverse filter bag has the beneficial effects that when the reverse filter bag needs to be replaced, only the top sealing structure needs to be detached, and the reverse filter bag positioned in the filter material filling cavity is hooked out through tools such as a drag hook, so that the reverse filter bag can be replaced without digging out backfill materials, and the replacement cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction, specifically to a replaceable retaining wall back filter structure. Background Technology

[0002] Groundwater behind a retaining wall can significantly affect its stability. Drainage holes are typically installed on the retaining wall, and a filter layer is placed on the back side of the retaining wall. The filter layer ensures drainage, reduces water pressure behind the wall, and prevents soil particle loss that could lead to soil settlement behind the wall.

[0003] The current filter layer is formed by paving with crushed stone. Because the crushed stone is different from the backfill material behind the retaining wall, it needs to be compacted in sections during construction, which affects construction efficiency. Moreover, after long-term operation, fine soil particles will fill the gaps between the crushed stone in the filter layer, causing the filter layer to become blocked. Groundwater behind the wall cannot pass through the filter layer smoothly, resulting in drainage failure. When replacing the filter layer, the backfill material must be excavated first. Utility Model Content

[0004] The technical problem this invention aims to solve is that current filter layers are easily clogged, and replacing them requires excavating the backfill material first, resulting in high replacement costs. The purpose is to provide a replaceable filter structure behind a retaining wall. When the filter bag needs to be replaced, only the top structure needs to be disassembled, and the filter bag located in the filter material filling cavity can be hooked out using tools such as hooks. This allows the filter bag to be replaced without excavating the backfill material, reducing replacement costs.

[0005] This utility model is achieved through the following technical solution:

[0006] A replaceable retaining wall rear filter structure includes a protective cover, several filter bags, and a capping structure. The protective cover is shell-shaped, with an open top and several filter holes on its side walls. Several partitions are vertically arranged at the bottom of the protective cover, forming a filter media filling cavity between adjacent partitions. In operation, the protective cover is positioned on the rear side of the retaining wall. The filter bags are respectively filled into their corresponding filter media filling cavities. In operation, the capping structure is detachably connected to the top of the protective cover, closing the open top of the protective cover.

[0007] The beneficial effects of this utility model are as follows: By setting several filter bags and a protective cover, with several filter holes on the side wall of the protective cover, and filling the protective cover with filter bags to form a filter layer, the outer structure of the protective cover becomes the outer structure of the filter layer. This eliminates the need to compact the filter layer formed by the protective cover and filter bags during construction, improving construction efficiency. The diameter of the filter bags is much larger than that of a single filter media particle, increasing the distance between two filter bags and enhancing the filtration effect. Furthermore, the top of the protective cover is open, and the partition is vertically positioned. When it is necessary to replace the filter bags, only the top structure needs to be disassembled to expose the opening of the protective cover. Then, the filter bags located in the filter media filling cavity can be hooked out using tools such as hooks, allowing replacement of the filter bags without digging out the backfill material. This reduces replacement costs and improves the efficiency of replacing the filter layer.

[0008] In some embodiments, the length of each partition is the same as the height of the protective cover, and both sides of the partition are connected to the side walls of the inner cavity of the protective cover. By setting the length of the partitions to be the same as the height of the protective cover, it is convenient to divide the protective cover into several filter media filling chambers, and the height of the filter media filling chambers is the same as the height of the protective cover. This facilitates the replacement of the filter pack later, and the partitions can increase the strength and rigidity of the protective cover, preventing deformation during use.

[0009] In some embodiments, the distance between two adjacent partitions is 260mm-300mm, and the thickness of the partitions is 8mm-10mm. By setting the distance between two adjacent partitions to 260mm-300mm, it is possible to ensure both the strength of the filter layer and the filtration effect.

[0010] In some embodiments, the width of each of the filter media filling cavities may be different. Since the force on the front side of the wall is greater than that on the rear side during operation, the filter media filling cavity near the front side of the protective cover can be made narrower (reducing the distance between two adjacent partitions) to ensure the strength of the filter layer composed of the protective cover, the filter bag, and the partitions.

[0011] In some embodiments, the partition plate is provided with several filter holes. By also providing filter holes on the partition plate, it is convenient for the filter media filling cavities to communicate with each other, so that the filter media filling cavities can work together and improve the filtration effect.

[0012] In some embodiments, the diameter of the filter pores is 10 mm, and the distance between any filter pore and its adjacent filter pores is 100 mm. By setting the diameter of the filter pores to 10 mm and the distance between the filter pores to 100 mm, filtration is achieved without affecting the strength of the baffle.

[0013] In some embodiments, the filter bag includes a filter media bag and gravel, with the gravel filling the filter media bag. In operation, the two side walls of the open end of the filter media bag are sewn together. By using a filter media bag for the filter bag, both filtration efficiency and filter bag strength are ensured, allowing the filter layer strength and filtration efficiency to meet the set requirements.

[0014] In some embodiments, the bottom of the protective cover is provided with filter holes, and the bottom of the protective cover is positioned on top of the compacted clay area.

[0015] In some embodiments, the side of the protective cover away from the retaining wall is attached to the backfill layer behind the wall. By attaching the side of the protective cover away from the retaining wall to the backfill layer behind the wall, the filter layer is combined with the backfill layer, facilitating normal ground operation.

[0016] In some embodiments, the capping structure is a cover plate made of steel or concrete, which covers the top of the protective cover. This facilitates opening and closing the opening of the protective cover, allowing for the filling and replacement of filter bags.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] 1. Several filter holes are provided on the side wall of the protective cover, and the filter bag is filled inside the protective cover to form a filter layer. Thus, the outer shape of the protective cover is the same as that of the filter layer. Therefore, it is not necessary to compact the filter layer formed by the protective cover and the filter bag during construction. The filling area is compacted directly without the need for layered compaction, which improves construction efficiency.

[0019] 2. The diameter of the reverse filter bag is much larger than that of a single filter media, which increases the distance between two reverse filter bags and improves the filtration effect.

[0020] 3. When it is necessary to replace the filter bag, simply disassemble the top structure to expose the opening of the protective cover. Then, the filter bag located in the filter media filling cavity can be hooked out using tools such as hooks. This allows the filter media to be replaced without digging out the backfill, reducing replacement costs and improving the efficiency of replacing the filter layer. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a cross-sectional view of the present invention;

[0023] Figure 2 This utility model Figure 1 Cross-sectional view of AA;

[0024] Figure 3 This is a partial structural diagram of the protective cover in this utility model;

[0025] Figure 4 This is the front view of the protective cover in this utility model.

[0026] The attached diagram shows the markings and corresponding component names:

[0027] 10 Retaining wall, 11 Drainage hole, 20 Filter layer, 21 Protective cover, 212 Partition, 211 Filter hole, 22 Filter bag, 23 Capping structure, 30 Backfill layer behind the wall, 40 Compacted clay area. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0029] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" 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 limiting the scope of protection of this utility model.

[0031] The terms "first," "second," etc., used in this utility model are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0032] Example

[0033] like Figures 1-4 As shown, this embodiment provides a replaceable retaining wall 10 rear filter structure, including a protective cover 21, several filter bags 22, and a capping structure 23. The protective cover 21 is shell-shaped, with an open top and several filter holes 211 on its side walls. Several partitions 212 are provided at the bottom of the protective cover 21, and the partitions 212 are arranged vertically. Adjacent partitions 212 form a filter material filling cavity. In the working state, the protective cover 21 is located on the rear side of the retaining wall 10; the several filter bags 22 are respectively filled into the corresponding filter material filling cavities; in the working state, the capping structure 23 is detachably connected to the top of the protective cover 21, closing the open top of the protective cover 21. The filter pack 22 is filled inside the protective cover 21 to form the filter layer 20, thus making the outer structure of the protective cover 21 the same as that of the filter layer 20. This eliminates the need to compact the filter layer 20 formed by the protective cover 21 and the filter pack 22 during construction, improving construction efficiency. The diameter of the filter pack 22 is much larger than that of a single filter media particle, increasing the distance between two filter packs 22 and enhancing the filtration effect. Furthermore, the top of the protective cover 21 is set as an open opening, and the partition 212 is set vertically. When it is necessary to replace the filter pack 22, it is only necessary to disassemble the top structure 23 to expose the opening of the protective cover 21. Then, the filter pack 22 located in the filter media filling cavity can be hooked out using tools such as hooks, realizing the replacement of the filter pack 22 without digging out the backfill material, reducing replacement costs and improving the efficiency of replacing the filter layer 20.

[0034] See Figures 1-4 Each partition 212 has the same length as the height of the protective cover 21, and both sides of the partition 212 are connected to the inner side walls of the protective cover 21. By setting the length of the partitions 212 to be the same as the height of the protective cover 21, it is convenient to divide the protective cover 21 into several filter media filling chambers through the partitions 212, and the height of the filter media filling chambers is the same as the height of the protective cover 21. This facilitates the replacement of the reverse filter bag 22 in the later stage, and the partitions 212 can increase the strength and rigidity of the protective cover 21, preventing deformation during use.

[0035] See Figures 1-4 The distance between two adjacent partitions 212 is 260mm-300mm, and the thickness of the partition 212 is 8mm-10mm. By setting the distance between two adjacent partitions 212 to 260mm-300mm, it is possible to ensure both the strength of the filter layer 20 and the filtration effect.

[0036] See Figures 1-4The width of each filter media filling cavity may be different. Since the force on the front side of the wall is greater than that on the rear side during operation, the filter media filling cavity near the front side of the protective cover 21 can be made narrower (reducing the distance between two adjacent partitions 212) to ensure the strength of the filter layer 20 composed of the protective cover 21, the filter bag 22 and the partitions 212.

[0037] See Figures 1-4 The partition plate 212 is provided with several filter holes 211. By also providing filter holes 211 on the partition plate 212, it is convenient for the filter media filling cavities to communicate with each other, and the filter media filling cavities work together to improve the filtration effect.

[0038] See Figures 1-4 The diameter of the filter hole 211 is 10 mm, and the distance between any filter hole 211 and its adjacent filter hole 211 is 100 mm. By setting the diameter of the filter hole 211 to 10 mm and the distance between the filter holes 211 to 100 mm, filtration is achieved without affecting the strength of the partition 212.

[0039] See Figures 1-4 The filter bag 22 includes a filter media bag and crushed stone. The crushed stone is filled inside the filter media bag. In the working state, the two side walls of the open end of the filter media bag are sewn together. By using a filter media bag for the filter bag 22, both the filtration effect and the strength of the filter bag 22 can be ensured, so that the strength and filtration effect of the filter layer 20 can meet the requirements. The filter media bag in this invention can be a geotextile bag or a burlap sack.

[0040] See Figures 1-4 The bottom of the protective cover 21 is provided with filter holes 211, and the bottom of the protective cover 21 is located on the top of the compacted clay area 40.

[0041] See Figures 1-4 The protective cover 21, on the side away from the retaining wall 10, is attached to the backfill layer 30 behind the wall. By attaching the protective cover 21, on the side away from the retaining wall 10, to the backfill layer 30 behind the wall, the filter layer 20 is integrated with the backfill layer, facilitating normal ground operation.

[0042] See Figure 1 The capping structure 23 is made of steel plate or concrete slab, and the cover plate covers the top of the protective cover 21. This facilitates the opening and closing of the protective cover 21, allowing for the filling and replacement of filter bags. Specifically, one side of the steel plate can be hinged to the top of the protective cover 21.

[0043] See Figure 1The retaining wall 10 is provided with several drainage holes 11, which extend along the thickness direction of the retaining wall 10. The end of the drainage hole 11 away from the filter layer 20 is inclined downward at an angle of 3 to 5 degrees.

[0044] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A replaceable retaining wall back filter structure, characterized in that, include: The protective cover is shell-shaped, with an open top and several filter holes on the side walls. Several partitions are provided at the bottom of the protective cover, and the partitions are arranged vertically. The space between two adjacent partitions forms a filter material filling cavity. In the working state, the protective cover is set on the rear side of the retaining wall. Several filter bags are respectively filled into the corresponding filter media filling cavities; The capping structure, in the working state, is detachably connected to the top of the protective cover, closing the opening of the protective cover.

2. The replaceable retaining wall back filter structure according to claim 1, characterized in that, The length of each partition is the same as the height of the protective cover, and both sides of the partition are connected to the two side walls of the inner cavity of the protective cover.

3. The replaceable retaining wall back filter structure according to claim 1, characterized in that, The distance between two adjacent partitions is 260mm-300mm, and the thickness of the partition is 8mm-10mm.

4. The replaceable retaining wall back filter structure according to claim 1, characterized in that, The width of each of the filter media filling cavities may be different.

5. The replaceable retaining wall back filter structure according to claim 1, characterized in that, The partition plate is provided with several filter holes.

6. The replaceable retaining wall back filter structure according to claim 5, characterized in that, The diameter of the filter hole is 10mm, and the distance between any filter hole and its adjacent filter hole is 100mm.

7. The replaceable retaining wall back filter structure according to claim 1, characterized in that, The filter bag includes a filter media bag and gravel. The gravel is filled inside the filter media bag. In the working state, the two side walls of the open end of the filter media bag are sewn together.

8. The replaceable retaining wall back filter structure according to claim 1, characterized in that, The bottom of the protective cover is provided with filter holes, and the bottom of the protective cover is set on top of the compacted clay area.

9. The replaceable retaining wall back filter structure according to claim 1, characterized in that, The side of the protective cover away from the retaining wall is in contact with the backfill layer behind the wall.

10. The replaceable retaining wall back filter structure according to claim 1, characterized in that, The capping structure is a cover plate made of steel or concrete, which covers the top of the protective cover.

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