Novel retaining wall inverted filter

Abstract

The utility model discloses a novel retaining wall inverted filter layer which comprises a retaining wall provided with a water drain pipe, and further comprises a water seepage and drainage net pad and percolation geotechnical cloth, one side of the water seepage and drainage net pad is fixedly connected with the back face of the retaining wall and covers a pipe opening of the water drain pipe, and the other side of the water seepage and drainage net pad is fixedly connected with the retaining wall. And the percolation geotechnical cloth covers the other layer of the percolation and drainage mesh pad and is fixedly connected with the percolation and drainage mesh pad. The novel retaining wall inverted filter is simple in structure and convenient to use, and solves the problems that a traditional gravel inverted filter is complex in construction process, not ideal in inverted filter forming, low in permeable rate and low in wall back filling construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering technology, specifically relating to a novel retaining wall filter layer. Background Technology

[0002] Retaining walls, as an important retaining structure, are widely used in road, water conservancy, and construction engineering. To ensure the stability of the backfill behind the retaining wall, it is essential to prevent water accumulation behind it, making drainage systems such as the backfill filter layer particularly important. Traditional filter layers consist of gravel and crushed stone wrapped in geotextile and constructed layer by layer along with the backfill. This often results in problems such as unsatisfactory filter layer formation, reduced backfill construction efficiency, high mud content in the gravel, or roadbed soil mixing into the gravel, affecting drainage performance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a new type of retaining wall filter layer that is simple in structure, easy to use, and can solve the problems of complicated construction process, unsatisfactory filter layer formation, low water permeability, and low construction efficiency of backfilling soil on the wall in traditional sand and gravel filter layers.

[0004] The technical solution of this utility model is as follows: a novel retaining wall filter layer, including a retaining wall with a drainage pipe, and further including a drainage mesh and a permeable geotextile. One side of the drainage mesh is fixedly connected to the back of the retaining wall and covers the opening of the drainage pipe. The permeable geotextile covers another layer of the drainage mesh and is fixedly connected to the drainage mesh.

[0005] Furthermore, the drainage mesh is fixedly connected to the back of the retaining wall by adhesive or mechanical fasteners.

[0006] Furthermore, the thickness of the drainage mesh is 5-20 mm.

[0007] Furthermore, the drainage mesh is provided with multiple flow channels.

[0008] Furthermore, the geotextile and the drainage mesh are fixedly connected by sewing, bonding or heat fusion.

[0009] Furthermore, the permeable geotextile has a unit area mass of 100-500 grams per square meter.

[0010] The beneficial effects of this utility model are as follows: This novel retaining wall filter layer, by fixing a drainage mesh mat to the back of the retaining wall and covering the drainage pipe opening, effectively guides accumulated water behind the wall into the drainage pipe for rapid drainage. Multiple guide grooves on the drainage mesh mat further promote smooth water flow and reduce the residence time of water behind the wall. This efficient drainage system reduces water pressure on the soil behind the wall, thereby enhancing the overall stability of the retaining wall. By covering the drainage mesh mat with a permeable geotextile, a filtering effect is achieved, preventing fine particles in the soil from being lost with water and effectively preventing soil erosion. This design helps maintain the integrity of the soil behind the wall and extends the service life of the retaining wall. Through efficient drainage design, soil erosion protection, optimized material parameters, and a robust connection method, this utility model significantly improves the stability and durability of the retaining wall, solving the problems of complex construction processes, unsatisfactory filter layer formation, low permeability, and low efficiency of backfilling construction in traditional gravel filter layers. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a novel retaining wall filter layer according to this utility model.

[0012] In the diagram: 1-retaining wall, 2-drainage pipe, 3-drainage mesh, 4-permeable geotextile, 5-backfill soil behind the wall. Detailed Implementation

[0013] like Figure 1 As shown, a novel retaining wall filter layer includes a retaining wall 1 with a drainage pipe 2, and further includes a drainage mesh 3 and a permeable geotextile 4. One side of the drainage mesh 3 is fixedly connected to the back of the retaining wall 1 and covers the opening of the drainage pipe 2. The permeable geotextile 4 covers another layer of the drainage mesh 3 and is fixedly connected to the drainage mesh 3.

[0014] Preferably, the drainage mesh 3 is fixedly connected to the back of the retaining wall 1 by adhesive or mechanical fasteners.

[0015] Preferably, the thickness of the drainage mesh 3 is 5-20 mm.

[0016] Preferably, the drainage mesh 3 is provided with multiple guide grooves.

[0017] Preferably, the geotextile 4 and the drainage mesh 3 are fixedly connected by sewing, bonding or heat fusion.

[0018] Preferably, the permeable geotextile 4 has a unit area mass of 100-500 grams per square meter.

[0019] When using it, first fill the backfill soil 5 behind the wall to the bottom of the drain pipe 2 of the retaining wall 1, then fix the drainage mesh 3 to the back of the retaining wall 1 and cover the drain pipe 2, then cover the drainage mesh 3 with the permeable geotextile 4 and fix it firmly, and finally complete the backfilling of all the backfill soil 5 behind the wall layer by layer.

[0020] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made to it.

Claims

1. A new type of retaining wall filter bed comprising a retaining wall (1) having a drain pipe (2) formed therein, characterized in that, Also include: Drainage network mat (3) and filtration geotextile (4), one side of the drainage network mat (3) is fixedly connected with the back of the retaining wall (1) and covers the pipe opening of the drain pipe (2), the filtration geotextile (4) covers the other layer of the drainage network mat (3) and is fixedly connected with the drainage network mat (3).

2. A new type of retaining wall filter layer according to claim 1, characterized in that, The drainage network mat (3) is fixedly connected with the back of the retaining wall (1) by an adhesive or a mechanical fixing part.

3. A new type of retaining wall filter layer according to claim 1, characterized in that, The thickness of the drainage network mat (3) is 5-20 mm.

4. A new type of retaining wall filter layer according to claim 1, characterized in that, A plurality of flow guide grooves are arranged on the drainage network mat (3).

5. A new type of retaining wall filter layer according to claim 1, characterized in that, The filtration geotextile (4) is fixedly connected with the drainage network mat (3) by sewing, bonding or hot melting.

6. A new type of retaining wall filter layer according to claim 1, characterized in that, The unit area mass of the filtration geotextile (4) is 100-500 g / m2.

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