Retaining wall filter device

By using a three-layer coaxial nested spherical-cylindrical mesh shell structure to fill the filter material in layers, the problem of difficult layering of filter material in retaining walls is solved, ensuring the stability and drainage effect of the retaining wall and preventing wall slippage and overturning.

CN224431486UActive Publication Date: 2026-06-30ANHUI SURVEY & DESIGN INST OF WATER CONSERVANCY & HYDROPOWER

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI SURVEY & DESIGN INST OF WATER CONSERVANCY & HYDROPOWER
Filing Date
2025-06-18
Publication Date
2026-06-30

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Abstract

This utility model provides a retaining wall reverse filtration device, relating to the field of retaining wall reverse filtration technology. The retaining wall reverse filtration device includes: an outer steel mesh, a middle steel mesh, an inner steel mesh, and a mounting frame. The device uses three layers of coaxially nested spherical-cylindrical mesh shells to fill the reverse filtration material in layers, ensuring that the reverse filtration material behind the retaining wall is clearly layered, with thicknesses meeting design drawing requirements, and is not mixed. Construction is convenient, simple, and quick, ensuring the drainage effect of the reverse filtration material and preventing the retaining wall from slipping, tilting, or overturning.
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