A multi-stage sand-retaining device for soil and water conservation

Abstract

The invention relates to a multi-stage sand blocking device for water and soil conservation. The multi-stage sand blocking device comprises a sand blocking fence, a winding device, a positioning sand-proof net and a load-bearing bottom frame, the winding device is arranged at the lower end of the sand blocking fence, the positioning sand-proof net is wound around the winding device, and the load-bearing bottom frame is arranged at the rear end of the sand blocking fence. The difficult problems that an existing sand blocking fence is usually a reinforced concrete hard wall, the wall partitionsand intercepts silt on the two sides, in the long run, a large amount of the silt located on the upper side of the wall is prone to being accumulated at the edge of the wall, the effect of water and soil conservation is difficult to achieve, the silt accumulated at the wall corner has a certain weight, the wall structure is prone to being damaged to a certain extent due to long-time accumulation,and the existing sand blocking fence is usually poured on a river slope, is cumbersome in installation, and cannot be dismantled can be solved.

Description

Technical field [0001] The invention relates to the field of river training, and in particular to a multi-stage sand blocking device for water and soil conservation. Background technique [0002] The river has the functions of flood discharge, drainage, water diversion, irrigation, navigation, landscape, tourism, etc. There are a large amount of sediment on the slopes on both sides of the river. Because the slope has a certain slope, for a long time, the mud on the slope Sand may flow into the river channel and silt up at the bottom of the river channel. The water and soil erosion also reduces the cross-section of the river channel. Therefore, it is necessary to install sand barriers on both sides of the river slope. However, the existing sand barriers often have the following problem: [0003] 1. Existing sand barriers are usually reinforced concrete hard walls. The walls separate and intercept the sediment on both sides. In the long run, it is easy to cause a large amount of sed...

AI Technical Summary

Problems solved by technology

[0005] The present invention can solve the problem that the existing sand-blocking guardrail is usually a reinforced concrete hard wall, and the wall separates and intercepts the sediment on both sides. In the long run, it is easy to cause a large amount of sediment on the upper side of the wall to accumulate on the wall At the edge, it is difficult to maintain the effect of water and soil, and the sediment accumulated at the corner has a certain weight, and the long-term accumulation is easy to cause certain damage to the wall structure. The existing sand barriers are usually poured on the river slope On the surface, the installation is more cumbersome, and it cannot be disassembled and other problems

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