Dual anti-backflow retaining wall drainage pipe and using method thereof

Abstract

The invention discloses a double anti-backflow retaining wall drainage pipe and a using method thereof. The retaining wall drainage pipe comprises a PVC pipe with holes, a first iron gauze, first anti-filtering geotechnical cloth, an anti-backflow system I, a second iron gauze, second anti-filtering geotechnical cloth, and an anti-backflow system II. the first iron gauze, the first reverse filter geotechnical cloth and the anti-backflow system I are sequentially arranged in a drainage hole of the PVC pipe with the holes from outside to inside; and the second anti-filtering geotechnical cloth, the second iron gauze and the anti-backflow system II are sequentially arranged at the position, close to a pipe opening, of the PVC pipe with the holes from inside to outside. The double anti-backflow retaining wall drainage pipe is provided with double anti-backflow systems, so that efficient drainage work can be guaranteed, and meanwhile the risk that the hydrostatic pressure of a retaining wall is too large due to the fact that an external water source flows backwards into a rock-soil layer behind the retaining wall can be prevented. The pipe is convenient to construct and can be applied to drainage work in various projects such as foundation pit projects and road slope projects.

Description

technical field [0001] The invention relates to a drainage device, in particular to a drainage pipe for a double anti-intrusion retaining wall and a method for using the same, which can be used for drainage work of slope engineering and prevention and control of water seepage, inversion and collapse of slopes. Background technique [0002] In recent years, with the continuous acceleration of my country's infrastructure construction and the continuous improvement of urban infrastructure, the application of retaining walls in municipal engineering has become more and more extensive. A retaining wall is a structure that can prevent the collapse of the soil or cut off the extension of the slope, support the fill and materials and ensure their stability. It is widely used in various projects. The drainage system in the retaining wall structure can effectively drain the soil moisture behind the wall, prevent ground water from seeping down, prevent the accumulation of water behind ...

AI Technical Summary

Problems solved by technology

However, in the above-mentioned traditional retaining wall drainage system, there are the following deficiencies: 1. In some areas of our country, there is heavy precipitation, which will cause the water level to rise sharply. However, from the current engineering situation, ordinary retaining wall drainage The pipe is not equipped with an anti-inverting system, which makes it easy for the external water source to pour back into the soil behind the wall, causing the hydrostatic pressure behind the wall to be too large, and there is a safety hazard of the retaining wall collapsing

2. Under the action of water erosion, the mud washed out behind the wall will block the drainage pipe of the wall, resulting in a decline in its drainage function, making the hydrostatic pressure behind the wall too large, and there is a potential safety hazard for the retaining wall to collapse

3. Under the action of water erosion, the compactness of the soil will be damaged after the mud behind the wall is washed out of the wall, and the soil may be in danger of collapsing, causing damage to the buildings above the soil and causing huge economic losses

4. The mud and mortar flushed from the pipeline will affect the traffic of vehicles and pedestrians beside the road

[0004] Therefore, in order to solve the problem of the design defect of the traditional retaining wall drainage pipe, and to solve the problems that the drainage pipe is easy to block and easily carry out mud, etc., there is an urgent need for a new type of retaining wall drainage pipe that is convenient for construction and low in cost for drainage and sand filtration.

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