Shallow-layer underground water collection and drainage system and construction method

Abstract

The invention discloses a shallow-layer underground water collection and drainage system and a construction method. The shallow-layer underground water collection and drainage system comprises a water collection cabin, a water collection well, a water storage structure and a drainage pipe. The water collection cabin comprises cutoff walls located below the ground, the cutoff walls are enclosed to form a closed cabin body, and the cabin body is provided with a water inlet and a water outlet. The water collection well comprises an inlet and an outlet, the inlet is formed in the water collection cabin, and the outlet stretches out of the ground from the water outlet of the water collection cabin. The water storage structure surrounds the outside of the well wall of the water collection well, stretches in the direction from the inlet to the outlet and can support the cutoff walls located above the water collection well. The drainage pipe communicates with the water collection well and the outside and is connected with a drive mechanism which is used for driving the drainage pipe to conduct drainage. By means of the shallow-layer underground water collection and drainage system and the construction method, underground space can be fully utilized to collect water burst or underground water, stability of an inner dumping site is improved, and ground surface space can be effectively utilized.

Description

technical field [0001] The invention relates to a water collection and drainage system, more specifically, to a shallow underground water collection and drainage system and a construction method. Background technique [0002] Mine water gushing is one of the common problems in the mining process. Mine water gushing has brought certain difficulties to tunneling, coal mining, and mechanical and electrical equipment management. If it is not dealt with in time, it may cause accidents such as landslides, and there is a great potential safety hazard. [0003] In order to avoid a serious impact on mining, water collection wells are usually set up in places with large water inflows in the mining area (such as in the internal dumps of open-pit coal mines, and at the water inflows of internal dumps and Bianbang) to collect the inrush water into the collection wells Inside, and then concentrated discharge or use. The water collection well is drilled downward from the surface, and a r...

AI Technical Summary

Problems solved by technology

If the location of the water collection well is not set properly, the area of ​​the water collection well above the surface is relatively large and vehicles cannot pass through, so they can only detour to other routes, which brings great inconvenience to transportation such as soil discharge, and increases the transportation distance and transportation. cost

The depth of the well is usually 5-15m, which makes the adaptability of the water collection well to the water level relatively poor

If the depth is increased, it will not only increase the amount of work, but also increase the construction cost

Moreover, the sediment content of gushing water is relatively large, which can easily cause blockage of drainage pipes or equipment, and cannot be drained in a timely and effective manner. It is necessary to arrange personnel for equipment maintenance

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