Multipurpose dewatering well structure and manufacturing method thereof

Abstract

The invention relates to a multipurpose dewatering well structure. A decompression well solid pipe and a decompression well filter pipe are cylindrical, have A same diameter and are sequentially connected from top to bottom to form a decompression well pipe. A drainage well solid pipe and a drainage well filter pipe are cylindrical, have a same diameter and are sequentially connected from top to bottom. A connector of the drainage well solid pipe and the drainage well filter pipe is arranged outside the decompression well solid pipe in a sleeving manner and is fixedly connected with the decompression well solid pipe, and an annular space between the connector and the decompression well solid pipe forms a drainage well pipe. In a formed well hole, clay is arranged on the periphery of the top of the drainage well solid pipe, a sealing steel plate set is welded to the bottom of the drainage well filter pipe for bottom sealing, layered water stop materials are arranged on the lower portionof the sealing steel plate set, gravel is arranged between the clay and the layered water stop materials, and gravel is arranged on the lower portion of the layered water stop materials and located around the decompression well filter pipe and the decompression well solid pipe. The clay, the layered water stop materials and the gravels are used for fully supporting the well hole. Multiple layersof underground water can be extracted in a layered control mode after one-time hole forming and well forming.

Description

technical field [0001] The invention relates to a dewatering well, in particular to a multipurpose dewatering well structure and a manufacturing method thereof. Background technique [0002] At present, most of the diving wells are drainage wells, and the confined water is a decompression well, and the diving and the confined water are layered for precipitation in different periods; the other is the mixed well diving and the confined water pumping at the same time. The former method requires a lot of work to complete the well, requiring multiple wells, a long construction period, and high costs; the latter method requires a large amount of precipitation, especially for confined water, which needs to be pumped in advance, and the ground subsidence around the pit caused by precipitation has a greater impact big. Contents of the invention [0003] The purpose of the present invention is to provide a multi-purpose dewatering well structure, which can form a hole at one time t...

AI Technical Summary

Problems solved by technology

The former method requires a large amount of work to complete the well, requiring multiple wells, a long construction period, and high costs; the latter method requires a large amount of precipitation, especially for confined water, which needs to be pumped in advance, and the ground settlement around the pit caused by precipitation has a greater impact Big

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