Sand-free precipitation well and construction method thereof

Abstract

The invention relates to a sand-free precipitation well and a construction method thereof in the field of precipitation projects. The sand-free precipitation well comprises a well pipe (1), a water filtering film (2), a water converging groove (3) and a water outlet channel (5), wherein the water converging groove (3) is located between the well pipe (1) and the water filtering film (2), and the water converging groove (3) is communicated with the well pipe (1) through the water outlet channel (5). The sand-free precipitation well can be directly inserted into a completed soil body well and is plug and play, a well washing process is not needed, the construction speed is high, the construction cost is low, the quality is good, no slurry is produced in the construction process, and the benefit of environmental protection is good.

Description

technical field [0001] The present invention relates to the field of precipitation engineering in the field of geotechnical engineering. Background technique [0002] In the construction or maintenance of underground engineering, it is often accompanied by precipitation engineering to facilitate engineering construction or maintenance by lowering the groundwater table or pressurized water head. For example, in the foundation pit project, it is often accompanied by the dewatering project. For example, in the anti-floating project, the groundwater table can be lowered by precipitation to reduce the buoyancy. In the leak plugging project, the water head difference of the leak can also be reduced by dewatering. Existing dewatering wells generally use well pipes for dewatering or light well point dewatering. The structure of dewatering wells generally includes three parts: well pipes, filter screens and filter materials. The well pipe can be a tubular structure such as partially...

AI Technical Summary

Problems solved by technology

The existing precipitation structure uses a large amount of sand, and the diameter of the hole is large. During the construction process, mud is often produced, and the well washing process is often required. The cost is high, the construction speed is slow, and quality problems such as dead wells are prone to occur.

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