Protection device for engineering dewatering well

Abstract

The invention provides a protection device for an engineering dewatering well, which relates to the technical field of underground engineering risk control and solves the technical problem of relieving the influence of external impact force on the engineering dewatering well. The device is characterized by comprising a hollow cylinder, a cushioning material and a sealed plate, wherein the hollow cylinder is formed by cohering two well tube protecting sleeve shells in opposite directions, and the shape and the size of the inner wall of the hollow cylinder are matched with the shape and the size of the outer wall of the engineering dewatering well; the cushioning material is filled between the inner wall and the outer wall of the hollow cylinder; and the sealed plate is covered and fixed at the top end of the hollow cylinder, and the shape and the size of the sealed plate are matched with the shape and the size of the top surface of the hollow cylinder. The device provided by the invention can reduce the damaged probability of the engineering dewatering well.

Description

technical field [0001] The invention relates to the technology of underground engineering risk control, in particular to a technology of protection equipment for engineering dewatering wells. Background technique [0002] In the construction of deep foundation pit engineering in soft soil areas, in order to meet the requirements of the anti-inrush stability of the bottom of the foundation pit and prevent engineering accidents such as water gushing, sand gushing or inrush at the bottom of the pit, it is usually necessary to place the foundation pit in the underlying confined aquifer. Set up engineering dewatering wells to depressurize and dewater the confined aquifer to reduce the water level of the confined water and strictly control the buried depth of the safe confined water level. In the process of precipitation, there are many risks of precipitation operation management, including the risk of precipitation operation management caused by the damage of engineering precipit...

AI Technical Summary

Problems solved by technology

These risks have a certain degree of suddenness and unpredictability. If no protective measures are taken, the engineering dewatering well may be suddenly damaged, thereby losing the decompression function of the confined water and causing a safety accident in the pit; and during the construction process If the damaged precipitation wells are not discovered and repaired in time, the precipitation effect will be affected and even cause foundation pit engineering accidents

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