Foundation pit inner penetrating bottom plate precipitation well plugging construction method

Abstract

The invention discloses a foundation pit inner penetrating bottom plate precipitation well plugging construction method. The method comprises the steps of manufacturing and installation of a steel sleeve, all construction stages of tube well precipitation, preparation work of well plugging, precipitation well plugging and the like. According to the method, construction is convenient, and the effect is good. The problem that due to the fact that a precipitation well is reserved, leakage occurs to a foundation bottom plate is solved very well. The well plugging method is economical, practical, simple and easy to perform, and suitable for plugging of most penetrating bottom plate precipitation wells.

Description

technical field [0001] The invention relates to a plugging construction method for a bottom plate penetration well in a foundation pit. Background technique [0002] As the excavation depth of the foundation pit continues to increase, the construction unit must set up a dewatering well to dewater to ensure the safety of the foundation pit. In the construction stage of the basement, in order to lower the groundwater level and prevent the floor from floating, the groundwater level must be lowered below the design elevation according to the design requirements. However, after the construction of the basement floor is completed, the dewatering well needs to continue pumping and needs to be retained, so the dewatering well appears. The problem of blocking. There are also quite high requirements for the waterproof construction and plugging of the dewatering well. If it is not handled properly, there will be leakage around the bottom plate tube well, which will seriously affect th...

AI Technical Summary

Problems solved by technology

In the construction stage of the basement, in order to lower the groundwater level and prevent the floor from floating, the groundwater level must be lowered below the design elevation according to the design requirements. However, after the construction of the basement floor is completed, the dewatering well needs to continue pumping and needs to be retained, so the dewatering well appears. blocking problem

There are also quite high requirements for the waterproof construction and plugging of the dewatering well. If it is not handled properly, leakage will inevitably occur around the bottom plate tube well, which will seriously affect the normal use of the building.