Method for monitoring dynamic water level in precipitation well

Abstract

The invention relates to a method for monitoring dynamic water level in a dewatering well. The method comprises the following steps: (1) monitoring original geological conditions around the dewatering well before foundation pit dewatering construction; (2) dynamic water level in the dewatering well is dynamically monitored in the foundation pit dewatering construction process, meanwhile, the stratum condition around the dewatering well is continuously monitored, and monitoring data are collected and analyzed in real time; (3) calculating the comprehensive influence condition of the dynamic water level according to the collected data; (4) according to the comprehensive influence condition of the dynamic water level, the dynamic water level in the dewatering well is properly adjusted, so that construction safety is guaranteed; and (5) compiling a monitoring report. According to the method, the dynamic water level in the dewatering well can be dynamically, accurately and reliably monitored in real time, the working stopping time of the dewatering well is determined, the stability of the foundation pit is ensured, settlement of the ground surface around the foundation pit is controlled, and the influence of foundation pit construction on the environment is reduced.

Description

technical field [0001] The invention relates to the technical field of underground engineering construction, and relates to a method for monitoring the dynamic water level in a dewatering well. Background technique [0002] In recent years, the underground foundation pit project has developed to a large depth and a large area, and the groundwater problem has become more and more serious. As a result, the foundation pit is unstable, and the control of the groundwater level has become the key to the smooth progress of the entire foundation pit project. [0003] In deep foundation pit dewatering engineering, how to set up dewatering wells reasonably is the key to success. Foundation pit dewatering means that when the foundation pit is excavated, the groundwater level is higher than the bottom of the excavation, and the groundwater will continue to seep into the pit. Pit bottom piping and the bearing capacity of the foundation decrease, a dewatering well pipe is buried outside...

AI Technical Summary

Problems solved by technology

[0004] However, during the existing foundation pit dewatering construction process, the control of the dynamic water level in the dewatering well is poor. Due to the lack of relevant equipment and technology, there is no measurement and monitoring of the dynamic water level in the dewatering well, and the dewatering cannot reach the design elevation, which affects the construction progress. And if there is too much precipitation, the ground around the foundation pit will have a certain degree of settlement and deformation, which will affect the construction quality and the surrounding environment.