Method for calculating displacement and discharging time in dynamical precipitation process of pressure-load fully penetrating well or well group

Abstract

The invention discloses a method for calculating displacement and discharging time in a dynamical precipitation process of a pressure-load fully penetrating well or a well group. The method comprises the following steps of: integrating a precipitation area on basis of a given formula for calculating the displacement per day when a water level is remained and stabilized in the precipitation process of the pressure-load fully penetrating well or the well group; and establishing a specific calculation method of the displacement and the discharging time in a process that an underground water level of the pressure-load fully penetrating well or the well group is changed from an original water level to a target water level. According to the method provided by the invention, the current condition that the displacement calculation in a water level variation stage depends on the experience for a long time when the pressure-load fully penetrating well or the well group is designed is changed, so that the calculation and the dynamic control of the displacement of the full precipitation process of the pressure-load fully penetrating well or the well group in engineering construction can be realized.

Description

technical field [0001] The invention relates to a calculation method suitable for engineering construction dewatering and drainage, in particular to a calculation method for dewatering and drainage time in the process of dynamic dewatering of pressure-bearing intact wells or well groups. Background technique [0002] The purpose of foundation pit dewatering is to reduce the groundwater level below a certain depth requirement, which can satisfy the construction of the foundation pit structure without water interference, thereby reducing the difficulty of construction, and ensuring the excavation and structure of the foundation pit to the greatest extent. construction safety. [0003] At present, a lot of research has been done on the daily displacement when the precipitation is maintained at a certain stable water level at home and abroad. In terms of theory, according to the stable and unsteady seepage movement in the confined aquifer, the corresponding groundwater movement...

AI Technical Summary

Problems solved by technology

However, there is no relevant calculation method at home and abroad for the daily precipitation during the dewatering process of complete pressure-bearing wells or well groups during engineering construction. At present, there is no relevant calculation method at home and abroad. Constant adjustments are made to the final determination of the specific displacement, which will have a certain impact on the construction period and cost of the project.

[0004] Generally speaking, the daily precipitation during the dewatering process of the complete pressurized well or well group during the construction of the project depends on the experience of the engineering and technical personnel, and cannot meet the requirements of the project construction dewatering.

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