深基坑工程回灌管井设计若干问题探讨

Discussion on the Design of Recharge Well for Deep Foundation Pit Engineering

摘要:

针对深基坑工程回灌管井设计中的一些问题进行了探讨，根据不同回灌目的，将基坑工程地下水回灌分为基于环境控制和基于水资源保护这两类不同控制要求的地下水回灌，同时阐述了这两种不同回灌模式下的控制原则、定水头回灌与定流量回灌模式的选取原则、极限回灌压力及设计最大回灌压力的计算、最大安全回灌水头和最大可回灌量的确定方法以及回灌井开启时间的设定等回灌管井设计问题。

Abstract:

Discussion is made on some problems in the design of recharge well for deep foundation pit engineering, according to different recharge purposes, groundwater recharge for foundation pit engineering is based on environmental control and water resource protection; the control principle, selection principles of constant recharge and constant flow recharge modes, calculation of limit pressure and designed maximum recharge pressure, maximum safe recharge water head and determination method of maximum recharge amount as well as recharge well opening time setting are elaborated.