南疆地区基坑降水渗透系数研究及降水方案设计

The Study on Foundation Pit Dewatering Permeability Coefficient of the Southern Border Region and the Dewatering Plan

选取南疆地区几个有代表性的基坑降水工程,采用一个抽水井和两个观测孔的潜水非完整井抽水试验方案,利用多种计算方法,通过综合分析对比来确定各地段含水层的渗透系数;并结合上述成果,对其中的一个基坑降水工程进行了降水井设计,降水效果良好。

We chose a few representative dewatering project in the southern region, used a pumping well and two observation wells submersible well pumping test program, made use of a variety of calculation methods, determined the permeability of the aquifer around the segment through a comprehensive analysis and comparison. Based on these, we conducted a dewatering well design for one dewate- ring project and achieved good effect precipitation.