宁波市轨道交通1号线一期工程抽水试验分析

ANALYSIS OF PUMPING TEST ON THE FIRST PHASE OF NO.1 IN NINGBO URBAN RAIL TRANSIT

摘要: 对宁波市轨道交通1号线一期工程勘察进行水文地质抽水试验,包括单孔抽水试验和多孔抽水试验。根据试验适用的环境及条件的不同,运用单孔抽水、多孔抽水及水位恢复计算公式,获得了典型站点主要含水层的渗透系数,在此基础上,得出全线各站点含水层的渗透系数,从而为拟建车站的基坑开挖和降水设计提供依据。

Abstract: The pumping tests on the hydrogeology,including one-drill pumping tests and multi-drill pumping tests,were carried out for the first phase of No. 1 in Ningbo Urban Rail Transit.According to the differences of environment and conditions,the formulas for one-drill,multi-drill pumping and water level recovery,were applied to obtain the permeability coefficients of the main aquifers in the typical sites.In the end,the permeability coefficients of the aquifers along the line were came up with,that put forward the basis for excavation and dewatering of the planned stations.