摘要
水文地质参数是富水区域地下结构设计不可缺少的重要指标。临江地层复杂,计算确定透水层水文地质参数存在一定的难度。以南京越江隧道工程深达44.45m的超深基坑为例进行抽水试验,利用所观测数据采用传统的解析法公式和数值法进行参数反演分析,对目的含水层进行水文地质参数求取,并通过观测水位数据对所求参数进行修正,取得了比较符合实际的水文地质参数。本试验为基坑开挖提供了所需的水文资料,取得了良好效果。
Hydrogeological parameter is an important index of underground structure design in water - rich stra- ta. It is difficult to determine hydrogeological parameters in complex strata. This article takes the pumping test of the deep excavation with 44. 45 m in Nanjing tunnel engineering for example. The traditional analytical method and nu- merical method are used to back analyze the parameter , and the hydrogeological parameters of aquifer are obtained. The actual hydrogeological parameters are obtained, and the necessary hydrological data is provided for excavation of foundation pit.
作者
张祥龙
张伟
Zhang Xianglong;Zhang Wei(Research Center of Geotechnical and Structural Engineering,Shandong University,Jinan 250061;Dean＇s Office,Shandong TV University,Jinan 250061;China Railway 10 Bureau Group Co.,Ltd.,Jinan 250032)
出处
《工程建设》
2018年第7期6-11,17,共7页
Engineering Construction
关键词
超深基坑
抽水试验
含水层参数
super-deep foundation pit
pumping test
parameters of aquifer
