摘要
对悬挂式止水帷幕影响机理进行深入研究,以大井法为基础,结合地下水渗流理论推导出悬挂式降水工况下基坑涌水量的理论计算公式,并通过工程实例进行计算验证。计算结果表明,该方法具有较高的精度,可高效准确地根据前期抽水试验提供的试验结果估算悬挂式降水工况下的基坑涌水量,对现行的基坑降水设计理论加以改进和完善。
Based on the large well method,through the in-depth study of the influence mechanism of the suspended water stop curtain,combined with the groundwater seepage theory,the theoretical calculation formula of the foundation pit water inflow under the condition of suspended dewatering was derived.Through the numerical calculation of the engineering example,this method had high precision,and the suspended dewatering condition was efficiently and accurately estimated with the limited known conditions in the early stage of the foundation pit,therefore the current foundation pit dewatering design theory could be improved and perfected.
作者
贺翀
金芸芸
HE Chong;JIN Yunyun(Shanghai Shenyuan Geotechnical Engineering Co.,Ltd.,Shanghai 200011,China)
出处
《隧道与地下工程灾害防治》
2020年第1期91-96,共6页
Hazard Control in Tunnelling and Underground Engineering
基金
上海市人才资金资助项目(2017025)
关键词
悬挂式降水
基坑涌水量
大井法
源汇法
抽水试验
suspended dewatering
water inflow of foundation pit
large well method
source-sink method
pumping test
作者简介
贺翀(1980—),男,江西萍乡人,博士,高级工程师,主要研究方向为岩土工程、地下工程.E-mail:118105395@qq.com
