摘要
基坑工程处于流量较大的江河附近时,江河水位变化将会直接影响建筑场地地下水位的高低,从而决定基坑内水位降深。本文以某地深基坑开挖为例,遵循实际场地情况,通过有限元软件Midas GTS NX建立5组不同初始地下水位数值模型,来分析江河水位变化(即不同初始水头)下基坑降水对于地连墙的水平位移及地面沉降的影响,以对今后临近江河的类似基坑工程的开挖作出指导。
When the foundation pit works in the vicinity of a large flow of rivers, the changes of water level will directly affect the groundwater level at the construction site, thereby determining the drawdown of the water level in the foundation pit. In this paper, a deep excavation taken as an exam- ple, according to the actual situation of the ground, a numerical model of underground water at 5 different construction sites are established through the finite element software Midas GTS NX, to analyze the effects of the rivers water level changes on the horizontal displacement of the supporting structures and ground subsidence, which will give the guidance on the excavation of the foundation pit engineering.
作者
雷华
LEI Hua(Guangzhou City Polytechnic, Guangzhou 510006, China)
出处
《低温建筑技术》
2018年第3期150-152,157,共4页
Low Temperature Architecture Technology
关键词
基坑工程
基坑降水
初始水头
地连墙
地面沉降
foundation pit engineering
dewatering of foundation pit
initial water head
supporting structure
ground subsidence
