摘要
以金泽水库新增取水泵站泵房段基坑为研究对象,基坑采用钻孔灌注桩+两道混凝土支撑围护型式,通过现场监测与数值模拟分析研究基坑开挖过程中对现有取水闸的影响,主要分析基坑开挖过程中取水闸处的地表沉降及水平位移,结果表明:基坑在开挖至坑底时地表沉降及水平位移出现峰值,数值模拟的结果与现场监测结果非常接近,基坑开挖对取水闸的稳定及功能基本没有影响。
Taking the foundation pit of the pump room section of the newly-added water intake pumping station of Jinze Reservoir as the research object,the foundation pit adopts the type of bored pile and two concrete supports.This paper studies the excavation process of the foundation pit through field monitoring and numerical simulation analysis.The main analysis of the impact of the existing water intake gate in the excavation process of the foundation pit is the surface settlement and horizontal displacement at the intake gate.The results show that the surface settlement and horizontal displacement peak when the foundation pit is excavated to the bottom of the pit,which is numerically simulated.The results are very close to the on-site monitoring results,and the excavation of the foundation pit has basically no effect on the stability and function of the water intake gate.
作者
王爽
Wang Shuang(Shanghai Survey Design and Research Institute Co.,Ltd.,Shanghai 200434,China)
出处
《陕西水利》
2022年第1期11-13,共3页
Shaanxi Water Resources
关键词
监测
数值模拟
深基坑开挖
周边建筑物
影响分析
Monitoring
numerical simulation
deep foundation pit excavation
surrounding buildings
impact analysis
