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《Chinese Journal of Underground Space and Engineering》 2013-03
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Social Environment Risk Control for Expanding Excavation of Long-span Subway Station

Yi Li,Zhang Jinyi(Beijing Urban Engineering Design & Research Institute Co.,Ltd,Beijing 100073,China)  
This paper based on Xiaoshizi subway station of Chongqing Metro Line 1 crossing the buildings under ground,gives a detailed description on risk controlling of metro station crossing buildings,including the risk source analysis,risk control target and risk control measures.Analysis on two excavation methods by FEM software,with applying numerical simulation based on plane model,gives the stress nephogram of surrounding rock and the largest settling curve of surface for two excavation methods.According to the analysis result and requirements of risk controlling,we recommend whole section expanding excavation method for the station,aiming at offering reference to the similar projects.
【CateGory Index】: U231.3
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