This paper is based on the deep foundation pit excavation project of the Hangang Station of Wuhan Metro Line 12,and applies the covered top-down excavation method for deep foundation pits to carry out main structure construction.In order to study the change laws of ground settlement,building settlement and under-ground diaphragm walls in the process of excavating foundation pits,this paper adopts the methods of numerical simulation and field monitoring to systematically analyze them,and puts forward corresponding optimization mea-sures.The results show that with the increase of the excavation depth of deep foundation pits,the settlement vol-ume of the ground surface,buildings and underground diaphragm walls around foundation pits is increasing,so it is necessary to take preventive measures in the key stage of the construction process.
关键词
深基坑/盖挖逆作法/基坑开挖/数值模拟/周边环境
Key words
Deep foundation pit/Covered top-down excavation method/Foundation pit excavation/Numerical simulation/Surrounding environment
维普
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