Analysis of the Influence of Excavating Deep Foundation Pits with the Covered Top-Down Excavation Method on Ground Surface Settlement
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.
Deep foundation pitCovered top-down excavation methodFoundation pit excavationNumerical simulationSurrounding environment
万方数据
维普
