Analysis on the Influence of Excavation Construction of a Foundation Pit on Adjacent Railway
Based on the engineering background of a foundation pit adjacent to the existing high-speed railway line,the numerical simulation method is used to study and analyze the retaining structure and excavation construction of the foundation pit.The results show that the maximum settlement of the high-speed railway subgrade is-0.95 mm,the maximum displacement in the direction of the line is 0.63 mm,and the maximum displacement in the direction of the vertical line is 0.9 mm,all of which can meet the specified limit of 1 mm;strengthening the support and block excavation in the pit on the side adjacent to railway have been considered to effectively control the deformation of the foundation pit;through the differential design of the safety level of the side walls of the foundation pit,a win-win result of protecting the railway safety and realizing the investment control has been achieved.
foundation pit excavationsafety levelnumerical simulationdeformation control
NETL
NSTL
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