Influence Analysis and Countermeasures of Drainage Box Culvert Crossing Subway Section
The excavation of foundation pits above the existing operating subway section will change the original stress state of the subway section and produce additional stress and deformation.Based on the municipal drainage box culvert project of a subway section in Nanjing,the process of foundation pit excavation and backfilling was simulated and analyzed by using MADIS finite element software,and the influence of earthwork partition and block and overall excavation on the deformation of the lower section structure is studied.The research in this paper shows that the deformation of the lower section can be effectively controlled through the reasonable zoning scheme,so as to ensure the operation and structural safety of the subway.Combined with the actual monitoring data,this approach can be verified,which provides valuable reference for the construction of similar projects.
different excavation methodspartition and blocksectiondeformation
万方数据
维普
