基坑开挖对邻近高架桥的影响分析OA

In accordance with urban development planning requirements,flood control facilities are sometimes unavoidably located near elevated expressways,and their construction inevitably impacts the safe operation of these structures.Based on the excavation project of a municipal regulation and storage facility,this paper compares,analyzes and designs feasible pre-pit excavation and pipeline construction plans,and provides a monitoring plan for adjacent bridge structures.Through numerical simulation and on-site monitoring methods,the deformation laws of the formation and bridge caused by engineering activities such as pre-pit excavation,pipeline foundation pit excavation and pipe jacking construction are studied;Finally,the impact of pipeline foundation pit,pre-pit excavation and pipe jacking construction on the bridge is discussed.