摘要
Abstract
Based on the foundation pit project of Ruyifang Station of Guangzhou Railway Transportation Line 11,which is 24.5 m away from the Pearl River at the closest distance,the thickness of the sand layer is about 17.0 m,the water table is high,the foundation pit is in anisotropic shape,and it is constructed by the open excavation and smooth working method.By analyzing the safety risks in the investigation stage,design stage and construction stage,putting forward effective control measures,strictly controlling the construction quality of the enclosure structure during the construction process,refining the sequence of pit excavation and excavation steps,scientific descending,rapid construction of the structure and other technical and managerial measures,it ensures that the deformation and settlement of the foundation pit construction and operation station are safe and controllable,and that the whole station is successfully completed.关键词
地铁车站/富水砂层/异形深基坑/监控量测/沉降变形/快速施工/应急处置/风险控制Key words
subway station/water-rich sand layer/shaped deep foundation pit/monitoring and measurement/settlement and deformation/rapid construction/emergency disposal/risk control分类
交通工程
