The construction of foundation pit in soft soil area is very difficult and the risk is high.Based on the super deep foundation pit project in Shanghai core area,combined with the subway protection requirements,through targeted protection design for the deep foundation pit near the subway,and strengthening the process control of the foundation pit construction,the subway structure is well protected while ensuring the smooth implementation of the foundation pit project.Engineering practice shows that a series of safety protection measures adopted in the design are reasonable and reliable,which can provide reference for similar deep foundation pit projects.
关键词
地铁/深基坑/分坑技术/支撑体系/数值模拟
Key words
subway/deep foundation pit/pits allocation/supporting system/numerical simulation