Comprehensive experimental study on prevention of land subsidence caused by dewatering in deep foundation pit with hanging waterproof curtain
- 1Shanghai Institute of Geological Survey, Shanghai, 200072, China
- 2Key Laboratory of Land Subsidence Monitoring and Prevention,Ministry of Land and Resources, Shanghai, 200072, China
- 3Shanghai Engineering Research Center of Land Subsidence, Shanghai, 200072, China
Abstract. Land subsidence caused by dewatering of deep foundations pit has currently become the focus of prevention and control of land subsidence in Shanghai. Because of the reliance on deep foundation dewatering pit projects, two comprehensive test sites were established to help prevent land subsidence. Through geological environmental monitoring during dewatering of a deep foundation pit, the analysis of the relation between artesian water level and soil subsidence, some basic features of land subsidence caused by dewatering of deep foundation pits are elucidated. The results provide a scientific basis for prevention and control of land subsidence caused by dewatering in deep foundation pits.