Excavation Deformation Characteristics of Super Large Excavation in Coastal Deep Soft Soil
In order to study the deformation characteristics of excavation of subway station in deep soft soil stratum in Zhejiang area,taking the coastal deep excavation at Shenjiamen side of Zhoushan City as the engineering background,the monitoring results of groundwater level,surface settlement and surrounding building settlement of excavation constructed by open excavation method are analyzed and summarized.The results show that the decline of groundwater level is mainly affected by seaside tides,the settlement of surrounding surface and buildings is affected by ground overloading and leakage of underground diaphragm wall,and the surface subsidence leads to cracks in the surrounding buildings.
deep excavationgroundwater levelsettlementoverloadingleakage