Calculation and Design Analysis for Precipitation of Super-deep Foundation near a River:a Case Study

Water inflow,dewatering well quantity and arrangement,together with its structure design of the working well foundation of Changjing tunnel in Meizizhou,Nanjing,were discussed in this paper,according to its engineering characteristic.Based on the above presented work,the surface and building subsidence induced by foundation pit dewatering was calculated and some corresponding measurements were proposed to benefit the similar projects in future.