Dewatering Technology in the Vicinity of Multiple Subway——A Case Study of Dewatering for Shanghai Shanda Foundation Pits

Abstract:

In dewatering near multiple subway tunnels sensitive to ground subsidence and displacement, recharge measures are often taken to control the confined water. In such a case, it is necessary to overcome hazards caused by the confined water, such as water inrush, and also reduce the harm to the surrounding building (structures). This paper discusses the ultra-deep foundation dewatering technology based on the successful case of Shanghai Shanda dewatering recharge works close to Metro line 2, 4, and 9.