3Wang G G, Yan P, Gong X N. Research on the seep- age field of excavation with waterproof structure [ J ~. Ind Constr. 2001, 31(4): 43-45.
4Wang J X, Hu L S, WU L G, et al. Hydraulic barrier function of the underground continuous concrete wall in the pit of Metro station and its optimization [ J ]. Envi- ronmental Geology. 2009, 57:447-453.
5Zhou Nianqing, Pieter A V, Lou Rongxiang, et al. Nu- merical simulation of deep foundation pit dewatering and optimization of land subsidence controlling [ J ]. Engineering Geology. 2010, 116(3-4) : 251-260.