As analyzing the interaction of water-soil coupling field

we take soil mass as elastoplastic material. Based on nonlinear constitutive relation

the finite element equation of rock considering seepage field can be obtained. The 3-D water-soil coupling mathematical model about dewatering of foundation pit is established; and the different geological model such as groundwater bearing bed

artesian aquifer water bearing bed and exceed flow alimentation artesian aquifer water bearing bed and every engineering condition such as embedded depth of filter tube and depth of stop water heavy curtain are calculated and treated. Taking the International Stock Exchange Hotel in Wuhan for example

the dewatering process of foundation pit is calculated by 3D finite elements. The three-dimension numerical simulation method can be applied to model impervious curtain

anisotropy and non-homogeneous

confined-unconfined water in practical engineering conditions and geological model

which are hard to solve in analytical method.