Study On The Stability Of Deep Foundation Pit Slope And The Bearing Characteristic Of Foundation Of The Shanwan Hydroelectric Power Station

Building hydraulic and Hydroelectric projects on deeply overburdened area faces the pivotally technologcial problems such as the stability of deep foundation pit slope, the structural security of concrete cutoff wall and the bearing characteristic of foundation.how to scientificly analyse and demonstrate these problems directly connects to the security and investment of the projects.The deep foundation pit of the workshop of Shawan Hydroelectric PowerStation faces the problems such as big area, complicated hydrological and geological engineering conditions, the deep distance digging and long runtime.So this paper uses the nonlinear finite element method and rigid body limit equilibrium method to systemicly research the plastic concrete cutoff wall'work character and the stability of deep foundation pit slope. And also use the nonlinear finite element method to analyze the workshop bank's bearing characteristic of foundation. The main achievements are obtained as follows in this paper:1. Based on the slope's topographic and geological conditions of the deep foundation pit of the workshop of Shanwan Hydroelectric Power Station and the characteristic of th cutoff wall, the integral calculation model based on nonlinear finite element method and the rigid body limit equlibrium method is established, the unfavorable factors such as cutoff wall and overburden are payed more attention to simulation.2. The nonlinear finite element method is used to study the cutoff wall'...