| The power stations of Dadu River's Shuang Jiangkou will be built. Ying Geluo, Shi Guangdong and Da Shidang Gladoflurial deposit slops are dosed from dam site. The slope's stability of the Gladoflurial deposit will influence the security of the power station until reservoir complete.The groundwater influences the slop's stability greatly. To the slope in the reservoir, the effection of the groundwater is more special.Through investigating in the Shuang Jiangkou and comparing with experience data in the past, confirmed the slop's parameter of rocks and soils physics mechanics.Based on Boussinesq equation, has acquired the method to calculate the water table with reservoir's water level change. Through limiting equilibrium method has calculated the Gladoflurial deposit slop's stability under several kinds of situation.Utilizing the software of ANSYS completed Ying Geluo slop's finite element calculating. Based on stress result of the finite element, has calculated the plasticity district within the body of slope and safety coefficient under several kinds of situations.The result of calculation indicates: The stability of the slope will be reduced after the conservation of the reservoir. Da Shidang Gladoflurial deposit slops will lost steadily under the mode of the torrential rain when not holding water in the reservoir. Ying Geluo and Shi Guangdong Glacioflurial deposit slops, will lose steadily under the several mode and water level. While water level dropping fast, the stability state of the slopes obviously becomes bad. As time goes on, this kind of situation will become badly.Because of the speed of the water table drop is slower than water level of the reservoir's, so the slop's stability will in the worst state when it is in the latter stage of each dry season.
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