Stability Analysis On Side Slope In The Spillway Chute Pubugou Hydroelectric Power Station Under Different Function Of Releasing Floodwater

Pubugou Hydroelectric Power Station is an important project for 15 plans of the nation, and Si-chuan Province key project to implement development of western regions too. it will exert an important influence on the stability of the bank slope in the reservoir area accompanied with hydroelectric Power Station store water and after the released floodwater atomization. Thereby, it is not only an complicated theory problem but also an important application of engineering that to percolation characteristic, water rock interaction and stability question of the bank slope under different function of releasing floodwater in atomized period.This paper takes daduhe pubugou hydroelectric power station as the backgroud, and begins with geological environment and project condition of side slope in the spillway chute, analyse the combination of the rock in slope, the structure of rock mass, the evidence of deformable destruction in the period of project excavation and at the foundation of the mechanism, in deserving to in detail, yield the mode of deformable destruction, namely, the clump destabilization, the pull crack leaded by glide and key factor influences permanent stability of slope.: topographical landform, structural feature of slope, unreasonable excavation and blasting, rainfall and atomizing. And then do a deep research in the mechanism of action of the atomized rain effect the slope rock mass deformation in different period during the atomized process of releases floodwater, study change feature of the groundwater level of the slope, the character of seepage flow and variation tendency of displacement field after the flow catenation during the atomized process of releases floodwater, using FLCA3D software study the stress field feature of slope from natural state, excavate state and under the atomizing and development trend of deformation.