%0 Journal Article %A BAI Jun-lei %A WANG Rui-hong %A WANG Le-hua %A TANG Kai-yu %T Stability Analysis and Reinforcement Optimization for an Excavated Rock Slope %D 2015 %R 10.3969/j.issn.1001-5485.2015.02.020 %J Journal of Yangtze River Scientific Research Institute %P 98-102 %V 32 %N 2 %X

The intake slope of the spillway tunnel of a hydropower station is a typical high steep rock excavation slope. Its stability has a significant impact on the safe construction and operation of the station. In this research, 3-D finite element model is established for the slope and stability analysis is conducted by using finite difference software. The stress, strain, and the size and distribution of plastic zone in natural condition, excavation and deloading condition, rainstorm and seismic conditions are comprehensively considered in the model. Furthermore, according to the safety factor from two-dimensional limit equilibrium calculation for typical profile, the slope stability is determined. Moreover, the reinforcement measures are optimized based on the stability calculation results.

%U http://ckyyb.crsri.cn/EN/10.3969/j.issn.1001-5485.2015.02.020