Analysis and Application of Landslide Surge Disaster Chain in Bianjiazhai Accumulation
Based on Bianjiazhai accumulation,the SPH-DEM coupling method,shallow water wave equation and Pan Jiazheng method are selected to calculate and analyze the landslide surge of the accumulation.By establishing a numerical calculation model,the characteristics of landslide surge and the propagation process of surge are calculated and analyzed.According to the three numerical calculation results,the analysis and disaster assessment of the landslide surge disaster chain of Bianjiazhai accumulation are carried out,and the disaster prevention measures are put forward.The results show that the daily decline of reservoir water level of Suofengying Hydropower Station is controlled within 3 m,which is more conducive to the stability of accumulation body and more power generation;The application of GNSS system can realize the automatic monitoring of the accumulation body change and timely warning.The research results can be applied to hydropower stations in the whole Wujiang River basin and other similar projects in China.