Dynamic Response and Deformation Behaviour of Kadui-2 Landslide Influenced by Reservoir Impoundment and Rainfall， Baoxing， China

作     者：Muhammad Kamran Xiewen Hu Muhammad Awais Hussain Muhammad Sanaullah Randa Ali Kun He 

作者机构：Faculty of Geosciences and Environmental Engineering， Southwest Jiaotong University College of Civil Engineering and Architecture， Zhejiang University Institute of Geology， Unversity of the Punjab 

出 版 物：《Journal of Earth Science》 (地球科学学刊(英文版))

年 卷 期：2022年

核心收录：

学科分类：081504[工学-水利水电工程] 081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 

基　　金：National key research and development program (2018YFC1505401) 

摘      要：This study focuses on the deformation characteristics of Kadui-2 landslide by the influence of reservoir filling-drawdown and precipitation. Three-year monitoring project was implemented in order to observe the short/long-term deformation. The slide mass experienced consistent deformation with a maximum cummulative displacement of 331.34 cm. Based on the recorded data of reservoir water level and precipitation during this period， a two-dimensional (2-D) finite element model using Geostudio software was set up for deformation simulation under different conditions to understand the real influence of these triggering factors on landslide. The Numerical simulation results are in consistent with monitoring field data. Both numerical simulation and field monitoring results exhibit that the maximum deformation occurred at the foreside of slumping mass. The slip surface shows significant creep characteristics decreasing as long-term shear strength reducing gradually. Reservoir water level fluctuation is the primary triggering factor to reactivate the landslide mass and has a negative correlation with deformation rate. Displacement rate increases with the reservoir drawdown and decreases with impoundment rise. Compared to reservoir filling-drawdown operation， rainfall has no significant effect on the slide motion of landslide since a limit penetration from the ground surface.