西北水电Issue(2)：19-25,7.DOI:10.3969/j.issn.1006-2610.2024.02.004
里底水电站库区巴迪滑坡蓄水前后稳定性评价
Stability Evaluation of Badi Landslide in the Reservoir Area of Lidi Hydropower Station before and after Water Storage
摘要
Abstract
Aiming at the Badi landslide on the right bank of Lidi Hydropower Station in the upper reaches of Lancang River,the formation mechanism is analyzed to be toppling creep deformation and the limit equilibrium method is used to calculate the stability of the landslide before and after the reservoir is impounded.The results show that before the reservoir impoundment,the whole landslide is in a stable state.After impoundment,the whole landslide is still stable under natural and rainstorm conditions,but under rainstorm and earthquake conditions,the stability of slope front edge is poor.The equipment monitoring of the landslide after water storage shows that:the maxi-mum period of groundwater level rise and deformation rate of the landslide is within 10 months after the reservoir's water storage,and thereafter it shows a creep state.The failure model of the landslide is Flaky bank collapse in the steep slope section of the front edge(1 885.00～1 900.00 m);the possibility of overall sliding at the leading edge is very low.关键词
成因机制/倾倒型蠕滑变形/极限平衡法/稳定性评价Key words
formation mechanism/toppling creep deformation/limit equilibrium method/stability evaluation分类
天文与地球科学引用本文复制引用
叶欣玲,司富生,胡华,鲁蕊..里底水电站库区巴迪滑坡蓄水前后稳定性评价[J].西北水电,2024,(2):19-25,7.基金项目
国家自然科学基金(41907246). （41907246）
