The Disaster Mechanism And Stability Evaluation Of Hanhe Landslide

Abstract Base on the treatment project Han he landslide, the mechanism of rainfall-induced landslide was carried out. SRM was used to analyze the stability of the landslide in the natural state and the rain state. The influencing factors of the landslide and the safety and stability of the landslide were analyzed. The research results are as follow: (1) Han he landslide body is developed in Wu dong Huang dong kou Formation (∈h) mudstone and silty mudstone, so the rock is highly weathered and easily softened by water. (2) According to this survey and the stability calculation, it shows that the Han he landslide is in an unstable state during heavy rain, and the shallow landslide is in unstable state. The theoretical analysis is basically consistent with the numerical results. (3) Stress is on the front edge of the landslide concentrated in the dangerous area, the landslide may continue to slide, and the trailing edge steep wall may also gradually collapse on a small scale. It is recommended to improve the drainage system and treatment measures as soon as possible. The mechanism of the landslide can provide engineering reference for the treatment and prevention of similar landslides.