Formation Mechanism and Stability Analysis of Typical Accumulation Landslide in the Three Gorges Reservoir

摘要

Taking the typical gravel soil accumulation landslide - Huang Lianshu landslide for study, the paper presents a deep analysis of formation mechanism and for deformation characteristics rainfall-induced landslide, to the measured terrain data, survey data, test data as the basis, the use of geoscience simulation software GeoStudio the SEEP / W module and SLOPE / W module to establish the appropriate geological model set different conditions based on rainfall-induced landslides and landslide stability calculation in different conditions. Stability calculated landslide and heavy rain storm was a significant positive correlation, the smaller the stability of ≤60mm cumulative rainfall landslide, rainfall for ≥90mm sensitive response, disaster mechanism of the landslide and the destruction process of the class landslide Hazard prevention disposal and provided valuable experience.