Temporary Confined Water-Induced Landslide in the Binary Structure of a Gentle Slope: A Case Study of the Fanshantou Landslide

With the increase in rainfall, landslides occur on many gentle slopes mountainous areas of southeast China. Gentle have a particular dual geological structure, i.e., lower part is gravel soil layer with good water permeability, and surface clay relatively poor permeability. Under conditions heavy slope this structure likely to collect temporary confined water. The intermittent creep upper caused by floating force water, which causes landslide disasters. that bring about are related not only stratum but also rainfall intensity initial height table level. On basis characteristics front Fanshantou Mountain, we constructed hydrological model GEO-STUDIO. We investigated effect different intensities levels under continuous conducted corresponding stability analysis. results show when both level high, formed rapidly, increasing chance disaster. research provide theoretical for treatment similar