Evaluation of Landslide Disaster Mechanism and Control Scheme in Beixi Village

Abstract

Taking beixi village landslide as an example, the cause and mechanism of rain-induced landslide are deeply analyzed. The stability of landslide under natural state and rainfall state is analyzed respectively by using finite element strength reduction method, and the influencing factors of landslide are analyzed and the safety and stability of landslide is evaluated. The results show that :(1) The disaster mechanism of beixi village landslide is due to the strong water permeability of clay layer, and the weathering layer is easy to soften when it meets water, and rainwater infiltration is easy to form weak interlayer, which induces local deformation and finally slides.(2) The landslide of Beixi Village is in a stable state under natural conditions; the landslide was in an basically stable state under saturation condition. (3) According to the plastic cloud map of sliding surface, there is stress concentration in the landslide front, which endangers the lower buildings. It is suggested that slope cutting + gravity retaining wall + drainage engineering prevention and control measures. The formation mechanism of the landslide can provide engineering reference for the disposal and prevention of similar landslides.