Research Of Slope Stability Mechanism Under The Conditions Of Rainfall

Landslides refers to the hillside, slower under certain internal and external conditions, the rock mass along the structural plane of the original or new peristalsis of the fracture surface under the action of gravity and sliding.There are many factors that can cause instability and failure of landslides,Such as rainfall and human engineering activities, earthquakes, etc.Landslides, as a kind of main geological disasters,Due to its effect factors and the mechanism of the complexity and variability,Prevention prediction is difficult, has been one of the important geological and engineering problems of research around the world.The south mountains areas of shaanxi is high incidence of geological disasters in China and one of the hardest-hit areas. As widely distributed in the area of the main geological disasters caused heavy casualties and economic losses.This paper through the gathering Southern shaanxi in nearly a decade of the geological disasters detailed investigation data and landslide case investigation,And summarizes the classification,Found that rainfall caused most of the landslide disaster,The rain became the main inducing factors of landslide.Secondly this paper mainly studies the mechanism of the rainfall on landslide stability,Based on the theory of single landslide to make use of FLAC3D numerical simulation.And through the indoor experiment and through theoretical analysis,Put forward the effective rainfall and landslide stability of the relationship between digital model, By using effective rainfall monomer landslide forecast instance analysis.At last, by comparing the analysis results of two methods,To verify the digital model of adaptability,And landslide in mountainous areas and the ability to predict warning for the future work are proposed.