Research On The Influence Factors And Stability Of Rainfall Impact On Landslides In The Eastern Part Of Liao Yang

The total of all kinds of geological disasters is 168,the landslide geological disaster of 97,accounting for 57.7%,in the Liaoyang region collected for nearly years of geological disaster information by the Office of Land and Resources in the eastern part of Liao Yang.Paper based on this background,through the statistical analysis of landslide,the landslide characteristics determine in the eastern part of Liao Yang. According to the analysis of characteristics of landslide in the eastern part of Liao Yang,through geological data analysis and statistical methods of landslide,this paper analyzes the factors which affect the eastern part of Liao Yang,the results showed that:the eastern part of Liao Yang landslides mainly caused by natural factors,the vast majority of occurred in denudation low mountain hills,belongs to the accumulation of landslide,slope material mainly cohesive soil,the rainfall is a direct causative factor triggering landslides.On this basis,the paper through mathematical statistics,the theory calculation method,analyzes the relationship between landslide and rainfall in the eastern part of Liao Yang.The research results show that the induced lighthouse region landslide geological disasters of critical rainfall value is 300 mm, the critical rainfall intensity is 122.95 mm/d.On this basis,through the adoption of Phase2.0 numerical simulation software analyzed the lighthouse regional landslide stability under the conditions of different rainfall intensity.This article research results to the eastern part of Liao Yang landslide prediction and prevention and control work has an important guiding role,as well as LiaoYang landslide geological disasters provide certain theoretical basis for the establishment of early warning forecast system.