Analysis On The Stability Of Loess Slope

Linxia is an important place of residence of ethnic minorities and is an important cargo hub in western China.Loess landslide and secondary disasters caused by loess landslide,which seriously threaten the life and property safety of local residents.Therefore,it is a great significance to study the stability of local landslides.The loess landslide in DongXiang county was analyzed.Based on field investigation and experiment,the three-dimensional numerical model was established.The influence of earthquake and excavation on the stability of loess landslide were analyzed.The main research work and achievements are as follows:1 Researching analysis of the local hydrogeology and engineering geological conditions,The influencing factors of induced landslides are analyzed.2 The establishment of three-dimensional numerical model,the stress and the strain of the slope were calculated and researched.Considering the stability under the original state,The stability of the slope was calculated under earthquake conditions.3 In order to analyze the influence of excavation,a two-dimensional numerical model of excavation was established.The stress,strain and displacement of slope under excavation and earthquake were analyzed4 Comparing three-dimensional numerical model and two-dimensional numerical model,the differences between different numerical model were analyzed.