The landforms of the Loess Plateau in China are widely distributed.In the process of human engineering construction and the continuous development and expansion of living space,there are more and more engineering geological problems.The landslide disaster is a relatively common type of geological disaster.Landslide disasters have the characteristics of wide distribution and great harm.Once a disaster occurs,it will cause serious harm to people or facilities within the threat range.Therefore,the study of landslide control is of great significance to human engineering construction and life and property safety.This paper mainly relies on the landslide in north Erzhuangke village of Yan’an City.Based on the systematic analysis of its geological background,the basic characteristics of the landslide,the causes of the landslide formation,and the stability status,it proposes engineering measures for landslide control.The landslide thrust is monitored,and the reinforcement effect of its treatment project is analyzed with the help of finite element analysis software.A series of research results for the reinforcement effect of the governance project are described below:(1)Based on the geological basic data of the landslide in north Erzhuangke village of Yan’an City,the main reason for the formation of the landslide was analyzed.(2)The theory and technology involved in the paper are briefly introduced,and two methods of analysis are used,the transfer coefficient method and the finite element analysis method,to analyze the stability in natural conditions and saturated conditions.It is in an unstable state under working conditions and unstable under saturated working conditions,and finally the treatment engineering measures for the landslide are finally determined.(3)The earth pressure box is used to monitor the landslide thrust on the anti-slide piles of the landslide treatment project,and the analysis is made to obtain the variation law of the landslide thrust on the anti-slide piles.The monitoring value of the earth pressure on the anti-slide pile is less than the design value of the earth pressure The anti-slide pile is in a safe state.(4)Through the numerical simulation software Midas/GTS,the stability status,displacement size,stress distribution characteristics and strain distribution characteristics of the landslide after reinforcement were analyzed by finite element method.It is considered that the displacement of the landslide body after treatment is within the safe range,and the stress and strain distribution The range is reasonable and the landslide body is in a stable state.(5)The stability status,deformation size,stress-strain distribution characteristics,anti-slide pile stress characteristics and the social and economic benefits of landslide treatment before and after the treatment of the landslide body are compared and analyzed.The conclusion is that the treatment effect of the landslide is good. |