Study On Stability Evaluation And Engineering Management Of Huangjiawan Landslide In Fuping County,Shanxi Province

In recent years,geological disasters occurs frequently in Foping country of Shanxi Province.Besides,Huangjiawan landslide locates in the geological disaster-prone and major prevention area of Foping country.It not only brings large losses to local economy,but also brings potential threats to life safety of local residences.Moreover,it causes tremendous pressure on the local government at the same time.Therefore,it is of great significance for Huangjiawan's landslides in Foping country of Shanxi Province to systematically analyze and prevention research.This article takes the landslides on Huangjiawan in Foping country of Shanxi Province as the research object and the natural geological environment conditions of the study area are described.On the basis of analyzing the essential features and forming conditions of landslide,we adopted qualitative and quantitative methods to analyze the stability of the landslide.Combined with the analysis results and the optimization of the management plan and the design of the governance.The main research contents and research results are as follows:1.By analyzing the natural geographical and geological environment conditions in the study area,Based on the analysis of the basic features and causes of landslides in the study area.Then confirming the influences of stability on the landslide and making a qualitative and quantitative analysis of stability on the landslides.2.Using limit equilibrium method to calculate and analyze the stability of landslide,the calculating results show that: In natural state,the landslide is in a stable condition;but in saturation,it is in an unstable to under-stable state.3.By using the MIDAS GTS NX finite element analysis software for the two dimensional numerical simulation analysis of the landslide in Huangjiawan,we can conclude that: In natural state,the landslide is in a stable condition;in saturation,the phenomena of stress concentration appears at frontal part of the landslide.It's prone to slide.Compared with the results of limit equilibrium method,the numerical simulation results are in good agreement with the results,combining the analysis results,the author puts forward the control plan oflandslide.4.According to the principle of landslide control,we combined with present condition and stability of the landslide mass to calculate the results.And we put forward two kinds of improving schemes,the two schemes are optimized by means of layer analysis,founding that the comprehensive improving scheme of anti-slide pile plus intercepted drainage is an optimal scheme.Finally,we design a treatment project for this optimal scheme.