Stability Analysis Of A Poverty Alleviation Project In Daozhen County

With the enhancement of China's economic strength and social development,various kinds of infrastructure are developing vigorously,and most of the infrastructure is related to the slope,especially most of the highway construction and operation are closely related to the stability of the slope.The instability of highway slope,such as landslide,collapse,collapse and other hazards,not only has a certain impact on the project construction and the surrounding environment,more importantly,it will threaten people's lives and property,and even cause major losses.Guizhou province and is located in the southwest of the country without "three mile plateau,three free day sunny day",has been a landslide to one of the key of the prevention and control of geological disasters in our province,and now the country's vigorously support the development of guizhou,a large number of infrastructure is built,so to ensure safety,under the condition of rapid development,it is particularly important to the study of stability of slope engineering,is also a very challenging and meaningful work.This paper discusses the slope stability of a poverty alleviation project in guizhou daozhen county high slope engineering as an example,the summary of slope stability analysis method and the commonly used control measures at home and abroad on the basis of research results,combined with tao really county is a poverty alleviation project high slope engineering as an example,application of qualitative analysis and quantitative analysis,the method of finite element software for calculation and analysis,a poverty alleviation project in tao county really tall the stability of the slope and the prevention and control measures are studied,through the study of this article,hope for similar high soil slope in guizhou province,such as the road slope stability analysis,evaluation and governance and slope protection to provide the corresponding reference,The relevant research is as follows:1.The status quo of slope in Guizhou province was summarized through the collection,investigation and consultation and field investigation of relevant data in Guizhou province.The factors affecting slope stability are mainly composed of internal and external factors.In Guizhou,where the climate is humid and rainy,rain is one of the most important factors affecting slope stability.Guizhou belongs to karst landform region,and its biggest characteristic is the relatively developed Karst region.The main factors affecting the stability of slope in karst region include topography,soft structure,karst and karst hydrodynamics,karst weathering and load,etc.Carbonate rocks are widely distributed in guizhou,long-term weathering carbonate formation of red clay and red clay slope is increasing,and the whole red clay slope instability phenomenon will be less,and collapse,local slip fall shallow slope failure phenomenon is relatively rare,such as operation and train operation safety of highway will cause adverse effect,this phenomenon has become a common phenomenon of the slope failure in our province.2.According to the word true county is a poverty alleviation project tall slope in a certain slope section,based on the limit equilibrium method(simplified BISHOP method)and finite element strength subtraction,respectively for the tao county is a poverty alleviation project high slope stability analysis is carried out under the natural condition,through calculation and analysis,it is concluded that the safety factor of slope and the critical slip surface,the characteristics of the corresponding slope in natural state is in unstable state,is likely to produce landslides,need to undertake the corresponding slope management and protection.3.Based on Daozhen county is a poverty alleviation project really tall,on the basis of slope engineering,sensitivity analysis was carried out on the slope stability influence factors,the calculation of a section as the basis of calculation and comparison of the sliding surface C,phi values and the severe gamma for slope stability coefficient of soil,the influence of the value obtained by different circumstances of the stability coefficient of slope,the C value is obtained on the slope safety coefficient is larger,the influence of followed by the gamma value,phi.4.According to the stability analysis results of the high slope of a poverty alleviation project in Daozhen County,combined with the corresponding slope protection measures and treatment measures,the comprehensive analysis concluded that the unloading method + drainage method + anchor method + retaining method is suitable for the protection and treatment of the slope,and the analysis after the support shows that the slope is in a stable state;The dynamic monitoring scheme of the slope is put forward,and the monitoring data show that the slope is in a stable state after comprehensive protection and treatment.In this paper,the stability analysis and comprehensive control of roadside slope and high slope of road bridge in Guizhou province are given.