Study On Control Technology Of High Embankment Stability And Deformation Cracking

Subject to natural conditions and economic conditions,the Hechi-Baise Expressway uses a large number of high embankment,high embankment due to its filling height,topography and other reasons are prone to stability and deformation cracking in the course of use,this paper takes the river hundred high-speed typical high embankment as a research object,around the stability of high embankment,deformation and cracking problems,a series of laboratory experiments,field experiments and computational analysis were carried out.(1)The filling property of embankment and the method of filling have influence on the stability and deformation cracking characteristics of high embankment,through geological prospecting data,laboratory experiments,field experiments,on the basis of evaluating the properties of Embankment foundation soil and embankment,the paper studies the filling scheme of reducing the stability failure and deformation and cracking failure of embankment.(2)Analyze the stability failure form of high embankment,use the limit equilibrium method of embankment to analyze the factors that influence the stability of high embankment,and study the concrete engineering measures to improve the stability of embankment,and provide the basis for rationally designing high embankment and reducing stability of embankment.(3)To establish the settlement observation system of high embankment,to study the settlement rule and post-work settlement law of high embankment,to find out the reason of deformation and cracking of embankment,and to establish the differential settlement model of high embankment by using the two-way stress and three-direction stress principle of embankment fill,and verify its accuracy by the measured data.(4)To set up the testing method of deformation and coordination ability of materials,analyze the mechanism of deformation and cracking of high embankment by the material of deformed coordination,and provide theoretical basis for the design of deformation and coordination layer treatment of deformation cracking.