Application Of Concrete Framework Pre-Stressed Anchor Structure For High Slope Project

With the fast development for basic construction of our country,always encountered mine mining and other construction field. Ensured thesafety and stability of high and steep slope in the construction and operationhas a very extremely vital significance for the whole construction projectdeveloping smoothly and application. This paper based on a practical slopetreatment project that the security have some hidden dangers, using thetheory and method that geomechanics combination with numericalsimulation, analysis theessed anchor structure in the domestic andinternational application status and pre mechanism of deformation andfailure and its stability of the slope and put forward to ensure the long-termstability and supporting measures of the slope.The main support measures isframework prestressed anchor structure. The main research contents andachievements as follows:1） Comprehensive analysis of the concrete framework prestr sentsituation, research the working mechanism and calculation theory of theframework prestressed anchor deeply, and be carried out the analysis andsummarize for the stage work.2） Using the slope behind the integrated architecture in coal-mineliving areas of ShanXi province as the research object in this papers,analysis the reason that cause the slope local slump, damage form anddeformation damage mechanism. Through the comprehensive research todetermine the plan to reinforced the slope and adopt the frameworkprestressed anchor structure to consolidate.3） Through FLAC3D software can set up a finite difference methodanalysis model that be made up of soil unit, beam structure unit and anchorstructure unit. Carried out the numerical simulation of deformation mechanismfor the unreinforcement slope and reinforcement slope separately, studydistribution law of the stress and displacement, which validated feasibilityof the frame prestressed anchor structure of the slope; Combined the shearstrength reduction theory and numerical analysis method, calculated thesafety coefficient and the potential sliding surface for the slope in the initialstress state and the safety coefficient and the potential sliding surface for the reinforced slope separately. By the analysis and comparison, thereinforced slope body has reached a stable state.