Stability Analysis and Processing Technology of Mountain Highway Rock Slope

Based on the analysis of rock slope stability,and the foundation mechanical model of non linear unipoium load was established,the formulas for stress and displacement of depth of z in a foundation were deduced by superposition principle in the plane perpendicular to the axis of the beam in prestressed anchor-Rope and groundsill structure.So the theoretical basis for the force transmission law was provided.This paper used the slope of K123+160～K123+369 of Changde-Zhangjiajie Expressway of Hunan Province as experimental region.According to the theoretical analysis,after the anchor cable has been prestressed,the prestress in prestressed cable anchor transfered to the strengthening geotechnical body through ground beam.The transfer mode was decaying gradually from inner to outer in an approximate ellipse iso-surface in the plane perpendicular to the axis of the beam.By the field experiment we can get the result that the compression strain increased with depth,after peak value it decayed gradually to 0,this distribution form was in accordance with theoretical conclusions.