Influence of soil parameters on slope stability based on orthogonal design
To investigate the influence of soil parameters such as cohesion,internal friction angle,tensile strength,and unit weight on slope stability,as well as the sensitivity of these factors to slope displacement re-sponse and anchor rod axial force response,a numerical calculation model of homogeneous soil slope was estab-lished using FLAC3D software.By combining orthogonal experimental design and hierarchical analysis method,multiple sets of numerical calculation schemes were designed and implemented.The safety factor of the slope under different parameter combinations was calculated using the strength reduction method,and the influence of various soil parameters on slope stability was comprehensively evaluated through dynamic and static analy-sis.The research results show that under static conditions,the safety factor of unanchored slopes is most affect-ed by unit weight,while for anchored slopes,the internal friction angle has the most significant impact.Under dynamic conditions,the sensitivity of permanent horizontal displacement and anchor rod axial force to unit weight,internal friction angle,cohesion,and tensile strength decreases in that order.The dynamic and static stability of slopes under different working conditions show significant differences,and the anchor rod axial force distribution along the length of the rod exhibits an elliptical shape,with larger axial forces in the middle and lower parts of the slope.The research results can provide theoretical reference for slope stability analysis and anchor design,and help optimize slope reinforcement measures in engineering practice to improve engineering safety.
国家科技期刊平台
NSTL
万方数据
维普
