First , considering the change of stress conditions in excavation slopes by means of triaxial equipment , the triaxial tests of three kinds of stress paths of q3 and q2 loess , including lateral unloading , keeping mean normal stress changeless and conventional axial loading , is carried out under different water content and consolidation stress conditions 本文就黄土挖方高边坡工程问题,首先在三轴仪上考虑边坡开挖过程应力条件的变化,进行了q _ 3 、 q _ 2黄土不同含水量条件下围压卸荷、等p剪切及轴向加载三种应力路径的试验。
And combining with compound analysis , this thesis has calculated and estimated the deformation and stability of slopes of the cliff debris and residual soil slope project on the project site at k15 + 183 of yong ' an section of yong - zhang highway ; ( 3 ) in the course of the cut slope excavation inner displacement has been in control of real time field monitoring 同时边坡开挖后期坡顶会出现回弹现象。 3 、数值计算成果表明,随着开挖阶数的增加,大小主应力在边坡内也进行不断的调整。边坡开挖后坡脚处大小主应力值nlfep程序结果与ansys计算结果较为相似,两者吻合性较好。