It is shown that the influence of the strength differential effect and the suffered intermediate principal stress of materials on the discontinuous bifurcation are comparatively large.
研究表明，材料的拉压异性以及所受的中间主应力对非连续分叉有较大影响。
The study results show that generalized shear stress has a strong nonlinear relation with generalized shear strain, and intermediate principal stress has interval effect on soil strength.
研究表明：土体广义剪应力与广义剪应变关系曲线呈明显的非线性，中主应力对土体强度的影响存在区间效应。
By analysis, it can be concluded that the effect of intermediate principal stress in the stability of slope analysis shouldn't be neglected.
通过分析可知，中间主应力在边坡稳定性分析中不容忽视。
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