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通过常法向应力直剪试验研究了含不同二阶规则起伏体高度结构面的剪切特性。试验结果表明:与只含一阶起伏体结构面不同,含二阶起伏体结构面会有多峰值剪应力和波浪状的变形曲线,会出现多次剪断破坏或一次剪断破坏的破坏特征,随着二阶起伏体高度的增大,结构面剪切强度增大。
The shear behavior of the plane with different second-order undulations is studied by normal shear stress tests. The experimental results show that, unlike the first-order undulations, the second-order undulations have multi-peak shear stress and wavy deformation curves, and the failure characteristics of multiple shear failure or one-time shear failure appear. The second-order undulating body height increases, the shear strength of the structural plane increases.