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首页> 外文期刊>Rock Mechanics and Rock Engineering >The Application of Energy Principles to the Determination of the Sliding Resistance of Rock Joints
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The Application of Energy Principles to the Determination of the Sliding Resistance of Rock Joints

机译：能量原理在确定节理滑动阻力中的应用

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摘要

Energy principles have previously been applied to the analysis of rock joints in order to determine the shear strength of dilatanl joints (Ladanyi and Archambault, 1970). This work was based on the analysis of regular triangular asperities and assumed that the asperities were rigid. In recognition of the dilliculty of measuring a representative asperity angle in natural, complex rock joints, Ladanyi and Archambault extended their results to natural joints by assuming the equality ol'joint dilation rale and the effective joint asperity angle. It is shown that the assumption of this equality is not universally valid, and that it may lead to an underestimation of joint shear strength. Further, the effective friction angle for joints in an elastic rock mass, for joints comprising asperities of varying inclination, for post-peak shear displacements and for joints in degradable rock are all analysed using extensions of Ladanyi and Archanitault's approach.
机译：以前已经将能量原理应用于岩石节理的分析，以确定地拉坦节理的抗剪强度（Ladanyi和Archambault，1970）。这项工作是基于对规则三角形凹凸的分析，并假设凹凸是刚性的。认识到在天然，复杂岩石节理中测量代表性粗糙角的方法很困难，因此，Ladanyi和Archambault通过假定等节线膨胀角和有效节理粗糙角将其结果扩展到天然节理。结果表明，该等式的假设并非普遍有效，并且可能导致对联合剪切强度的低估。此外，使用Ladanyi和Archanitault方法的扩展分析了弹性岩体中节理，包括不同倾斜度的节理，峰后剪切位移以及可降解岩石中节理的有效摩擦角。

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