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Mohr-Wedge岩石破坏准则是在Vutukuri等根据摩尔包络线提出的偏微分方程的理论基础上,通过引入楔形模型求解该偏微分方程的解得到的。整理Mohr-Wedge准则所含参数,使该准则更易被理解。利用公开发表文献中的多种岩石三轴试验数据,将该准则与Mohr-Coulomb准则和Hoek-Brown准则进行比较,进一步讨论该准则的适用性。结果显示,Mohr-Wedge准则与岩石三轴试验数据拟合良好,且对于某些岩石,其拟合结果略优于其他两种准则,这表明Mohr-Wedge准则在预测岩石强度时具备一定的适用性。
Mohr-Wedge rock failure criterion is based on the theory of partial differential equations proposed by Vutukuri et al. According to the Moiré envelope. The wedge model is used to solve the solution of this partial differential equation. Organize the parameters contained in the Mohr-Wedge guidelines to make the guidelines easier to understand. Using the published data from a variety of rock triaxial tests, the criterion is compared with the Mohr-Coulomb criterion and the Hoek-Brown criterion to further discuss the applicability of the criterion. The results show that the Mohr-Wedge criterion fits well with the rock triaxial test data and the fitting results for some rocks are slightly better than the other two criteria, indicating that the Mohr-Wedge criterion has some applicability in predicting rock strength Sex.