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中文摘要：
使用声发射法与三轴试验相结合的方法对岩石试样微裂隙产生和发展进行监测，以获取岩石脆性剪切混合破坏模式的特点．采用断裂力学与岩石力学理论相结合的方式进行理论分析和试验数据处理，得到了试样三阶段特征强度随应力状态变化的规律，并提出了一种适用于岩石脆性、剪切混合型破坏强度分析方法，据此建立了Mohr．Coulomb、Griffith和Hoek—Brown等强度准则与脆、剪混合强度模型的关系．采用此模型对水厂边坡混合花岗岩的全应力一应变试验数据进行脆剪混合强度分析，理论值与试验值具有良好的一致性．
英文摘要：
To obtain brittle shear character parameters, acoustic emission accompanied with triaxial stress-strain test was applied to monitor the initiation and expanding of micro cracks in rock material. Theoretical analysis and data processing were carried out based on the theories of fracture mechanics and general rock mechanics, relations between the feature strength of three stages and the stress state were obtained, and a method was proposed for analyzing the brittle shear failure of rock material. The relationships of the Mohr-Coulomb strength theory, Griffith strength theory and Hoek-Brown criterion with the brittle-shear coupled strength model were discussed. Strength analysis of mixed granite in Shuichang slope was carried out by the brittle shear failure model, and the result of comparison shows strong correlation between test data and theory values.
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