【作者】 李小春； 许东俊； 刘世煜； 安民；

【Author】 Li Xiaochun Xu Dongjun(Institute of Rock and Soil Mechanics, the Chinese Academy of Sciences,Wuhan,430071) Liu Shihuang(North- West Design Institate for Hydroelectric projects Xian,710001) An Min(Xian Design Institute of Coal Mine,Xian,710054)

【机构】 中国科学院武汉岩土力学所； 能源部西北勘测设计院； 西安煤矿设计院；

【摘要】 在RT3型岩石高压真三轴仪上,通过恰当控制加载过程中三个主应力的相互关系,测出了拉西瓦花岗岩的破坏曲面在应力空间中的几何形态。据此,本文验证了双剪强度准则对该岩石的适用性。此外,本文还研究了中间主应力对该岩石的变形和破裂特性的影响。更多还原

【Abstract】 On the RT3 type high pressure true triaxial rock tester,the geometrical shape of the failure surfaces of Laxiwa granite in the stress space is measured by properly controlling the relations among the three principal stresses during loading.And the criteria of Double-Shear Stress is hereby confimed.Further more,the effects of the middle principal stress to the deformation and failune properties of the rock are studied.更多还原