岩土工程学报2017，Vol.39Issue(7)：1351-1356,6.DOI:10.11779/CJGE201707023
基于单轴剪切破坏的岩石M-C准则参数反演分析
Inversionanalysis of M-Ccriterion parameters of rock based on uniaxial shearing failure
摘要
Abstract
Based on different shear failure modes in rock uniaxial compression tests, the relationship among the uniaxial compressive strength, cohesion and internal friction angle is deduced by using the limit analysis method. According to theuniaxial and triaxial test results of rock, the correctness of the formula for calculating the uniaxial compressive strength basedon the M-C criterion parameters is verified. The difference between the results obtained from the formula and the experimentalones is between 6% and 10%. The cohesive force and internal friction angle of rock are calculated by combining the actualuniaxial shear failure modes of rock and the test results. The results show that the proposed method for calculating the cohesionand internal friction angle based on the mode of uniaxial shear failure and the value of uniaxial compressive strength is accurateand practical. The formula also reveals the internal relationship between failure modes of rock and parameters of rockmechanics.关键词
岩石力学/单轴抗压强度/黏聚力/内摩擦角/剪切破坏Key words
rock mechanics/uniaxial compressive strength/cohesion/internal friction angle/shear failure分类
建筑与水利引用本文复制引用
杨仁树,陈骏,方士正,侯丽冬,陈帅志..基于单轴剪切破坏的岩石M-C准则参数反演分析[J].岩土工程学报,2017,39(7):1351-1356,6.基金项目
国家自然科学基金重点项目(51134025) （51134025）
国家重点研发计划项目(2016YFC0600903) （2016YFC0600903）
高等学校学科创新引智计划"111计划"(B14006) （B14006）
