摘要
分析了岩石强度理论中现有应力破坏判据的合理性与局限性;阐明发展应变破坏判据对工程设计的重要意义;根据实验资料作出应变判据曲线;并介绍围岩稳定性“直接应变分析”的一般方法。最后指出:两类判据的结合,将是完整的岩石强度理论的一个重要特征。
The reasonableness and limitations of the failure criterion for rock in terms of stress are described and it is emphasized that development of failure criterion in terms of strain has been of great significance on rock engineering design.According to the test data on rock specimen, critical strain curves are presented as rock failure criterion.. Finally, the general approach of direct strain analysis to the stability of underground excavation is introduced. Obviously, combination of the two kinds of rock failure criterion would be one of the significant characteristics on rock strength theories.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1992年第3期297-304,共8页
Journal of University of Science and Technology Beijing
关键词
岩石强度理论
破坏判据
临界应变
rock strength theories, failure criterion, critical strain
