中等应变率加载条件下岩石的变形和力学特性研究进展及展望

PROGRESS AND PROSPECTS OF RESEARCH ON DEFORMATION AND MECHANICAL PROPERTIES OF ROCK AT INTERMEDIATE STRAIN RATES

摘要: 对国内外在中等应变率加载条件下岩石的变形和力学特性的研究成果进行了总结。从中等应变率加载试验仪器研制、中等应变率条件下的压缩和拉伸试验、岩石材料在中等应变率条件下的破裂机理以及数值仿真模拟等方面进行了详细介绍。总结了已有研究工作中存在的不足和尚未解决的问题,并提出了下一步研究中需要解决的若干关键问题。

Abstract: The results of studies on the deformation and mechanical properties of rock at intermediate strain rates at home and abroad are summarized in this paper.The development of intermediate strain rate test instruments,compression and tensile tests at intermediate strain rates,failure mechanisms of rock materials at intermediate strain rates and numerical simulation are further discussed in detail.The drawbacks and unresolved problems in the relevant studies are summed up.Finally,several key issues are needed to be solved in further studies.