Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Main positions: President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
Other Post: Vice President of the Chinese Society of Rock Mechanics and Engineering CSRME
Title of Paper:岩石破裂过程微裂纹演化规律有限元统计分析
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Date of Publication:2007-03-30
Journal:中国矿业大学学报
Included Journals:EI、PKU、ISTIC、CSCD
Volume:36
Issue:2
Page Number:166-171
ISSN No.:1000-1964
Key Words:岩石;微裂纹;演化规律;统计分析
Abstract:为了系统完整地研究岩石破裂过程的微裂纹演化特征,运用数值分析方法RFPA2D,对在单轴压缩条件下岩石整个破裂过程进行了数值模拟,直观再现了岩石的微裂纹演化行为.借助RFPA2D对每加载步产生的破裂集团大小及数目进行统计的功能,对岩石的微裂纹演化规律作了定量化分析.结果表明:岩石破裂失稳具有前兆性,在接近自组织临界点之前,就出现了大的破裂集团(微裂纹);岩石宏观破裂失稳后,单元破裂百分比(损伤程度)略有所增加,而总破裂集团数(总微裂纹数)却有所减少.
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