NUMERICAL ANALYSIS OF FAILURE MECHANISM OF TWO PARALLEL ROCK PILLARS
Using the numerical code, RFPA2D, the progressive failure process of the parallel rock samples are simulated. The numerically simulated results show that not only the stiffness, but also the strength of rock sample in parallel models plays an important role in the instability of pillars. The damages always occur and develop in the pillar with the lower strength or lower elastic modulus. In addition, due to the Kaiser effect of rock, the stress-induced damage in a rock pillar is irreversible, and only when the previous stress state in the failed rock pillar is exceeded, the further damage will continue to occur.
SHAN-YONG WANG SCOTT-W SLOAN WAN-CHENG ZHU TIAN-HONG YANG CHUN-AN TANG
Centre for Geotechnical and Materials Modelling Civil, Surveying and Environmental Engineering The U Center for Rock Instability and Seismicity Research, Box 138, Northeastern University Shenyang, 1100 Center for Rock Instability and Seismicity Research, Dalian University of Technology Dalian, 116024,
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
1387-1392
2009-08-21(万方平台首次上网日期,不代表论文的发表时间)