TY - Journal of Yangtze River Scientific Research Institute A1 - TANG Qian, LI Yun-an T1 - Particle Flow Simulation on the Influence of Confinement on Crack Propagation in Pre-cracked Rock Y1 - 2015-04-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 81 EP - 85 VL - 32 IS - 4 UR - http://ckyyb.crsri.cn N1 - 10.3969/j.issn.1001-5485.2015.04.016 ER -