TY - Journal of Yangtze River Scientific Research Institute A1 - LI Shuang, LIU Yang, WU Ke-jia T1 - Exploring Mesoscopic Deformation Mechanism of Sand in Direct ShearTest by Numerical Simulation Using Discrete Element Method Y1 - 2017-04-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 104 EP - 110 VL - 34 IS - 4 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20151006 ER -