1Mechanical properties of coal and rock with different dip angles based on true triaxial unloading testPENG Yanyan, LI Yifan, YU Hu, HAN Panrong, ZHU Chun, HE Manchao1-102Experimental study on triaxial disturbance and failure characteristics of rock-like specimensWANG Jun, ZHU Chuangen, LI Xun, WANG Bo, ZHANG Yiteng1-143Effect of cyclic stress damage on the mode Ⅰ dynamic fracture characteristics of coalZHANG Chuanjiu, LI Guo, REN Jianhui, YAO Shimao, LI Xuanliang1-114Dynamic evolution law of coal seepage under hydraulic couplingLYU Mingjie, LIU Liren, ZHANG Xiaotao, CHEN Bo1-125Research on rock mass quality optimization classification and support based on weighted membership matrixLI Fujia, LIU Yanzhang, QIN Shaobing, YU Jiaxing, ZHANG Di, YE Tao1-106Study on surrounding rock support of composite roof roadway under expansion stressLI Hongru, LYU Huawen, QIAO Jun, SU Bo, SHI Jiulin, CUI Feng1-147Intelligent prediction system and application of coal roadway support effectMA Xinmin, XIANG Junjie, ZHAI Zhonghua, CHEN Liying, YANG Wenqing1-168Width and bearing strength check of "two hard" coal pillar in fully mechanized caving faceSHAN Chengfang, SHANG Huiyang, ZHANG Qiang, LI Yafeng, LIU Wei, HUANG Peng1-129Stability and control of room-and-pillar mined-out area in shallow coal seamLIU Xinxin, QI Xueyuan, GENG Junjun1-1010Development height of water-conducting fracture zone in fully-mechanized caving of extra-thick coal seam under strong aquiferLIU Chengyong, SONG Wei, SHENG Fengtian, GU Wenzhe, YUAN Chaofeng, ZHANG Lei1-1111Evaluation method and application of impulse hazard based on roof structure characteristicsWANG Chao, ZHANG Guangchao, ZHAO Xipo, ZHOU Guanglei, ZHANG Yong, LYU Kai1-1112Mining hidden danger data association rules of coal mining face based on genetic algorithmNING Guifeng, GAO Long, LIU Liping1-1013Physical and mechanical properties and application of high-water materials based on low-standard sulfoaluminate cement clinkerCHEN Zhisong, XU Youlin, JIANG Zebiao, XIAO Bing, WU Shaokang, ZHANG Jitao1-11