1Investigation on the pull-out bearing characteristics of bolts with different bond lengthsDU Yunlou, FENG Guorui, KANG Hongpu, ZHANG Yujiang, ZHANG Xihong1-82Differentiation response characteristic of roadway deformation and rock supporting analysisZHENG Jianwei, JU Wenjun, SUN Xiaodong, LI Wenzhou, ZHOU Yiqun, CHU Xiaowei, LIU Biao, ZHAO Kaikai9-163Feasibility discrimination method of upward mining in close-distance coal seam based on data statisticsYUAN Guangming, HE Tuan17-274Ground control of narrow coal pillar in gob side entry driving with fully mechanized top coal caving mining in extra-thick coal seamDONG Hexiang28-385Rock mass caving and movement mechanisms of block caving miningZHANG Dongjie, REN Fengyu, WANG Jianduo39-496Roof displacement prediction algorithm of goaf in Gongchangling Open-pit MineLI Xiangxi, ZHU Wancheng, REN Min50-577Seepage characteristic and fracture development of protected seam caused by mining protecting strataWANG Jing, WANG Xiaolei58-668Mine pressure prediction method based on random forestJI Wenli, LIU Yixin, CHAI Jing, WANG Bin67-779Experimental study on acoustic emission characteristics of fault slip process based on damage factorLAN Shirui, SONG Dazhao, LI Zhenlei, LIU Yang78-8610Mechanical properties and fatigue damage evolution of granite under cyclic loading and unloading conditionsYANG Jixian, LUO Mingkun, ZHANG Xiaowu, HUANG Ning, HOU Shengjun87-9411Study on friction effect and damage evolution of end face in uniaxial compression testLI Shanlin, LIU Guangjian, JIA Ruifeng, XUE Fei, WANG Kangyu95-10412Simulation study on settlement and deformation of highway subgrade in subsidence areasZHANG Xiangyang, REN Shanglei, XU Min, ZHOU Tengfei105-11213Treatment scheme of goaf group in Alhada Lead-zinc MineJIA Hanwen, PEI Dianfei, WU Qinzheng, LIU Huanxin, YIN Yantian, DONG Chunlei113-11914Analysis of coal wall vibrationLIU Sifei, SHI Peng, WAN Zhijun, LYU Jiakun, LU Shuaifeng, WANG Yechang120-125