1Scientific conception of coal mine dust control and occupational safetyYUAN Liang1-72Geological guarantee of coal green miningWANG Shuangming, SUN Qiang, QIAO Junwei, WANG Shengquan8-153Application prospect of 5G technology in coal mine intelligenceWANG Guofa, ZHAO Guorui, HU Yahui16-234Progress, practice and scientific issues in steeply dipping coal seams fully-mechanized miningWU Yongping, YUN Dongfeng, XIE Panshi, WANG Hongwei, LANG Ding, HU Bosheng24-345Accumulative effect of overburden strata expansion induced by stress reliefXU Jialin, QIN Wei, XUAN Dayang, ZHU Weibing35-436Deformation of huge thick compound key layer in stope based on distributed optical fiber sensing monitoringCHAI Jing, LEI Wulin, DU Wengang, ZHANG Dingding, MA Zhe, YUAN Qiang44-537Deep learning prediction and model generalization of ground pressure for deep longwall face with large mining heightZHAO Yixin, YANG Zhiliang, MA Binjie, SONG Honghua, YANG Donghui54-658Coal rib burst mechanism in deep roadway and "stress relief-support reinforcement" synergetic control and preventionTAN Yunliang, GUO Weiyao, ZHAO Tongbin, MENG Xiangjun66-819Experimental study on mechanical properties of anchorage body and on anchorage mechanismWANG Weijun, DONG Enyuan, ZHAO Zhiwei, WU Hai, YUAN Chao82-8910Roadway hydraulic support for rockburst prevention in coal mine and its applicationPAN Yishan, XIAO Yonghui, LI Guozhen90-9911Mechanism of rockburst under stress wave in mining spaceWANG Enyuan, FENG Junjun, ZHANG Qiming, KONG Xiangguo, LIU Xiaofei100-11012Characteristics, types and prevention and control technology of rock burst in deep coal mining in ChinaPAN Junfeng, QI Qingxin, LIU Shaohong, WANG Shuwen, MA Wentao, KANG Xinchao111-12113Analysis on hazard characteristics of overburden structure in steeply inclined coal seamLAI Xingping, DAI Jingjing, LI Chao122-13014Method of coal gangue separation and coordinated in-situ backfill miningZHANG Jixiong, JU Feng, LI Meng, ZHOU Nan, ZHANG Qiang131-14015Application status and prospect of backfill mining in Chinese coal minesLIU Jiangong, LI Xinwang, HE Tuan141-15016Status and research progress for residual coal mining in ChinaFENG Guorui, ZHANG Yujiang, QI Tingye, KANG Lixun151-15917Surface dynamic subsidence prediction method based on mining sufficiency degreeLI Quansheng, GUO Junting, DAI Huayang160-16718Progress and development of coal mine gas explosion suppression and disaster reduction technology in ChinaYU Minggao, YANG Xufeng, ZHENG Kai, LUAN Pengpeng168-18819Experimental study on accuracy of direct gas content determinationLI Chengwu, WANG Yilin, WANG Qijiang, GAO Xin189-19620Experimental research on supercritical CO2 enhanced coalbed methane recovery in different rank coalsLIANG Weiguo, ZHANG Beining, HE Wei, YAO Hongbo197-203 