1Study on coal failure characteristics of multiple disturbance boreholes under dynamic loadOUYANG Zhenhua, LI Wenshuai, LIU Yang, LI Chunlei, SHI Qingwen, ZHANG Ningbo1-82Research on the mechanism and applicability of deep coordination full mining deformation reductionYI Sihai, GAO Pengcheng, LI Xinliang, XUE Yakun, XING Bin9-183Research on optimization technology of gas extraction pipeline based on pressure distributionQI Liming, WANG Shengyuan, CHEN Xuexi, GUAN Lianhe, ZHOU Jiaen19-254Characteristics of surrounding rock failure and support design for deep-buried coal roof roadwaysZHANG Jinbiao, ZOU Guanghua, XIN Chubing, KONG Dechuang, FAN Qingzheng, ZHOU Kun26-345Stress distribution and control of surrounding rock of large-section roadway in deep coal mineQIN Qingju, YIN Shuaifeng, WANG En, ZHAO Xubo, KANG Qingtao, ZHENG Xinjian42-486Study on pore structure characteristics and capillary force curve model of long flame coal in Jinfeng Cuncaota mineNING Jiangqi, TANG Mingyun, LUO Dayong49-547Improvement and application of air-water linkage purification spray systemWANG Wei, ZENG Yong, QI Yuxuan55-588Analysis of knowledge graph of development situation of intelligent operation and maintenance technology in coal mineCHU Xiaoyu, SHENG Wu59-649Research on operational energy efficiency evaluation of mine water treatment systemLIU Xiaole, LI Qiong, ZHANG Runzhao, XUE Hongwang, ZHAO Chen, WANG Yujie65-6910Research on distribution path of flood disaster emergency materials based on demand urgencyYANG Wenguang, XU Bingbing70-77,10611Study on the influence of nozzle interval on the extinguishing performance of water mist system in the cable cabin of utility tunnelGUO Weijian78-8212Analysis of the influence of water injection flow rate on the dynamic expansion law of cracks across interfacesMA Dengyun, MA Yankun, WANG Xiaoqi, ZHOU Jian83-9013Application and prospect of liquid carbon dioxide in the prevention and control of spontaneous combustion in goafWANG Yuhuai, DOU Jingwen, ZHANG Wujun, YAN Haixia, HU Shuopeng, ZHANG Xuanle, ZHANG Sijia91-9614Modeling and empirical analysis of hotel building fire risk assessmentZHANG Lining, GUO Jiaoqian, AN Jing, ZHUANG Xin97-10615Research on microscopic testing technology for key parameters in gas detonation flow fieldsLI Wanhong, ZHANG Chunli107-11216Analysis on the training of safety engineering major in coal mining enterprisesZHU Jianfang, LI Dongming113-117,12417Analysis of emergency management mechanism and countermeasures for Y town governmentLI Bixiao118-124 