1Experimental Research on Influence of Porosity on Tectonic Coal Gas PermeabilityWANG Gongzhong, SUN GuangzhongTest·Research1-42Development and Application of Three Dimensional Test Bench for Gas Migration in Mining Fissure of Overburden RockWEI Zongyong, LI Li, LI Shugang, XIAO Peng, LIN HaifeiTest·Research5-83Response Experiments of Coal and Rock Apparent Resistivity in Hydraulic Fracturing ProcessSONG Dazhao, QIU Liming, JIA Haishan, GAO Meng, ZHAO Zhentao, LIU Meng, LI XilinTest·Research9-124Study on Rock Burst Prevention Process of Extra-high Pressure Fixed-point Hydraulic Fracturing in Coal SeamHUANG Guangwei, JIANG Fuxing, ZHAI Minghua, GUO Xinshan, ZHANG Zongwen, WANG Bo, HUANG JunruiTest·Research13-165Experimental Study on Solid Stick Additives for Water Injection into Coal SeamsLIU Xianglong, CHEN ShaojieTest·Research17-196Theoretical Calculation and Experimental Research on Tensile Strength of Coal Rock Under Different Splitting AnglesAI Chi, ZHANG Jun, LI Yuwei, ZENG Jia, GAO ChanglongTest·Research20-237Study on Dynamic Characteristics of Oxygen Distribution During Spontaneous Combustion Stage in GoafLIU Xingkui, CHANG XuhuaTest·Research24-278Experimental Study of Airflow Characteristics of Network FireZHANG Jiangong, SONG ShuanglinTest·Research28-319Study on Self-heating Characteristics of Lignite During Spontaneous CombustionLIU Junshuai, ZHAO Huan, ZHANG Jing, GENG Xiuzhen, XIN Binbin, YU JianglongTest·Research32-35,3910Influence of Overlying Strata Characteristics of Lithology and Structure on Goaf Fractured Zone HeightCHEN Liang, XU XiaokaiTest·Research36-3911Distinguishing Hydraulic Connection of Coal Mine Aquifers by Three-dimensional Excitation-emission MatrixYANG Jian, HUANG XuanmingTest·Research40-43,4712Experimental Study on Oxidation Kinetics Parameters of Coal Under Different Oxygen ConcentrationLI Yuqian, QIAO Ting, WANG Wenqiang, WANG Ziwei, DI Lixiadi, LIU WeiTest·Research44-4713Surrounding Rock Deformation Law of Filling Roadway and Working Face Under Steep and Filling MiningQIN GuichengTest·Research48-50,5414Prevention Study on Mining Dangerous Zone With Weak Outburst Proneness and Complicated ConditionsGONG Huagang, FAN Junpeng, LI Qiang, PANG Jilu, SUN Zhenping, ZHANG ChaochaoTest·Research51-5415Study on Strength of Cementitious Backfill Material with Loess in Coal MineWANG XiaodongTest·Research55-58,6216Study on Stress Evolution and Reasonable Width of Sectional Coal Pillar Under Influence of Deep MiningZHAO Qifeng, LIAN Huiqing, QIU Haitao, LI Hao, LIU YuanyuanTest·Research59-6217Experiment of Yielding Stress Supporting Technology for Kilometer Deep Soft RoadwayWU Lei, ZOU DeyunTest·Research63-6618Optimization of Hydraulic Fracturing Liquid Based on Coal Bed Methane Reservoir in Luling FieldXU YaoboTest·Research67-6919Safety and Reliability Study on Improving Oxygen Candle Starter of Coal Mine Self-rescuerTest·Research70-7320Hole Sealing Method of Sealing and Partitioning Integration for Gas Extraction HolesXIANG Xianwei, ZHAI Cheng, XU Yanming, YU Xu, WU ShiliangTechnology·Innovation74-77 