1Study on Numerical Simulation of Pore-fracture Double Seepage in Rock MassSHAO Jianli, ZHOU Fei, XUE Yanchao, DU HouqianTest·Research1-42Optimization Test of Hydraulic Cutting Process Parameters for Mine RescueSONG Xianming, ZHENG Xuezhao, LIU Shijian, LI Xingyu, JIANG PengTest·Research5-83Multi-factor Influence Test for Gas Discharge Characteristics of CoalWEI Zongyong, XUE Menghua, HU Yuhang, FAN Fuhuai, ZHOU Yuxuan, YANG Ting, GONG YanbingTest·Research9-124Experimental Study on Influence of Gas Pressure on Coal Adsorption/Desorption Deformation CharacteristicsGUO PingTest·Research13-165Adaptability Evaluation of Mathematical Model of Capillary Pressure for High-rank Coalbed MethaneZENG Jianqiang, HUA Bin, TAN ZhenglinTest·Research17-206Simulation Study on Propagation Law of Double-hole Permeability Improvement Cracks with JointsWANG Wencai, WANG Zheng, ZHANG An, LI YumengTest·Research21-247Development and Application of a New Composite Sealing MaterialLIU XiaopengTest·Research25-28,338Experimental Research on Influence of Metamorphic Degree on V1 Value of Gas Desorption Characteristics of Coal SamplesMA Jinkui, CHEN YongTest·Research29-339A New Method for Gas Content Determination Based on Gas Desorption RatioAN Fenghua, YUAN Yu, CHEN XiangjunTest·Research34-3710Test Study on Gas Extraction from High Hole with Large Aperture in Fully Mechanized Mining FaceHU Zhiwei, DONG He, NIAN JunTest·Research38-4111Influence of Atmospheric Pressure Change on Gas Accumulation in Unsealing of Coal Mine Fire ZoneLI Jinglei, NIU Huiyong, LU Yi, LI Shilin, ZHAO LeiTest·Research42-45,5012Study on Flame Retardant Effect of Dimethyl Methylphosphonate on Lignite CoalWANG Fusheng, KOU Yafang, DONG Xianwei, HOU XinranTest·Research46-5013Study on Kinetics of Constant Temperature Oxidation of Gas CoalXIAO Yang, GUO Tao, ZHAO Jingyu, LI Qingwei, LYU HuifeiTest·Research51-56,6014Experimental Study on Heat Transfer of Surrounding Rock Under Different Air Volumes and Surrounding Rock TemperaturesWANG ChangbinTest·Research57-6015Distribution and Water Abundance of Facies Controlled Sand Bodies in Jurassic Zhiluo Formation in Ying panhao FieldZHANG Kang, WEI Jiuchuan, LI Liyao, XIE Chao, XING Jingwen, DU MengdiTest·Research61-6516Reasonable Width of Small Pillar of Gob-side Entry Driving in Fully Mechanized Top Coal Caving FaceSUN ZhenpingTest·Research66-7017Test of Crack Evolution of Coal Samples Under Cyclic Loading and Numerical SimulationGUO Junjie, CHENG XiaoyangTest·Research71-7418Characteristics of Freeze-thaw Damage Evolution of Pore Structure in Backfill Material Based on NMR TechnologyDU XiaofangTest·Research75-7819Fire Prevention Technology During Stop-mining and Support Withdrawal of Fully Mechanized Caving Face with Complex Geological StructureJIN Yongfei, CHENG Ming, JIANG Xiyin, TAO Weiguo, XU Yanhui, CHENG Xiaojiao, GUO JunTechnology·Innovation79-8320Application of Full-length Anchorage Technology in Prepared RoadwaySHAO Desheng, ZHA Deqiu, ZHAO Lei, WANG Wei, WANG Fuhai, CHEN Kang, WANG QingniuTechnology·Innovation84-87,91 