1Distribution of Stress and Gas Outburst Hazard of Roadway Along Gob in Guhanshan MineCHANG Ping, LIU Mingju, ZHAO FajunTest·Research1-42Study on Gas Emission Laws of Excavation Roadway Coal Wall Under the Influence of MiningQIN Yueping, LIU Yanqing, LIU Peng, YU XingTest·Research5-83Study of Different Coal Samples on CO Adsorption Performance Under Low PressureWEN Hu, CHENG Bin, ZHANG Yanni, GUO Jun, YANG YifanTest·Research9-134Test Study on Relation of Seepage Characteristics and Volumetric Strain for Coal Briquette in Different Particle SizeXU Feng, LIU Rong, WANG Tao, GUO XinyuanTest·Research14-175Numerical Simulation on Seepage Flow in Multiplayer Gob Area of Coal Seam Group Under Small Mine Fire ZoneSHI Jilin, SUN Weili, ZHANG WeiliangTest·Research18-216Coal Roadway Failure Mechanism and Surrounding Rock Control for Thick Roof Coal with Large Section Passing Through FaultYAO Zaifeng, WEI Wenbin, WEI Zhen, SHI Bao, HE FulianTest·Research22-24,287Development Law of Water-flowing Fractured Zone in Sima Mine Thin Bedrock AreaWANG Yanmeng, BAI HaiboTest·Research25-288Experimental Research on Stability of Urn-shaped Coal Bunker and Its ApplicationCUI Jingkun, FENG Yunlei, LI Mo, YOU Xiaowei, GU Yadong, LI XuningTest·Research29-329Optimization for Grouting Hole Location of Concrete-filled Steel Tubular SupportYANG Yongqian, ZHANG Deqi, ZHAO Long, SHI YongTest·Research33-3610Numerical Simulation for Coal Pillar Mining in Fault FootwallZHAO Hua'an, ZHAO Guangming, MENG XiangruiTest·Research37-4011Influence of Fault Location on Chamber Blasting EffectCHANG Zhiguo, XUE Tingting, CHEN Yajun, MAO JinfengTest·Research41-43,4712Complete Analytical Model for Protective Coal Pillar Design by Vertical MethodZHU Qingwei, XIN TaiqiTest·Research44-4713Study on Organic Petrologic Characteristics and Hydrocarbon Generation of Brown Coal in Huangxian BasinMA XiaominTest·Research48-5014Study on Reasonable Adsorption Equilibrium Time of Anthracite Based on COMSOL SimulationQI Lingling, PENG Xinshan, WANG Zhaofeng, LOU XiufangTest·Research51-53,5715Hydraulic Fracturing Technology for Extremely Thick Coal Seam with Hard Roof in Tongxin MineWANG AiguoTechnology·Innovation54-5716Coal and Gas Co-mining Key Technology for Fast Gob-side Entry Retaining Y Pattern Ventilation in Outburst Coal Seam Group Protection Layer MiningLIU JianhaiTechnology·Innovation58-6117Mohaupt Blasting Increasing Permeability Technology for Deep Holes of Coal SeamXIE Zhenghong, ZHAO Shiwei, WANG Yongjing, GAO ZhongningTechnology·Innovation62-6418Supporting Technology and Process for Loose Coal Roadway with Broken RoofQI Fuzhou, WU YazhouTechnology·Innovation65-6719Automatic Filling Technology for Abandoned Roadway Under Slice MiningXIONG Zuqiang, GONG YanhuaTechnology·Innovation68-7020Application of Wireless Ranging Technology in Personnel Positioning System of Coal MineMA LongTechnology·Innovation71-73,76 