1Research on Negative Pressure Distribution Law for Bedding Gas Extraction BoreholeWANG Kai, ZHAO Xusheng, DAI LinchaoTest·Research1-4,82Orthogonal Experiment Study on the Factors of Loop Air Curtain Cutting off EffectGUAN Weiming, ZHANG Dongsheng, LI Bo, ZHANG ZizhaoTest·Research5-83Experimental Study on Impact of Repeated Heating on Coal Low Temperature Oxidation CharacteristicsQIN Yueping, SONG Huaitao, XU ShiminTest·Research9-124Research on the Spontaneous Combustion Laws at Fully Mechanized Caving Face With Large Inclined Angle in Geting Coal MineHE Yong, SUN Zhaobing, FANG Wubin, GAN JiandongTest·Research13-15,195Thermo Gravimetry Experiment Study on Relationship Between Oxygen Concentration and Characteristics of Coal OxidationZHU Hongqing, SHEN Jing, WANG Haiyan, CHANG Mingran, HU RuiliTest·Research16-196The Air Leakage Laws and Its Effect on Spontaneous Combustion at 80509 Isolated Island Caving Face of Yangquan No.2 Coal MineLINGHU Jianshe, ZHAO Qingzhen, YANG Shengqiang, HUANG Jin, HAN ZongjianTest·Research20-227Study on Influential Factors of Hydrogen Sulfide Treatment in Coal MineHU FuTest·Research23-268The Influence of Coal Particle Size on Coal Oxidation Rate in Closed SpaceWANG Yongyu, ZHANG Yulong, WANG Junfeng, WU JianmingTest·Research27-309Study on Preheating Mine Ventilation Airflow by Return Air Heat Recycled by Heat Pipe Heat ExchangerZHANG Mingguang, ZHANG Peipeng, CHEN Huining, XU LinaTest·Research31-3410The Research on Extension Evaluation Model of Roadway Roof Fall Hidden RisksLI Ji, PENG Bo, MA Wang, FAN Long, WANG FeiTest·Research35-3811Experimental Study on the Influence of Gangue Particle on the Strength of ShotcreteZHANG Shouyong, ZHAO Wenbin, LIU Gang, WANG Minghua, ZHU Guangli, XU MengTest·Research39-4212Mine Subsided Prediction Model Based on SVM Combined With Fruit Fly Optimization AlgorithmWANG Suying, ZHANG Zhe, ZHAO YuepinTest·Research43-4613Gas Control Technology Based on the Hydraulic Measures of "Drilling Cutting Pressuring Releasing and Injecting"FU Jiangwei, FU Xuehai, SUN Mingchuang, GUO QiwenTechnology·Innovation47-5114Design Method and Its Application of Combined Supporting With Bolt Mesh and Beam for Roadway Roof in Very Contiguous SeamsMA HaixingTechnology·Innovation52-5415Shallow Bore Closure Gas Drainage Technology for High-gas and Fully Mechanized Tunneling Coal RoadwayXU XinghuaTechnology·Innovation55-58,6216Hydraulic Pressure Burst Increasing Permeability Technology for Single Low Permeability Coal SeamLIU XiaoTechnology·Innovation59-6217"Fracturing-sealing" Integration Technique in High Gas Content and Low Permeability Soft SeamsWANG Guang, ZHANG Chao, ZHU ChuanjieTechnology·Innovation63-65,6918Control Technology for Pumping Chamber With High Stress in Xiashijie Coal MineDING Guofeng, WANG Bo, MA Haitao, XIE Wenbing, ZHONG YaohuaTechnology·Innovation66-6919Oxidation Utilization Technology of VAM in Dafosi Coal MineLI Houzhi, YUAN Desheng, TIAN Zhenlin, DAI Huaming, LI QingzhaoTechnology·Innovation70-7220The Goaf Fire Prevention Technology of High Gas and Spontaneous Combustion Coal Seam at Fully-mechanized Face During the End of Mining and Dismantling Supports PeriodXU Yanhui, HE Yi, JIN Yongfei, AN JunxiaoTechnology·Innovation73-75 