1Forecasting Amount of Gas Emission Using Gaussian Process Machine Learning ModelSU Guo-shao, ZHANG Yan, YAN Liu-binTest and Research1-42Research on Accumulation Gas Control Measure in Drilling Field Using Gas Drainage at High Gas MineHE Yong-heng, LI Zeng-hua, ZHANG Lan-jun, CAI Chang-huiTest and Research5-8,243Mathematical Model of Gas Flow in Semi - Confined Coal SeamsWANG Hong-gang, WU Feng-liangTest and Research9-114Research on Mechanism of Stability and Control Technology of Deep Soft Roadway Influenced by Over-under Coal Seams' ExploitationZONG Yi-jiang, HAN Li-jun, ZHANG Hou-quan, QU Tao, CHEN ChengTest and Research12-155Research on Damage Features of Cover Rock in 8223 Work Face of Xutuan Coal mineGE Ying-Hao, XIAO Jian-Hui, LIU Wen-Zhong, FENG Shi-AnTest and Research15-186Research and Application on Closed-end Dedusting System by Air Curtain in Fully Mechanized Driving FaceTechnology Experiences19-227Enclosed Comprehensive Dust Temoval Technique for Fully Mechanized Driving WorkfaceTechnology Experiences22-248Optimization Methods of Layout Distance of Gas Drainage Borehole in Coal Seam Being WorkedYU Bao-hai, LING Zhi-qian, LIU Guo-zhongTechnology Experiences25-279Application of Sealing Technology of Downhole for Measurement of Gas PressureGE Jun-ling, WANG Bai-shunTechnology Experiences28-2910Gas Comprehensive Management Technique in Face 15101 at Shi Gang MineTechnology Experiences30-3311Controlling Technology of Mine Heat Disaster and It's Development StatusZHANG Xi-jun, WANG Chang-yuan, JI Jiang-huTechnology Experiences33-3712Observation and Analysis on Spontaneous Combustion "Three-zones" of Gob in Fully-mechanized Caving FacesTechnology Experiences38-4013Application of Pressure Balancing Ventilation in MineWANG Kai-deTechnology Experiences41-4214Numerical Simulation of Gab Seepage Flow in Zongyi Fully-mechanized Caving Faces and Division of Spontaneous Combustion "Three-zones"Technology Experiences43-4515Analysis of Coal Oxidation Environment in Cob of Fully-mechanized Caving Faces by "Cross Section" MethodsTechnology Experiences46-4816Application of Comprehensive Fire Fighting Measure in Long Distance Easy Spontaneous Combustion Coal FacesJIANG Feng-lin, SUN Shi-junTechnology Experiences48-4917Development and Application of Positive Stoppage Locking Device for Air Door Normally CloudQIAN Ze-bingTechnology Experiences50-5118Application of Three Bolting Support Technique on Coal Roadway along Gob under Condi-tion of Broken RoofTechnology Experiences52-54,5919Application of High Density Resistivity Method to Measurement and Test of Strata Re-leased Zone of lngate Roadway at Second Mine Auxiliary Shaft of Wangfenggang MineTechnology Experiences55-5720Supporting Technology for Crosscut Cross Coal Seam Group Repairing in Deep MineLI Zhi-hongTechnology Experiences57-59 