1Analysis of Internal Temperature of Coal Gangue Dump with Spontaneous Combustion Based on Finite Difference MethodXIA Qing, HU Zhenqi, WANG Haijuan, XU Lijiang, ZHANG YanTest Research1-32Numerical Simulation Study on Fire in Mine Roadway with Different Cross-sectional ShapeLI Xiaoju, ZHU Jie, DAI Junyu, SONG YunlongTest Research4-8,123Experimental Study of Influence of Temperature on Gas Adsorption Constant of CoalZHANG HaijunTest Research9-124Determination of Target Altitude for Underground Environment in Plateau Coal MineXIN Song, CHEN Xingbo, CUI Yanhong, QI Xiaofeng, ZHANG HuiTest Research13-165Study on Mining-induced Fissure Development Scope in Roof Surrounding Rock in Stable Mining Area of Working FaceCHENG Hao, GAO Nana, LI Rifu, JIANG WangangTest Research17-206Numerical Simulation Research on Scope Division of "Three Zones" in Roof with UDECLI Zhenfeng, JIN XiaominTest Research21-247Application of Similar Material Simulation in Water Disaster Prevention in Ascending MiningZHAO Baofeng, CAO HaidongApplication Techniques25-28,328Research on Evaluation System of Safe Production Degree under Natural Conditions of Coal Mining AreaZHANG Shutong, ZHAO Xusheng, CHEN Jinhua, CAO Jie, ZHANG Jun, DAI LinchaoApplication Techniques29-329Study on Gas distribution Rule and Prediction Model of Pingdingdshan Coal Mining AreaWANG Haolong, ZHANG Yanan, ZHAO Shuai, LI PengzhenApplication Techniques33-3610Research and Application on Performance of Foam Generator Used in Heading FaceGAO Panjun, FANG Zhijie, ZHANG Liuliu, WANG Ying, WU Jia, REN HaonanApplication Techniques37-39,4311Application of Low-concentration Gas Mixing Technology in Mine Ventilation Air Methane OxidationZHANG YumingApplication Techniques40-4312Construction and Application of Early Warning System for Gas Disasters in Baijiao Coal MineSONG Runquan, QIU Jude, TAN Guowen, LIU KuncaiApplication Techniques44-4713Integrated Interpretation of Magmatic Rock-intruded Coal Seam in Wolonghu Mining AreaDAI Qi, CUI Ruofei, ZHAO Liming, GUAN YongweiTechnical Experience48-51,5514Research on Relevance of Acoustic Emission Characteristic Parameters Based on R-Type Clustering AnalysesHU Jie, LI Jiangong, LONG Qingming, LI QiulinTechnical Experience52-5515Critical Value Correction of Outburst Prediction Index K1 under Condition of Hydraulic MeasuresQING Qichao, LI Qiulin, LYU Guichun, LIU HuihuiTechnical Experience56-5816Study on Impact of Reference Influence Radium R upon Mine Water Inflow Prediction ResultZHANG Huanhuan, LIU Qimeng, ZHANG Dandan, SONG MakeTechnical Experience59-6217Comparison of Analytical Method and Numerical Method in Mine Water Inflow PredictionMA Qingshan, LUO ZujiangTechnical Experience63-66,7118Practice of Gas Drainage at High-level Drilling Site and Analysis of Drainage EffectCHEN Yongqing, SHEN Jinwei, ZHAO XueliangTechnical Experience67-7119Research on Water Control Effect of Xiatuanbai FaultWANG WenjunTechnical Experience72-7520Study on Water Prevention and Control Technology by Floor Solid Reinforcement in First-mining Face under Condition of Safe Mining PressureXU Xiaoma, ZHANG YaohuiTechnical Experience76-78,82 