1Experimental Study on Fracture Morphology Based on Different StressZHANG Fan, MA Geng, LIU Xiao, TAO Yunqi, FENG DanTest·Research1-3,82Experimental Study on Gas Desorption Laws in Coal by Hydro－thermal CouplingWANG Yuli, YUAN Mei, LI Chuang, XU Shiqing, ZHANG Ping, LONG Nengzeng, LI XinlingTest·Research4-83Formaldehyde Generation Laws by Microorganisms Degrading MethaneLU Juanjuan, ZHANG Ruilin, YANG MingTest·Research9-124Experimental Study on Cracking Laws of High Pressure Gas Explosion in CoalZENG FanyongTest·Research13-165Influence Factors Analysis for H2S Extraction and Absorption of Steep－inclined and Extremely Thick Coal SeamHUANG SenlinTest·Research17-206Pore Structure and Gas Adsorption Characteristics of Coal with Low PermeabilityZHANG Chunwang, LI ShaoquanTest·Research21-247Characteristics of Ignition Point and Microstructure Change in Oxidation Process of Weakly Caking CoalYANG Bo, WANG Kun, AI XingTest·Research25-288Study on Marked Gas of Spontaneous Combustion and Forecasting Index System Under Coal and Oil Shale Mining ConditionsLIANG Saijiang, SONG Xiang, FAN Cheng, WANG GangTest·Research29-32,379Experimental Research on Inhibition Characteristic of Foamed Gel on Raw Coal Spontaneous CombustionLU Xinxiao, ZHAO Hongru, XUE Xue, HAN YuTest·Research33-3710Study on Mechanism of High－strength Water－inrush with Sand Caused by Weak Aquifer in Soft Rock Mining AreaLYU Yuguang, XIAO Qinghua, HAN GangTest·Research38-42,4711Laws of Low Temperature Oxidation of Water Immersed and Dehydrated Coal Samples in GoafZHAO Wenbin, CAI Hailun, LI Zhenwu, KONG Xiangtang, ZHAO Chao, SONG Lei, LIU Qing, LU JiyuTest·Research43-4712Strength and Acoustic Emission Characteristics Under Different Loading Rates for Coal Samples from Xiaojihan Coal MineCHEN Fei, LI Shuncai, YU Qiu, ZHANG LingxueTest·Research48-51,5713Study on Cracking Mechanism and Reinforcement Measures of Tunnel LiningWEI Meng, YUAN Chenhan, JIANG Yong, YUAN ChenxinTest·Research52-5714Dynamic Mechanical Properties and Damage Mechanism of Shotcrete in Roadway Surrounding RockFANG Fang, XIE DongdongTest·Research58-61,6615Study on Roughness Distribution Characteristics of Rock Fracture Surface Based on 3D Laser ScannerWANG Xuening, YAN Shuai, SONG Yuanba, ZHANG Tao, XU BobiaoTest·Research62-6616Fire Prevention and Extinguishing Technology of Fully Mechanized Top Coal Caving in Old Fire Goaf of Spontaneous Combustion Coal SeamLI Wanshi, ZHOU Xian, XIN LinTechnology·Innovati67-7017Fire Prevention Technology of Fully－mechanized Caving Coal Face Under Special ConditionsSUN QiyuTechnology·Innovati71-7418Fire Prevention and Extinguishing System of Fully－mechanized Coal Caving in Special Thick Coal SeamSU WeiweiTechnology·Innovati75-78,8319Mechanism of Dynamic and Static Load Support Crushing and Comprehensive Blasting Prevention TechniqueSHAO HongqiTechnology·Innovati79-8320Key Technology of Fire Prevention for Short Distance Coal Seam Group Under Typical Gob－side Entry with Roof Cutting Mining TechnologyYU Guisheng, TANG PingTechnology·Innovati84-86,91 