1Technology of Regional Advance Water Prevention and Control Applied to Pressurized Coal Mining Zone Above Ordovician Limestone Karst WaterZHAO Qing-biao1-4,212Analysis on Karst Cover Collapsing Mechanism Caused by Underground Coal MiningWANG Ming-li5-7,113New Inorganic Grouting Material Applied to Reinforce Broken Surrounding RockWANG Mao-sheng, WANG Meng, DU Hai-long8-114Theoretical Research on Cavebody Shapes of Top Coal Caving in Fully-Mechanized Caving FaceSONG Xiao-bo, WANG Peng-yu12-145Study on Mechanism of Rib Spalling in Large Cutting Height Rise Mining Face in Soft Thick SeamFU Yong-gang, LI Ying-ming, XU Xian-sheng15-186Design and Application of Gangue Vertical Feeding System for Mine Fill MiningTONG Qiang, CHE Yu-long19-217Application of Connected Long Bolt Support in High Cutting and Narrow Coal Pillar Gateway of Deep MineFENG Ji-cheng, MA Nian-jie, CAI Meng, XU Ting-hui, MA Wang22-24,378Determination on Range of Stress-relaxed Area in Goaf of Low Permeability Single Coal SeamZHANG Ming-jie, FU Shuai, TAN Zhi-hong25-289Study on Water Sealing Fire Barriering and Explosion Venting Technology Applied to Gas Transport PipelineHUO Chun-xiu29-3210Effect of Coalbed Methane Recovery and CO 2 Storage in Deep Seam Based on CCUSZHANG Wen-dong, TANG Shu-heng, ZHANG Song-hang, QIAO Liu-hu, YI Jun-jie33-3711Gas Drainage Technology of Mining Fractured Zone in High Gassy and Contiguous SeamsHUANG Jing-en, CHENG Zhi-heng, QI Qing-xin, JI Wen-bo, ZHANG-Lang38-4112Structure Control on Gas Deposition in Qidong Minefield of Huaibei Mining AreaLI Heng-le, QIN Yong, ZHANG Yu-gui, JIAN Kuo42-46,5013Analysis on Spontaneous Combustion Oxidization Law ofⅡ Type Spontaneous Combustion SeamWEI Wei47-5014Progress and Prospect of Gas-Water Relative Permeability of Coal and RockMENG Yan-jun, TANG Da-zhen, XU Hao, SHEN Wen-min, ZHAO Jun-long51-5515Determination and Application on Critical Value of Drilling Cuttings Gas Desorption IndicesKONG Sheng-li, CHENG Long-biao, WANG Hai-feng, ZHOU Hong-xing56-59,6416Fluid Effect During Coalbed Methane Well Drainage of High Rank Coal Reservoir Under Pressure ControlSONG Ge, FU Xue-hai, GE Yan-yan, LI Sheng60-6417Coal Structure Affected to Coalbed Methane Development in Qinnan RegionHU Qi, WANG Sheng-wei, ZHANG Chen, HE Jun-hua, LIU Jian-hua, ZHANG Xiao-fei65-68,7418Present Status and Outlook of Key Technology for Mine Roadway Heading EquipmentHAO Jian-sheng69-7419Design on Safety Monitoring and Control System of Mine Friction HoistingLI Xia-quan75-78,8220Experiment Study and Design of Thermal Accumulated Type Low Density Gas Power Generation SystemMA Yun-long, CHEN Ning, XU Li-li, WANG Li-wei, SUN Ling-xi79-82 