1Introduction on Design of Longgu MineGUO Jun-shengDesign and Technology1-32Analysis on Suitability of Hydraulic Powered Support Applied in Fully Mechanized High Cutting Coal Mining Face in Shallow Depth SeamLIU Jiang, ZHANG Xiao-fu, ZENG Hai-liDesign and Technology4-53Determination on Work Resistance of High Cutting Hydraulic Powered Support Applied to Mining in 7 m Ultra Thick Seam of Shangwan MineYANG Bao-gui, JI Peng-kui, QI Yue-feng, GUO Hai-long, QIN Xue-guiDesign and Technology6-84Design of Coal Mine Land MeasuresHAN Feng-feiDesign and Technology17-18,215Discussion on Necessity of Antifreezing for Mine Special Intake Ventilation ShaftSHU Xiao-boDesign and Technology22-236Applied Study on Bolt and Grouting Reinforced Technology to Support of Mine Roadway in High Stress and Broken Swelling RockCHEN Xin-nian, ZHANG Kun, REN Jian-xi, XI Jia-miConstruction Technology26-287Research on Sealing Technology for Poor Sealed Boreholes in Underground Mine of Zhaogu No.2 MineCHEN Xin-mingConstruction Technology33-358Practices on Seismic CT Technology to Detect Pilot Support Pressure Distribution of Coal Mining FaceFU En-jun, WANG Shu-wen, SHI Lai-yang, ZHU Ling-fu, ZHANG LeiProduction Technology39-419Joint Mining Technology of Gas and Coal in Thin Seam Group with Closed Distance in Qitaihe Xinli MineSHU Yan-min, ZHAO Yi, SUN Jian-hua, FAN Xing-yu, ZHANG Jun-wenProduction Technology42-4410Analysis on Outburst Elimination Measures and Evaluation on Coal Mining Face with Coal and Gas Outburst Danger in Potential in Machi MineJIANG Ji-lan, YUAN Dong-sheng, ZHANG Zi-minProduction Technology48-5011High Pressure Hydraulic Fracturing Technology Applied to Outburst SeamFENG Bao-xing, DONG Xian-fengProduction Technology58-6012Study on Mine Strata Pressure Behavior Law of Fully Mechanized Shortwall Mining in Steep Inclined Thick SeamZHANG Wei, XIANG Xiao-yu, ZHANG Rui-xin, WANG Zhong-wu, WANG Yun-peng, YANG ZhaoDiscussion on Research61-63,6613Study on Mine Pressure Bumping Mechanism of Coal Mining Face in Xinxing MineQIN Zi-han, PAN Jun-fengDiscussion on Research64-6614Research on Hydraulic Powered Support Remove Technology for Coal Mining Face with Small Intersection AngleMA Qi-hua, LI Yi-huDiscussion on Research67-6915Analysis and Study on Stability When Xikouchi Tunnel Excavated Through Mine GoafZHANG Zhi-pei, PENG Hui, YANG Xi-pingDiscussion on Research70-7216Main Roof Broken and Falling of Coal Mining Face Connected to Dislocation Seam and Main Roof ClassificationWANG Zhi-qiang, GAO Quan-chen, LIU Gui-jun, WU BoDiscussion on Research73-75,7817Study on Reservoir Pressure Transmission Law During Gas Mining and Drainage Process of Coal Bed Methane WellDU Yan-fei, WU Cai-fang, ZOU Ming-jun, WANG Cong, IANG Wei, LEI BoDiscussion on Research87-8918Experimental Study on Slurry Mixing and Preparation for Slime Floatation in Kailuan Mining AreaXU Zhong-jin, TAO Xiu-xiang, HU Zhong-hoDiscussion on Research92-9419Study on Regulator Affected to Floatation Effect of High Ash and Difficult Preparation CoalWEN Han-rui, WANG Yong-tian, ZOU Wen-jie, ZHANG MingDiscussion on Research95-9720Discussion on Settling Time of Slurry Water Flocculation Settlement ExperimentLI Ya-pingDiscussion on Research98-99 