1Key Layer of Direct Roof and Support Suitability of Fully Mechanized Top Coal Caving Mining Face in Ultra Thick SeamLIU Jin-rongMining and Underground Engineering1-4,82Equipment Installation Technology Along Dead Driving Face of Fully Mechanized Top Coal Caving Mining FaceLIU Dian-fu, LU Zhi-long, ZHU Kong-shengMining and Underground Engineering5-83Research and Application of Upward Top Coal Caving Mining Technology in Thick SeamCHEN Yong, WANG Hong-sheng, GUO Nian-bo, ZHANG Dong-shengMining and Underground Engineering9-134Technology and Application of Multi Continuous Rotary Mining to Fully Mechanized Longwall Coal Mining FaceWANG Qi, ZHAO Ming-zhouMining and Underground Engineering14-165Grouting Reinforced Support Technology for Gateway with Broken Surrounding Rocks Under the Mining Activity InfluencesLIU Wen-chaoMining and Underground Engineering17-206Application of Controlled Directional Group Borehole Drilling Technology to Grouting in Xuandong Ventilation ShaftWANG Wan-haiMining and Underground Engineering21-23,267Discrete Element Simulation Analysis on Bolt Support for Broken Structure Roof of Mining GatewayZHU Jiang-hong, JI Hong-guangMining and Underground Engineering24-268Analysis on Numerical Simulation of Rational Width for Coal Pillar in Different Sections of Fully Mechanized Coal Mining Face in Seam IslandREN Jian-feng, GAO Ming-shi, LI Ya-jun, ZHAO You-gong, GUO YU-shunMining and Underground Engineering27-309Technology and Practices on Deep Mine Shaft Sinking Through Multi Outburst SeamWANG Hou-liang, WANG Ben-zhong, WANG Jin-hong, SUN Bao-ren, WEI Jin-dong, ZHANG SongMining and Underground Engineering31-35,3810Calculation Method of Surface Pre-grouting Result Inspection and Measurement for Mine Shaft SinkingZHOU Hua-qun, SHAO Shi-puMining and Underground Engineering36-3811Experiment and Research on Deep Borehole Blasting in Mine Rock Roadway with Thick Soft and Weak PartingSHAN Ren-liang, HUANG Bao-long, ZHANG Huai-wenMining and Underground Engineering39-41,4512Discussion on landslide Mechanism of Hill Affected by Mining Activities in Yaojie Mining AreaSHANGGUAN Ke-feng, WANG Geng-yuMining and Underground Engineering42-4513Prediction on Electromagnetic Radiation of Mine Pressure Bumping Based on Control MapLI Zhong-hui, WANG En-yuan, SONG Xiao-yan, LIU Xiao-fei, DENG Hong-boMining and Underground Engineering46-4814Test on Pressure Released Blasting Applied to Seam Opening of Cross-Cut in High Gassy and Low Permeability SeamCHEN Peng, GUO Jin-dong, LI Zhong-hui, XI Run-ze, YANG BoMining and Underground Engineering49-52,5615Dynamic Features and Prediction Method of Large Roof PressurizedZOU De-yun, ZHANG Guang-wen, XIN Cheng-peng, ZHANG Ming-huiMining and Underground Engineering53-5616Lab Mixing Ratio Test of Drilling Mud Flushing Liquid for Surface Ground Pre-GroutingDING Zhen-yuMining and Underground Engineering57-5917Numerical Simulation on Air Leakage Flow Field in Spontaneous Combustion Three Zone of GoafHUANG Jin, YANG Sheng-qiang, CHU Ting-xiang, XU Quan, HUANG Jun-wanSafety and Technology Engineering60-6318Test and Research on Gas Desorption Law of Intensive Failed CoalJIA Dong-xu, CHEN Xiang-junSafety and Technology Engineering64-6619Analysis and Practices on Reduction and Resistance of Ventilation System in Taoshan MineYU Hui-hua, SHI Yan-fu, ZHA Zhong-yiSafety and Technology Engineering67-68,8820Application of Special Air Return Mine Shaft to Mine Safety ProductionYAN Guang-zhun, FENG Yao-ting, SHI JunSafety and Technology Engineering69-71 