1Mine Communication Technology and SystemSUN Ji-ping1-3,882Compressed Air Self Rescue System in Underground MineLU Jian-zhang4-6,323Mine Water Supply and Rescue SystemLU Jian-zhang7-8,924Stability Lost Mechanism and Control Technology of Deep Soft Rock Roadway for Up and Down Seam MiningZONG Yi-jiang, HAN Li-jun, JIA Wen-liang9-135Surrounding Rock Comprehensive Control Technology of Mining Gateway Under Complicated ConditionsCHEN Deng-hong, HUA Xin-zhu, LI Ying-ming14-16,216Analysis on Floor Stress and Failure Depth of Fully Mechanized Top Coal Caving Mining FaceZHANG Wen-bin17-217Optimization Experiment on Mixing Ratio of New Grouting Material to Prevent Mine Floor Water InrushXU Guang-quan, YAN Jia-ping, XIA Xiao-liang22-248Study on Coal Pillar Pressure Behavior Law of Fully Mechanized High Cutting and Top Coal Caving Mining in Shallow Mining DepthFAN Zhi-zhong, REN Yong, XU Gang, HUANG Zhi-zeng25-27,769Surrounding Rock Control Technology of Gateway Driven Along Goaf with Y Type Ventilation In Deep MineZHANG Deng-long, HUA Xin-zhu28-3210Support Technology for Pillarless Gateway Driving Along Goaf Side of Second Mining Face in Seam with Soft Roof, Soft Coal and Soft FloorWEI Sheng-li33-35,7611Study and Application of Bolt Support Technology to Mining Gateway with Complex RoofDUAN Hong-min, FAN Xue36-3812Research and Practices on Deep Mine Soft Rock Support in Dayan Mining AreaPENG Wei39-4213Rapid Shaft Sinking Technology Of Mine Deep Freezing Shaft over 1000 m DeepWAN Yuan-chao43-4614Optimized Design on Mining Technical System of Continuous Miner in Shendong Mining AreaLIANG Da-hai47-49,5415Study on Seam Gas Deposit Law as well as Gas Prevention and Control Technology in Tunliu MineWANG Yan-kai, ZHAO Xing-chao, YOU Bo50-5416Application on Comprehensive Gas Drainage TechnologyZHANG Heng-wen55-5717Gas Control Technology and Application to Fully Mechanized Top Coal Caving Mining Face in Zhaojin MineXU Hong-jie58-60,6518Analysis on Gas Migration Law Simulation of Coal Mining Face and Gas Control MeasuresCHENG Tao, YANG Sheng-qiang, XU Quan, L(U) Wen-ling, HE Lei61-6519Study on Optimized Plan of Mine Ventilation System Reconstruction in Longtan Coal MineLI Xiang-dong, ZHANG Qing-hua, CHEN Zhong-ming, YU Lu-rong66-6820Design on Rapid Installed Device of Water Drainage and Emergency Rescue in nine ShaftSUN Bao-jing, MENG Guo-ying69-72 