1Test on Hard Top Coal Pre-Blasting and Weakening for High Gassy Fully Mechanized Top Coal Caving Mining FaceSUO Yong-lu, SUN Shu-liang, DUAN Wang-shuan, LIU Jian-pingMining and Underground Engineering1-32Numerical Simulation and Calculation on Plastic Zone Width of Coal Pillar for Strip MiningLIU Gui, HAN Bang-hua, XING Feng, GUO Wen-yin, DU Ke-huiMining and Underground Engineering4-6,373Rapid Passing Through Fault Technology of Fully Mechanized Gateway DrivingZHOU Ming, WANG Tong-ji, ZHANG Wei-song, ZHANG Dong-sheng, MA Li-qiangMining and Underground Engineering7-9,504Analysis on Stability of Coal Pillar in Goaf Area of No. 11 Seam in Tangshangou MineWU Shi-zhen, GAO Run-ping, HUANG Qing-guoMining and Underground Engineering10-125Stability Analysis of Mining Gateway under Seam Group Mining with Closed Distance Between Seams in Cuijiazhai MineLIU Jian-junMining and Underground Engineering13-166Additional Strain Variation Law of Mine Shaft Lining under Joint Effect of Additional Force and TemperatureJING Liu-jie, WANG Bo, SHANG Xiang-yu, HU Kun, ZHONG Gui-rongMining and Underground Engineering17-197Location Optimization of Mining Gateway under Goaf in Seam with Closed Depth in Hexi MineLIU Zhi-yaoMining and Underground Engineering20-228Fully Mechanized Coal Mining Face Rapid Removing Method with Trackless Rubber Tyre VehicleZHANG Dian-binMining and Underground Engineering23-259Study on Critical Value of Coal and Gas Outburst Prevention Prediction Sensitive Index in Deep MineZHANG Yong-jiang, MENG Xian-zheng, TONG Bi, XIA Yong-junSafety and Technology Engineering26-29,3310Application of Electromagnetic Radiation Technology to Outburst Prevention in Yanmazhuang MineLI Bo, LI Zhong-hui, YANG Ming, YANG Dao-wei, FENG Zhan-wenSafety and Technology Engineering30-3311Application of Pressurized Cementation Sealing Technology with Casing to Gas Pressure MeasurementLI Bo, LI Chang-song, WEI Jian-ping, HAN Hong-wei, KONG Xiang-huiSafety and Technology Engineering34-3712Study on Outburst Elimination Test of Coal Mining Face with Outburst Danger in PotentialZHANG Jing-liSafety and Technology Engineering38-4013Thick Seam Gas Drainage Technology and Practices in Jincheng Mining AreaHE Tian-cai, LI Hai-gui, ZHANG Hai-junSafety and Technology Engineering41-43,5514Research on High Pressure Water Jet Cutting to Improve Gas Drainage EfficiencyYU Hong, LU Ting-kanSafety and Technology Engineering44-4615Gas Drainage Technology of Goaf Along Up Section of GatewaySONG Jun-jie, WANG Zhao-feng, SHAN Zhi-yongSafety and Technology Engineering47-5016Parameter Mode Method of Arc Extinguishing Coil Grounding System to Identify Fault CircuitGAO Yan, LIU Lei, LI Ning, WANG Yan-wenMachinery and Electric Automatization51-5517Selection Design on Trackless Rubber- Tyred Auxiliary Haulage System in Underground MineZHANG Jun-feng, LI Ke-min, WANG Bin, YANG HeMachinery and Electric Automatization56-5818Calculation Method of Site Measured Piston Pump Discharged Volume Base on Inhaled Volume EfficiencyGUO Guang-ming, MA Xing-min, ZHAO Qiao-zhi, ZHOU Li-zhi, HAO Ming-rui, WU MiaoMachinery and Electric Automatization59-62,6719Technical Improvement of HZ Central Rotary Clamshell MuckerZHANG Guang-zeng, WANG Rong-guangMachinery and Electric Automatization63-6720Hydraulic System of ZDY4000L Crawler Driller Base on Pump Controlled Hydraulic TechnologyYAO Ke, FAN Dong, YIN Xin-shengMachinery and Electric Automatization68-70,119 