1Numerical Test of Gas Pre-drainage with Dense Boreholes in Outburst Coal SeamYI Li-jun, YU Qi-xiangTest and Research1-4,92Experimental Study on Multiphase Flow Field of Gas Transportation in Drivage TunnelWU Nan-nan, GUO Chu-wen, XIA ShuangTest and Research5-93Study on Influence Law of Ventilation Time to Temperature of Surrounding RockZHU Ting-haoTest and Research10-134A Experiment Contrast Study of CO2 and N2 Inhibited Oxidation of Spontaneous Combustion of CoalWANG Zhen-ping, MA Li, WEN Hu, WANG Xu-youTest and Research14-175Study on Rational Staggered Distance of Closed Depth Coal Seam Mining Safety with Influence of Upper Fire ZonesKEN Jie, WANG Fang-tianTest and Research18-20,246Study on Damage Prediction and Countermeasures of Mining under Village HouseLIU Ji-yan, LIAN Xu-gang, LIU Ji-bo, CAI Yin-fei, DAI Hua-yangTest and Research21-247Gas Drainage Technology in Single Soft Outburst Coal SeamTechnology Experiences25-278New Comprehensive Gas Drainage Technology in Gassy Coal FaceWANG Guang-jian, XU Yan-ling, CHEN Ai-heTechnology Experiences28-309Practice of Gas Drainage in Xuandong MineREN Nai-jun, ZHANG Hai-taoTechnology Experiences31-3410Safety Protection System for Preventing Coal and Gas Outburst in Coal Roadway Heading FaceWEN Shi-pingTechnology Experiences34-3611The Technology of Controlling Gas for Shaft to Uncover 4# Coal Seam in Deep Extra-thick Frozen Coal SeamTechnology Experiences37-39,4512Determination of Gas Drainage Radius in Ji16-17 Coal Seam in NO.1 Coal Mine of Shoushan in Piagbao CompanyDU Ze-shengTechnology Experiences40-4213Application of Intergrated Technology, for Controlling Water in Wutongzhuang MineLIU Cun-yuTechnology Experiences42-4514Study and Application of the Formation Mechanisms and the Key Control Techniques of Spontaneous Combustion in the High Temperature Coal Mine of BarapukuriaZHAI Xiao-wei, WEN Hu, YUE Bao-xiangTechnology Experiences46-4815The Study of Plateau Mine Oxygen SupplyCUI Yan-hong, XIN Song, YIN Yu-pengTechnology Experiences49-5216Study and Application of Rotary Mining Technology in Mechainzed Mining FaceLIU Ti-minTechnology Experiences52-5417Design of low-voltage Feeder Switch Intelligent Protective Device Based on LPC2294ZHAO Jia, ZENG Wen-bo, XIE Miao-miaoTechnology Experiences55-5718Multiplexing Research Based on Monitoring RS485GUO Zheng-hui, ZHANG Zhi-binTechnology Experiences58-6019The Development of Wireless Temperature Measurement System for High Voltage Switchgear in Coal MineSHI Li-ping, LIANG Jing-wan, LIU Zhi-yuanTechnology Experiences61-6420Installation and Maintenance of Shaft Single Rope CageLI Chun-haiTechnology Experiences64-66 