1Study on Stability of Roof-Coal Pillar in Room and Pillar Mining Goaf in Shallow Depth SeamXIE Xingzhi1-4,92Experiment of the Intensified Artificial Freezing on Reaming Borehole Filled with Heat Conductive Material in Local StrataLIU Bo, CHEN Yuchao, LI Dongyang, HUANG Peige, HUANG Mian, WANG Kaiqiang5-93L Type Borehole Ground Grouting Reinforcement Technology of Surrounding Rock in Deep Mine RoadwayYUAN Hui, DENG Jun, PU Chaoyang, AN Xuliang, CHENG Zhenfu, CHEN Yuankun, ZHOU Weijin, WANG Congping, HUANG Jian10-13,174Study on Support Parameters Optimization of High Stress Roadway in Deep MineWU Xin14-175Rotary Mining Technology of Fully-Mechanized Coal Mining Face in Deep Inclined Thick Seam with Soft Roof,Soft Coal and Soft FloorLU Wei, YANG Ke, YANG Xiaojie, HUA Xinzhu, MIAO Jianhua18-21,256Research on Stability of Gateway Retained Along Goaf in Thin Seam with Hard Roof and Hard CoalZHANG Xuefeng22-257Analysis on Crushed Cause of Hydraulic Support in Fully-Mechanized High Cutting Coal Mining Face and Prevention CountermeasuresYIN Xiwen26-298Gateway Retained Along Goaf Technology with Pier Pillar Backfilled with High Water Material in High Gassy MineSHI Guoyue30-32,609Experimental Study on Response Features of Acoustic Emission to Coal Samples During Loading ProcessJIA Bing, NI Xiaoming, SU Chengdong33-3610Analysis on Disaster-causing Mechanism and Key Stratum Compound Effect of Thick Hard Igneous RockSHU Longyong, DENG Zhigang, CHANG Weibin, KONG Shengli37-4111Analysis on Gas Occurrence Influencing Factors in Coal Seam of Xuehu MineLIU Mingju, FU Xianglin, HAO Fuchang, SONG Jipeng42-44,4812Study on Gas Drainage Technology of Throughput Fracturing Permeability Improvement by Borehole in Underground MineTAO Yunqi, LIU Xiao, LIN Haixiao45-4813Study on Determination of Coal Spontaneous Combustion Characteristic Temperature Based on Analysis Method of Index Gas Growth-RateDENG Jun, ZHAO Jingyu, ZHANG Yanni49-52,5614Study on Causes of Gas Abnormal Emission from Limestone Cracking Development ZoneCAO Zhaoqi53-5615Determination on Critical Value of Gas Content Based on Gas Adsorption and Desorption ExperimentCHEN Liang, LIU Mingju, WU Bing, WANG Yinkai, WANG Chao57-6016Study on Gas Drainage Technology of Screen Pipe Putting Down Along Full Length Borehole in Soft Outburst SeamXIAO LiHui, LI Yanming, GUO KunMing, ZHONG Pei61-6417Study on Dust Fall Mechanism and Experiment with Magnetized Water Spraying in Coal MineCHEN Meiling, SONG Wenchao, JIANG Zhongan, WANG Ming, TAN Cong65-68,8718Performance Analysis and Development of Gas Purifying Device Used in Emergency Refuge SystemBO Zhige69-72,6419Design on Lithium-ion Battery Backup Power System in Coal Mine Refuge ChamberXIAO Linjing, CHANG Long, ZHANG Ruixue, YUE Mingchen, GONG Dongliang73-76,10220Experimental Research and Design on Oriental Device of Overall Hydraulic Tunnel Drill RigSHAO Junjie77-80 