1Analysis on Bench Safety and Stability of Dragline Operation in Surface Coal MineZHANG Rui-xin, WANG Zhong-qiang, WU Duo-jin, CHEN De-fu1-52Prediction and Prevention Technology of Mine Pressure Bumping in Thin Seam Mining of Taoshan MineZHAO Yu-lin, MAO Wei-min, LIU Xiao-fei, XU Fu-le, WANG Chao6-93Analysis and Countermeasures of Powered Support Jammed Cause in No. 6130 Coal Mining Face of Qidong MineCHEN Xiu-you, WANG Qing-xiong, GAO Feng, SHAN Zhen-jun, HAO Xian-jie10-134Reinforcement Technology of Gateway Retained Along Goaf Under Influences of Serious Dynamic PressureZHANG Zhen, LIN Jian, FAN Ming-jian14-17,225Strata Behavior Features of Shallow Depth Thin Seam Mining Under Sand-Soil Gully SlopeWANG Xu-feng, ZHANG Dong-sheng, LU Xin, XU Meng-tang, QIU Xiao-xiang18-226Numerical Analysis on Surrounding Rock Stability for Gateway Retained Along Goaf in High Support Bearing Pressure ZoneWU Jing-yun, LI Xue-bin, MA Peng-peng, TIAN Ying-nan, LU Kan23-267Bolt and Anchor Deformation Matched Technology Applied to Mining Gateway SupportNIU Fu-long27-29,338Pillarless Mining Technology with Y Type Ventilation and Gateway Retained Along Goaf in Wangfenggang MineYANG De-chuan, GAO Ming-zhong, XU Yi-yong, HAN Lei30-339Stability Analysis and Anti-Deformation Design of Buildings Above Mine GoafWANG Lu-he34-36,4010Experiment on Limit Shearing Strength Parameters of Bolt Anchored SectionGU Shuan-cheng, YE Gen-fei, CHEN Xian37-4011Application of Liquid Nitrogen Ground Freezing Technology to Repair Subway Tunnel in Soft Soil BaseZENG Tao41-43,6012Deep Borehole Blasting Technology for Hard Rock Roadway in Liudian MineCHENG Zhen-fu44-4613Complex Multi Function Anti-freeze Influenced to Durability of Minus Temperature Mine Shaft Liner ConcreteYANG Ming-fei, NI Xiu-quan, WANG Xiang47-4914Grouting Reinforcement Technology for Mine Roadway Passed Through Broken Zone of Water Bearing FaultZOU Guang-hua, ZHANG Feng-yan, SONG Yan-bo50-5315Experiment Study on Desorption Method to Measure In-Situ CO Content of Seam in Tashan MineWU Jian-ming, GUO Hui-yu, SONG Jin-wang, U Yuan54-5616Control Technology for Gas Area in Soft Low Permeability Deep Outburst SeamMA Yong-qing57-6017Analysis on Gas Geological Law of No.15 Seam in Bao'an MineJIANG You, JIN Shuai, ZHANG Dong-yun, LIU Chong, LI Xin, SU Guo-qiang61-6318Study on Cutting Drum Parameters of Coal Shearer Affected to Temperature Raising in Coal Mining FaceLI Xiao-huo64-6619Research on Key Technology of Remote Monitoring and Control System for Coal ShearerLIU Jun, WANG Zhong-bin, NIU Ke, ZHU Wen-chuan67-69,9120Design and Practices of Rapid Radio Frequency Identification Based on nRFgE5 Jumping FrequencyWANG Wen-qing70-73,78 