1Analysis on Research Tendency of Horizontal and Directional Drilling Technology Based on BibliometricsXU Yangqing, QIAO Longteng, YANG Longwei, JIANG Qiangqiang, RUAN Zhuang, CHEN Tao1-62Key Launching Technology of Tunnel Boring Machine Applied to Mine Inclined Shaft in Water Softening Sandstone StratumXIONG Wei, NIU Bin, YANG Ming, LI Mingjing7-133Preparation and Construction Technique of High Performance Concrete for Freezing Shaft Lining in New Auxiliary Shaft of Qianyingzi Coal MineWANG Guoqing, DING Hongtao, WANG Yazhou, HAN Tao14-174Defect Repair Technology of Air Return Mine Shaft Lining in SDIC Hami No.1 MineWANG Qun, WANG Yuan18-205Study on Grouting and Water Sealing Technology of Water Pumping Chamber in Mining Block of Rongkang Coal IndustryLYU Jinglei, LIU Linsong, LI Xiang21-246Design and Construction on Freezing,Excavation,Lining and Support of Large Cross Section Mine Inclined ShaftZHANG Yatao25-297Study on Ore Passing and Crushing Technique Closed to Unloading Station in Underground MineLIU Haisheng, LIU Weiguo, WU Xu, DONG Hua, ZHANG Lingfei30-34,178Application of Management System to Iron Phosphate Lithium-ion Battery PackLIU Liangping35-39,249Brief Analysis on Construction Method of Reserved Walkway Access for Coal Bunker Construction in Underground MineSHI Zhengjing, DAI Haijun40-4210Exploration on Ecological Restoration and Control of Coal Mining Subsidence Area with High Potential Water Level in"Huainan and Huaibei"TONG Gejun, PANG Jianyong, JIANG Ziliang, DOU Huihui43-4811Test and Analysis on Moisture Content Rate Effected to Compressive Strength of Freezing Sandy SoilZHANG Yucheng, MA Qinyong49-53,42123-D Elastic Analysis for Shaft Ling Considering the Combined Bearing Capacity of the Surrounding RockWANG Jianzhou, ZHOU Yang, LIU Wenmin, WANG Pengyue, PEI Jicheng54-6113Analysis on Boring Feasibility and Construction Effect of Raise Boring Machine Applied to Large Diameter Mine Ventilation Shaft in Linfen Mining AreaRONG Jian, CHENG Shouye62-66,6114Analysis on Mine Shaft Drilling Method Applied to Mine Shaft Sinking in Western China Area——Taking the Construction of Air Inlet Shaft in Kekegai Coal Mine As an ExampleCUI Mingyuan, LIU Jinyu, LI Xiangyu, HUANG Jiuyuan67-70,48 