1@@前插12Design Idea and Characteristics of Majialiang Coal MineBAI Jin-shengDesign and Technology1-33Analysis on Reasonable Layout of Air Return Roadway in Large Dip Angle Thick Coal Seam Fully Mechanized Working FaceGU Ya-dan, BAI Jun-jie, WANG Shao-zhuo, LU Shu-deDesign and Technology4-64Narrow Coal Pillar Width Determination of Large Section Gob-Side Entry Driving in Fully Mechanized Top Coal Caving FaceJI Chun-xu, YANG Yong-kang, FENG Guo-ruiDesign and Technology7-105Gas Drainage Plan Design of Fully Mechanized Working Face in Dongjiahe Coal MineLI Shu-gang, ZHAO Yong, XU Man-gui, SHUANG Hai-qingDesign and Technology11-136Determination of Extended Bench Height of Dragline in Heidaigou Opencast Coal MineCHENG Peng, XIAO Shuang-shuangDesign and Technology14-177Node Design in Accurate Positioning System for Underground Coal MineTANG Li-jun, WU WeiDesign and Technology18-208Study and Calculation on Torsion of Deep Mine Hoisting RopeLI Nan, LI Yu-jinDesign and Technology21-239Discussion on "Methods for Evaluating the Floatability of Fine Coal"GUO Jian-xinDesign and Technology24-2610Process Transformation of Tianzhuang Coal Preparation PlantLI Mao-gangDesign and Technology27-29,3311Design Experience of Combined Buildings of Coal Mine Lamp Room, Bathroom and Task Assignment RoomSHI Hua-longDesign and Technology30-3312Research and Discussion on Risk Evaluation Methods for Environment of Gangue FieldSONG Rong-huaDesign and Technology34-36,3913Stress Analysis of Large Reinforced Concrete Coal Bunker with Spherical Shell StructureWANG De-feng, ZHU Yue-liDesign and Technology37-3914Study on Influencing Factors and Countermeasures of Floor Heave in High Ground-Stress RoadwayMA Yong-zhongConstruction Technology40-42,4515Research on Roadway Tunneling and Support Technology for Soft and Broken Coal SeamZHANG Ming-lu, LIANG Lei, ZHANG Xin-guo, LEI Xi-liangConstruction Technology43-4516Support Technology of Large Dip Angle Soft Coal Seam in PlateauFAN Zong-fu, GUO Shi-qiang, MA Wen-linConstruction Technology46-4817Study on Surrounding Rock Stability Classification and Deformation Control of Large-Span Open-OffMA Zhan-yuanConstruction Technology49-5218Pre-Grouting Crossing Aquifer Technology in West Air Return Shaft of Shiyakou Coal MineLI Si-biao, YANG Ru-jun, GAO Jin-shanConstruction Technology53-54,5719Discussion on Application of Directional Drilling Technology in Complex Formation of Coal MineLI Yan-mingConstruction Technology55-5720Study on Rapid Construction Technology of Large Section Open-off Cut in Steep Coal SeamWANG Yi, XIAO Li-ping, LI Kai-xue, LIU Hua-yun, CHEN LiConstruction Technology58-60,63 