1Research Progress of Surface and Underground CBM Combined Drainage in Coal Mine Area in ChinaZHANG Fu-taoSpecial Topic1-52Characteristics of In-situ Stress and Its Effect on Pressure and Permeability of Coal Reservoirs in Northeastern Pingdingshan Mining AreaWANG Xiao-bin, ZHAO Jing, ZHANG Zhi-rong, LI Hai-taoSpecial Topic6-103Research on Physical Properties and Characteristics of No. 15 Coal Reservoir in the Northeast of Qinshui Coal FieldYANG Chang-yong, HAO Chun-sheng, TIAN Qinling, JI Chang-jiang, SHAO Xian-hua, CHANG Hui-zhenSpecial Topic11-174Impact Factors on Gas Adsorption and Desorption of Typical Mining Area in Southwest ChinaZHANG Yong-qiang, HAN Zhi-xiong, XUE Hai-jun, LU Guan-wenSpecial Topic18-235Study on Porosity Characteristics of Macro Coal Components in High and Low Rank CoalJIA Xue-mei, LIN Ya-bing, MA Dong-minSpecial Topic24-276Research Progress and Review on Darcy and Non-Darcy Flow Theory and Diffusion Theory of Coalbed MethanePENG Ying-ming, SHAO Xian-jie, LI Feng, LI Ming-feng, LIU Ze-heng, OYAKA DickensSpecial Topic28-337Optimized Design of Mining Width and Coal Pillar Width in Solid Backfill Strip MiningYIN He-jian, ZHA Jian-feng, ZHONG Chong-wu, MENG Yan-jieDesign Technology34-388Innovation Design of Extra Large Drilling in Hongqinghe MineZHONG SongDesign Technology39-429Discussion on Main Drainage System Design of 1000m-deeper Shaft with Large Water InflowYU Gong-jiangDesign Technology43-4610Application of Membrane Separation Technology in Advanced Treatment of High Salt Mine WaterJING Bo-yong, SHI Yuan-teng, CHEN ZheDesign Technology47-5111Design Of Coal Mine Safety Intelligent Control Information Platform Based on Cloud PlatformWANG Wan-li, SUN Chao, SU Guo-ruiDesign Technology52-5612Design and Key Technology Research of Large Coal Enterprises Reserve Graphic Management System Based on GISCHEN Han-zhangDesign Technology57-6113Optimization of Open-pit Mining Plan Based on AHP-GRAP MethodWANG Xiang-sheng, CHEN Zai-mingDesign Technology62-6714Comparative Analysis of Renewable Energy in Mine and the Selection of Mine Heating SourcesBAI Yan-binDesign Technology68-7315Research on the Freezing Construction Design of East Return Air Shaft in Yuanzigou Coal MineZHANG Hai-rong, WANG Meng, LV Wen-yuConstruction Technology74-7716Outburst Prevention Technology for Main Roadway Coal Uncovering in Deep High Coal SeamYUAN An-yingConstruction Technology78-8017Gob-side Entry Driving Heading Adjacent Advancing Coal Face in the Close Coal SeamFU Shu-jun, WU Le, HE JieConstruction Technology81-8518Technology of Collaborative Control and Floor Heave Treatment for In-situ Retaining RoadwayZHAO Yun-pei, JIA JingConstruction Technology86-8919Technology and Practice of Joint Reinforcement of Deep High Stress Soft Rock Roadway FloorHAO Ming-yue, SONG DaoConstruction Technology90-9220Characteristics of Strata Behavior in Large Inclined Angular Pseudo-inclined Face under Complicated ConditionsXIAO Jia-ping, LIU Shuai, CHI Xiao-louPreduction Technology93-98 