1Intelligent Mining Technology Development Path and Prospect for Three-soft Seam of Deep Coal MineWANG Guo-fa, PANG Yi-hui, REN Huai-weiExpert Form1-62Feasibility Study on Construction of Underground Coal Mine and in Muli Mining AreaGONG Shou-cai, WANG Chang-you, FAN Yue-huDesign Technology7-113Study on Setting Mode and Spacing of Passing Chamber in Gentle Slope Auxiliary Inclined ShaftYU Xin-fengDesign Technology12-154Research of Parameterized Design System for Coal Mine Roadway Section based on VRMineZONG ShuaiDesign Technology16-185Research on the Application of Truck Escape Ramps as Safety Facility for Stall of Trackless Rubber Tire VehiclesNIU Bao-yuDesign Technology19-226Research on Energy Saving and Environmental Protection of Mine DrainageWANG Rong, WANG Xin-yuanDesign Technology23-277An Overview on the Application of Dragline Stripping Technology in Open-pit Coal Mines in ChinaSUN Jian-dong, ZHANG Rui-xin, CHENG Peng, TANG Xiao-qian, WANG Tao, XU Zhong-kui, GUO PeiDesign Technology28-348Study on the Support Technology in Shaft Crossing the Thick Unconsolidated Layers of Piliqing MineLI Ji, DING Zi-weiConstruction Technology35-399Study on Grouting Reinforcement Technology of Shaft Lining Water Gushing in Deep and Thick OverburdenZHANG Jian, ZHU Chang-yuanConstruction Technology40-4310Study on Supporting Technology of Soft Rock Roadway under High Geo-stress in Deep MineWANG Huai-wei, Zhang Peng-chongConstruction Technology44-4611Research on Key Drilling Technology of CBM Tree-like Horizontal WellZHANG Bo, NI Yuan-yong, SHENG Chen, CUI Shu-qing, WU Zheng-tian, QIU Chun-huaConstruction Technology47-5012Experimental Study on Hard Rock Damage by Microwave IrradiationDAI Jun, WANG Yu-liangConstruction Technology51-5413Study on Technology of Sequential Replacement of Gob-side Entry Driving in Fully Mechanized Mining Face with Super-long Advancing DistanceTIAN Ke, REN Ya-jun, XU Chun-hu, WU ChaoProduction Technology55-5914Study on Gas-control of the 1206 Fully Mechanized Coal Face in Sima Coal MineLIU Jun, ZHAO YongProduction Technology60-6315Application of Gas Drainage Technology in High-level Directional Long Drilling HoleHOU Guo-pei, GUO Kun-ming, YUE Mao-zhuang, WANG Yi-leiProduction Technology64-6716Study on Application of Borehole Flow Method in Investigation of Borehole Extraction Radius in Mining Coal SeamGUO Shou-songProduction Technology68-7217Application of APF in Coal Mine Power Grid based on LCL-filterWANG FengProduction Technology73-7618Characteristics of Mining Stress in Deep-buried and Extremely Thick Coal Seam and Its Influence on Adjacent RoadwaysREN Jian-xi, ZHANG Wei-jun, ZHANG Kun, JING ShuaiResearch and Discussion77-8119Logging Density Model of Coal Seam and Effective Porosity Calculation in Coal Bearing Strata of Sijiazhuang Minefield of Yangquan Mining AreaYU Zhen-feng, HAO Chun-sheng, SHAO Xian-hua, YANG Chang-yong, YAO Jin-bao, WANG WeiResearch and Discussion82-8620Research on Reliability Improvement of the Bridge Structure of Mine Articulated Four-wheel Drive VehicleHAO Ming-ruiResearch and Discussion87-90 