1Several Practices on Determination of Mine Development PlanWANG Wen-shuDesign and Technology1-32Comparison and Selection on Location of Industria Park in Yangjiaping MineLIANG Zu-junDesign and Technology6-83Discussion on Fraction Resistance Calculation of Guide Feeding Chute on Belt ConveyorWANG Yu, LI Hao-yuanDesign and Technology11-134Design and Study on Safety Early Warning System of Mine Gas Explosion Base on Internet of ThingsLIU Xiang-lan, ZHAO Xu-sheng, DONG Gui-gangDesign and Technology17-195Analysis and Study on Optimization of Mine Ventilation System in Yaoqiao MineCHENG Gen-yin, LI Bo, ZHANG Jing-gang, ZHU Kai, YAO Hong-zhangDesign and Technology20-22,256Study and Application of Backfill Technology with Ultra-High Water Material in Ruifeng Coal MiningLI Chun-sheng, AN Yong-ye, YU Jian-haoConstruction Technology40-417Study on Advance Pre-Grouting and Reinforced Technology of Broken Roof in No.72 Seam Coal Mining Face of Xutuan MineZHA Wen-hua, HUANG Rong, HUA Xin-zhuConstruction Technology44-478Study on Thickness Variation of Thin Base Rock Affected to Mine Pressure Behaviors of Coal Mining FaceLIAN Qing-wang, SONG Xuan-minProduction Technology48-509Practices on Rapid in Mine Transportation of Equipment for Fully Mechanized High Cutting Coal Mining Face in Hongliulin MineWANG Zhi-weiProduction Technology59-6110High Power Mine Submersible Pump Applied to Coal MimeZHANG YangProduction Technology64-6611Numerical Simulation of Overburden Strata Failure Law in Fully Mechanized Top Coal Caving Mining in Slices of Ultra Thick SeamYU Xue-yi, LI Xing-liang, WANG PengDiscussion on Research67-69,7312Estimation on Plastic Zone of Surrounding rock in Mine Roadway Base on Hock-Brown CriterionGU Shuan-cheng, ZHANG LeiDiscussion on Research70-7313Practices on Pressure Balanced Mining Technology of Coal Mining Face in Seam with Short Distance to Above SeamLU Guo-liang, WANG Hong-wei, JIANG Yao-dong, SHAN Ru-yue, WU Zhi-jieDiscussion on Research74-7614Mechanism and Simplified Mechanics Model of Mine Pressure Bumping OccurredZHAO Hong-bao, PAN Wei-dong, WANG XinDiscussion on Research77-79,8315Calculation on Initial Weighting Interval of Main Roof in Horizontal Coal Mining Face and Location Determination of Gas Drainage GatewayZHANG PengDiscussion on Research80-8316Study on Support Vector Machine Method Prediction of Artificial Ground Freezing Temperature FieldYAO Zhao-ming, LI Zheng-fei, CHEN Jun-haoDiscussion on Research87-8917Experiment Study on Lignite Dewatering Base on Microwave TechnologyYANG Jing-chao, XIAO Lei, XU Li-hua, ZHANG Wen-juanDiscussion on Research93-94,9718Analysis and Study on Operation Resistance Coefficient Affected to Scraper Conveyor SystemQU Nai-ruiDiscussion on Research95-9719Study on Metal Magnetic Memory Testing Technology of Welding Seam on Hydraulic Powered SupportSHA Bao-yinDiscussion on Research98-10020Analysis on Heavy Tail Properties and Economic Implication of Mine Safety Risk in ChinaZHANG Zi-ran, XU LiangDiscussion on Research107-109 