1Study on Safety Evaluation of Long Inclined Shaft Service in Coal Mine Aeolian Sand LayerFENG Xuhai, LYU Wenhong, ZHENG Tianbin, WANG Jianping, SHAO Fangyuan, GAN Binlin1-6,122Discussion on Rational Grouting Technical Parameters for Search of Limestone Region in Seam FloorGAO Gangrong7-123Soft Rock Support Technology of Large Cross Section Mine Inclined ShaftLIU Yan, XIN Delin13-164Mine Gas Drainage Technology and Optimization on Location in High Level Gas Drainage Gateway of Zhaozhuang No.2 MineWANG Wenlin, LI Xiang17-205Application of Smooth Blasting Technology in Frozen Soil Excavation of Deep ShaftZhang Daohai, Guo Min, Zeng Peng21-256Comprehensive Evaluation on Stability of Coal Pillar Left in Goaf of Room and Pillar MiningWANG Chao, XU Yangqing, GAO Xiaogeng26-29,257Residual Heat Utilization Technology of Mine Water in Tangjiahui Coal MineZHANG Peng, GAO Xiaoqiang30-338Low Solid Polymer Drilling Fluid Applied to Water Disaster Control in Surface Ground Region of Jiaozuo Mining AreaWANG Xiang, LI Weiqi, WANG Mingtao, ZHANG Liwen, AN Xuliang, HE Hongwei, ZHANG Hongfa, JI Xiaolong34-399Study on Effect Influence of Different Side Chain Molecular Weight to Polycarboxylate SuperplasticizerJI Hongguang, CHEN Jianqiang, LI Yuefeng40-4310Study on Reset Method of STM32F107 Single-chip Microcomputer Realized with Combination of C Programming Language and Assembly LanguageYANG Ming44-4611Study on Surrounding Rock Control Measures of Fully Mechanized Caving Island Working Face Roadway in Inclined Coal SeamZHAO Yinhu, XIE Fuxing47-5012Study on Safety and Reliability of Power Supply to Fully Mechanized Coal Mining Face in Hongqingliang Coal MineFU Wenjun, REN Qiang, ZHANG Liang51-5413Underground Mine Transportation Technology of Large Diameter Raise Boring Machine in Metal MineZHOU Xing55-57,3914Application of Electro-hydraulic Control System to Hydraulic Powered Support in Fully Mechanized Coal Mining FaceMENG Xiangyu58-60,20 