1Deformation Feature of Surrounding Rock in Actual Mining Roadway Supported by U-Steel Support in Dongzhuang Coal MineWANG Qin-zhi1-32Testing the Lubricant Rationalization of Reducing Gear Using the Elastohydrodynamic Lubrication TheoryFU Yang-quan, ZHANG Gao-ming, HUANG Xiao-dong3-53Measurement of Premature Consolidation Pressure of Soil and Its Influencing FactorsWU Xin-xin5-64Analysis of Comprehensive Utilization of Ground Water Resources in Xuzhou Mining AreaZHANG Tao7-95Rational Plan of Products and Industrial Structure for Business Diversification in Coal EnterprisesHONG Gang10-136Discussion on Air Cooling Measures during the Shaft Construction in Bangladesh Coal MnieLAN Gui-zhi13-157On Audit Work of Clear Production in Coal EnterprisesLI Dao-meng16-178Control and Mechanism Analysis of Downglide of Scraper Conveyor in Fully Mechanized Mining FaceWANG Qi-yang17-199Automatic Monitoring System for Coal Cleaning Using Air Dense-Medium Fluid BedWANG Zhi-zhong21-2310Construction Method of Large Shuttering Consolidated by Built-up Steel Shuttering for Shaft TowerZHANG Yu-dong, JIN Xiao-wei, HU Ji-ke25-2611Application of PLC in Automatic Control for Operating System at Auxiliary Shaft MouthYU Ling, LI Yun-ping27-2912Processing Technology of Twist Segment of Isostrong Bolt BodyJIA Yu, CHEN Nian-hua29-3013Scraper Transform of Disk Vacuum FilterTAO Ke-fei, MENG Fan-lian, FU Yang-quan31-3214Application of New Technology in Corridor Engineering of BeltWANG Zong-xiang, MI Jian-zhong, ZHU Xin-ying32-3315Prevention and Slabbing mechanism of Seam during Support Advancing in Fully Mechanized Caving Mining FaceYU Xiang-jun36-3816Ending Method for Descending Mining of Longwall Face Along the Strike in "Three Soft" Coal Seam with Heavy Dip AngleHAN De-ming, WANG De-yi40-4117Discussion on the Acccident of Rock Burst in Sanhejian Coal MineHU Ling-fang, ZHENG Yong, LI Jian-wei43-4518Analysis of Contraflow Forming Condition and Gas Flooding Law in Outburst Coal SeamDONG Gang-feng, LIANG Yun-pei46-4819On the Cost Control of EnterprisesZHOU Hui-sheng51-5320Development Tendency and Importance of Work Quota Management in the Coal IndustryCHENG Guo-zhen53-54 