1Test and Analysis of Deep Stress Field in Qishan Coal MineFAN Yin-hui, SUN Xiao-ming, XIA Shu-gui1-32Shaft Wall Fracture Treatment with Controlled Grouting to Consolidate StrataBAI Kai-sheng6-73Pressure Release Technology Used in Deep Upward Mining in Jiahe Coal MineYANG Shan-chong, FAN Yin-hui8-104Study on Support Design for Rail Connection Laneways in Qishan Coal MineWANG Xiang-yang, GUO Zhi-biao10-115Exploration on Ways to Distribute Pension in Xuzhou Mine GroupMA Fu-lin14-166Analysis of Steep Diagonal Fully Machanized Mining FaceJIA De-feng18-207Exploration on the Keys to Clean Production in Coal MinesLI Ping-juan20-218Cyclic Utilization of Water Resources in Pangzhuang Coal Mine AreaWU Jie25-279Dividing Lines and Water Related Characteristics of Cenozoic Strata in Dingji FieldZHANG Jin30-3210Research on Tax Related Plans in Coal EnterprisesGONG Yan34-3511Automatic Batching System Design Based on Programmable ControllerHAO Rang, YAN Cheng-feng38-4012Support Technology for Deep Steep Water-bearing Roadways with Big Cross-sectionYU Jia-xin40-4213Heat Treatment Technology for Cast Trough SteelJIAO Qiu-chuan42-4414Application of Bolt-mesh-shotcrete and Bolt Cable Support Technology in Huashengrong Coal MineSUN Li-ya46-47,4915Improvement on the Drive Gear of DSJ Belt ConveyorsSUN Xian-xu, GUO Qin50-5116Safe Mining of Close Seams above Goaf Based on Key LayersLIU Li-guo, ZHAI Zhi-qiang, HE Jie51-5417MapInfo with MSPS System Applied in Mining under StructuresYOU Ya, ZHU Wei-guo63-6518Comprehensive supporting practice of fracture water-weakened roadway in softrock massXU Xing-liang, ZHANG Nong, BI Shan-jun65-6819Ice Cooling System Applied in Liangbei Coal MineWANG Fu-fei, SU Yan-tao, LU Shao-hua69-7120Anti-burst for High Pressure Abradant Jet Slot Cutting Used in Daping MineZHANG An-sheng, LI Bao-yu, LU Wei-lin82-83 