1Numerical Simulation of Plastic Zone around Dense Boreholes Varying with Mechanical Strength of Coal BodyYI Li-jun, YU Qi-xiangTest and Research1-3,72Experimental Study of Using Inert Gas to Suppress Mine Gas ExplosionWANG Hua, GE Ling-mei, DENG JunTest and Research4-73Study on Distribution Regularity of Impact Pressure of High-pressure Water JetLIN Fu-jin, XIA Yong-jun, ZHOU Wei-dongTest and Research8-9,124Experimental Study on Influence of Pore Gas Pressure upon Gas Permeability of Coal SeamLONG Qing-ming, ZHAO Xu-sheng, MOU Jing-shanTest and Research10-125Determination 0f Rational Width of Fully Mechanized Caving Face in Single Gassy Thick Seam according to Gas DrainageMA Jian-hong, LI Xiao-junTest and Research13-14,176Development of Expert System Software for KJC-A Mine Rescue Command CarWANG Zheng-hui, YANG Juan, YAO Cheng-linTest and Research15-177Analytical Method for Strain on Extracting Seam Floor at Relatively Fixed Position and Its ApplicationZHU Shu-yun, JIANG Zhen-quan, HOU Hong-liangApplication Techniques18-208Optimum Design of Fully Mechanized Coal Face Cooling Based on ANSYSXIAO Lin-jing, XIAO Hong-bin, LI Zhen-huaApplication Techniques21-239Design of Coal Mine Safety Network Monitoring SystemHU Yong-jian, CHENG Xiao-huiApplication Techniques24-26,2910Ventilation System Optimization in Zhaogezhuang Coal MineZHU Kai, YANG Hua-yunApplication Techniques27-2911Cluster Discrimination of Water Bursting in Mine and Its ApplicationApplication Techniques30-3212Practice of Coal Mine Roadway Support of Mine under Condition d High-stress Soft RockSUN Guo-wen, CHEN Su-juanApplication Techniques33-3513Evaluation of Soil Pollution by Heavy Metals in Huainan Xinji Mining AreaLI Hong-wei, YAN Shi-long, CUI Long-pengApplication Techniques36-37,4614Coal and Gas Outburst Prevention in Drivage of Outburst Seam in Deep Mine Area with Complicated Geologic StructureHUANG Xu-chao, MENG Xian-zhengTechnical Experience38-4015Discussion and Analysis on Prevention and Control of Sandstone Roof Water in 6304 Fully Mechanized Caving Face of JiningNo.3 MineXING Tian-hai, WEl Wen-hui, ZHANG Li-qiangTechnical Experience41-4316Micro-seismic Monitoring of Movement of Surrounding Rock in Full Mechanized Caving Face of Very Thick SeamLIU JieTechnical Experience44-4617Observation and Analysis of Strata Pressure in Actual Mining Roadway of No.313 Working Face in Linsheng Coal MineWANG Tie-li, XU Zhen-liang, LIU He-nanTechnical Experience47-49,5118Application of Slipping Bar Hydraulic Support in "Three-soft" Coal SeamHOU Jin-qiang, HOU Bao-liangTechnical Experience50-5119Practice of Dip Oblique Mining Method for Steep Protective Coal SeamYUAN De-shuTechnical Experience52-5520Research on Water-ampol Stemming Technology for Mining and Excavation Face in Outburst Coal SeamLI Chen-wuTechnical Experience56-57 