1Development and Application on Equipment to Reduce Mine Water Hardness with Lime MethodXIAO Yan, ZHOU Ru-lu, GUO Zhong-quanHigh and New Technology of CCTI1-32Automatic Sludge Discharge Technology for Mine Water Purification TreatmentZHU Liu-shengHigh and New Technology of CCTI4-63Industrial Trial of Environment Protection Concentrated Hydraulic Fluid in Electric-Hydraulic Control SystemWANG Yu-chao, SHEN Dong, HAN YongHigh and New Technology of CCTI7-104Discussion on Technology Mode for Mine Underground Backfilled and Water Keeping MiningPAN Wei-dong, JI Wen-boMining and Underground Engineering11-13,175Reinforced Technology for High Roof Falling Area in Structure Broken Zone of Mining Gateway of Dongpang MineDU Shi-boMining and Underground Engineering14-176Application of Deformable and Yield Bolt to Deep Mining Gateway of Huxi MineHU Chuan-ting, GUO Ai-min, QIAO Li-xue, LI Guo-en, WU Cheng-hongMining and Underground Engineering18-20,237Application of High Water Content and Quick Setting Material to Ultra High Roof Failing Control of Mine GatewayNING Shuai, FENG Guang-ming, NIU Jian-chun, LI Jian-hui, ZHOU Zhen, WANG Cheng-zhenMining and Underground Engineering21-238Determination on Fracture Condition of Key Stratum Above Full Thick Seam Mining FaceLI Wei-dong, WANG Zhi-qiang, GAO Yang, ZHANG Li-mingMining and Underground Engineering24-279Discussion on Key Technology of Upward Mining for Top Coal Caving Mining in Jining No. 3 Coal MineWU Xiang-qianMining and Underground Engineering28-31,3510Test on Micro-seismic Features During Swelling and Cracking Failure Procedure of Coal and RockDING Xue-long, WANG En-yuan, JIA Ying-mei, LING Li, Yang Dao-weiMining and Underground Engineering32-3511Optimization of Construction Design for Surface Pre-grouting Project of Mine Shaft in Yangcun MineLI Fang-wen, ZHAO Jiu-liangMining and Underground Engineering36-37,5612Status Analysis on Rescue Technology and Equipment for Personnel in Difficult in Underground MineZHA Pu-sheng, HU Jun-fenSafety Technoloy and Engineering38-41,4513Test and Study on Air Transfusion Law in Loose Coal MassWU Guo-guang, ZHANG Yong-jian, WANG Guang-you, XU Hong-feng, MENG Xian-liangSafety Technoloy and Engineering42-4514Application of Wall Drilling High Efficient Cut off and Drainage Gas Technology to Sihe Coal MineTIAN Fuc-hao, WANG Zhao-feng, XU Yu-sheng, TIAN Kun-yun, HAO Cong-naSafety Technoloy and Engineering46-4815Research on Numerical Simulation of Coal and Gas Outburst Features in Deep MineZHANG Chun-hua, LIU Ze-gong, LI Yao-bin, LI Lian-chong, ZHU Xing-huSafety Technoloy and Engineering49-5216Study on Mining Technology of Protective Layer Under Long Distance in Pingdingshan Mining AreaXIONG Zu-qiang, LI Hua-min, WANG WenSafety Technoloy and Engineering53-5617Safety Performance Analysis and Control Measures of Underground Mine BatteryWANG Lei, CHEN Jie, XIAO Rui-ling, WU Zhao-hongMachinery Electric and Automatization57-6018Selection of Braking Alternative for Long Distance High Power Downward Belt ConveyorBAI XiaoMachinery Electric and Automatization61-63,6619Analysis on Drilling Rod Vibration Mode of Coalfield Geological Exploration Based on ANSYSZHANG Juc-huan, DUAN Long-chen, WANG Hong-boMachinery Electric and Automatization64-6620Analysis and Countermeasures of Input Shaft Breaking for Gearbox of Mine Belt ConveyorWANG WeiMachinery Electric and Automatization67-69 