1@@前插12Optimization Study on Mixing Ratio of Grout for Deep Rock Mass in Jiulong Coal MineYANG Ren-shu, XUE Hua-jun, LI Tao-tao, HE Tian-yu, GUO Dong-ming, ZHANG Yan-qiuDesign and Technology1-43Discussion on Freezing Hole Arrangement Mode of Deep AlluviumLI Gong-zhou, CHEN Dao-chongDesign and Technology5-74Design on Coal Mine LadderwayZHAO Da-pengDesign and Technology8-10,145Design Mode and Practice of 10Mt Capacity Coal MineWANG Chang-you, GONG Shou-cai, ZHENG Zhong-you, LIU Qing-baoDesign and Technology11-146Construction Scheme Design of Negative Pressure Ventilation System for Second-Stage Project of One-Entrance Mine in Xinji No.1 Coal MineWANG JunDesign and Technology15-17,217Reasonable Width Optimization of Narrow Coal Pillar in Roadway Driven Along Goaf of Fully Mechanized Caving FaceSHUANG Hai-qing, WANG Hong-sheng, LI Shu-gang, ZHANG Xin-zhi, WU Lin-zi, DONG Yong-jianDesign and Technology18-218Working Resistance Determination of Chock Support for Main Equipment Remove Gateway in Fully Mechanized Mining FaceGAO Deng-yun, MA Jing-poDesign and Technology22-249Design on Remote Monitoring System of Air Compressor Unit Based on OPC and LabVIEWLIU Yue, YUAN Wen-qi, LI Dong, HE Kai, DU HuiDesign and Technology25-2710Discussion on Design, Construction and Maintenance of Steel Truss for Trestle BridgeZHAO Zhong-yiDesign and Technology28-30,3311Stress Analysis of Large Diameter Concrete Circular Thickener Under Temperature EffectLI Hong-yiDesign and Technology31-3312Safe and Rapid Construction Technology in Deep Alluvium Freezing SectionWEI Guo-qiang, CHEN Zhang-qingConstruction Technology34-36,4013Research on Roadway Support Technology Under Goaf of Close Coal SeamZHANG Zhong-wen, WU Ji-nan, FAN Ming-jian, GAO Fu-quan, ZHANG Li-haiConstruction Technology37-4014Grouting Water Sealing Technology for Mine Shaft Sinking Through Water Bearing GoafCUI Yong-hongConstruction Technology41-43,4615Reinforcement of Advance Support in Mining Roadways of Three-Soft Coal SeamLU Qian-ming, PENG Hai-feng, DONG Guan-jie, HUAI Yan-senConstruction Technology44-4616Application of Driving-Bolting Integration Technology in Wanli No.1 Coal MineREN Shui-quanConstruction Technology47-4917Influence of Decoupling Charge Coefficient on Roadway Smooth BlastingCHEN Ya-yu, CHEN Zhi-binConstruction Technology50-5218Study on Operation Rate of 8101 High Cutting Fully Mechanized Mining Face in Wangzhuang Coal MineSONG Gao-feng, Kong De-zhong, Du Qiu-hao, LIU Dong-dongProduction Technology53-5519Influence of Roadway Confining Pressure Distribution Law on Sealing Quality of Bedding DrillingsXUE Ming-li, CEN Pei-shan, CHENG Hong-liang, YUAN Zhi-liang, LIU SongProduction Technology56-5820Mine Pressure Observation and Analysis on Surrounding Rock Stress of Retained Roadway in BackfillSHI Yun-bao, YANG Chao, NING Dong-xingProduction Technology59-60,63 