1Effect of Salt to Unconfined Compressive Strength of Frozen Silt Soil from the Yangtze River DeltaHU Xiang-dong, ZHANG Wei-chao, WANG Jin-tai, YU Xing-fu1-5,92Analysis on Major Hidden Disaster-Causing Geological Factors of Xigou MineFU Dong-ye6-93Operation of Working Face of Multi Super Thick Aquifers in Mine Shaft and Backfill GroutingZHAO Peng-peng10-12,364Comprehensive Control of Water Inflow from Mine Shaft Collar in Weathering ZoneHUANG Yong-qing, LI Shu-lei, FU Chang-peng13-155Study and Analysis on Blasting Lost and Blasting Fallen Phenomenon Based on Joule lawLYU Yu-zhi, YIN Bing, ZHAO Ming-yong16-186Compensated Support Technology of Key Location in Asymmetric Deformation of Local Weak Structure in Mine Soft Rock RoadwayMA Shou-long19-21,247Application of Hollow Grouting Anchor and Bolt to Pre-Bolting and Late Grouting Support System of Underground EngineeringDONG Qin-kai, SUN Jiu-guang, ZUO Hai-feng, JIANG Xiao22-248Study Status and Outlook on Ground Freezing Theory of Shield Break-In and OutHU Xiang-dong, YU Jin-zhu, WANG Shu-lei25-299Secondary Developed Function of AutoCAD Map Applied to Develop Ventilation Network Simulation System and ApplicationGONG Liang-wei, ZOU De-jun30-3310Experiment Study on Cement Grout Applied to Backfilling of Mine Shaft Boring LinerWANG Cui-ping, ZHANG Chao-chao34-3611Analysis on Blasting Operation in Surface Limestone Mine Affected to Mine Roadway Stability and Gas Emission in Underground Coal MineYAO Shang-wen37-40,5812Dynamic Analysis on Finite Element Structure of Protective Sealing Door Applied to Underground Mine Refuge ChamberLIU Zhi-sheng41-4313Design on Support System of MSJ5.8/1.6D Mode Mine Shaft Boring MachineTAN Hao, LIU Zhi-qiang, CHENG Shou-ye44-48,4314Optimized Design on Unloading Station of Mine Side Bottom Dumping CarWANG Xiao-dong49-51,2915Method Applied to Pseudo-Static Analysis on Slope Stability Features of Soft Top and Hard Bottom Stratum under Seismic Dynamic LoadLI Jing, WANG Ming-tao, LIU Cheng-yu, WU Bo52-58 