1Review and discussion on Liuzhaung Mine designFANG An-lu, YANG He-yu, WANG Zheng-ming, GAO Li-kui, ZHU Ruo-jun, ZHOU De-sheng1-32Optimization of upgrade reconstruction design for Duanwang MineFU Yi-jie4-53Optimized reconstruction of transportation system in mining block of Saimengteer MineGAO Yang, GAO Yun-zeng6-84Mine safety monitoring and measuring system of wireless network base on WIA and GPRSWANG Yong, YIN Zhi-xiang, DING Xiao, FAN Sheng8-105Design on wireless temperature monitoring and measuring system base on nRF24L0111-126Study on stability of building foundation above mining goaf and technical countermeasuresHU Bing-nan13-157Present status and future development tendency of China coal preparation industryLIU Wen-xin16-188Design on tunnel reinforcement of sihe coal preparation plantXI Zhi-rong18-209Comments on design of loading pileYANG Jun, ZHANG Bo-lin, CHONG Yan21-2210Optimization of bolt support design for complex roofDUAN Hong-min23-2411Application of curtain grouting technology to water sealing project in Fengji Guoyuan MineJIANG ZHong-le, SUN Bing25-27,3112Comparison analysis on pre-grouting experiment plan of high pressurized ultra large aquifer for coal mining face in shaft mineWANG Dang-Liang, DU Wei-Dong, DONG Xin-feng28-3113Research on sectional interval time of mine millisecond delay electric capTU Jian-shan32-3314Water prevention measures and water leakage control in Hangzhou Hongpu Road Metro StationPAN Pei-jun, XIE Ming-xiang, WANG Zhi-hong, YANG Zhong-po, CAI Yong-yuan34-3615Numerical simulation on effect of foundation pier in support of soft rock inclined shaft in Gaojialiang MineSUN Yu-hui, TAO Lian-jin, WANG Wen-pei37-3916Analysis,treatment and prevention of tension cracking for site pre-made T type beam of Qiaojiata BridgeAI Shi-bo40-4217Analysis on high loess slope deformation of industrial park in Shuiliandong MineJIANG Hai-bo, LU Yuan-qiang, ZHU Jian42-4518Study on surrounding rock control technology of open top space mining gateway in fully mechanized top coal caving mining face in ultra thick seamSONG Jin-wang46-4819Study on high level borehole gas drainage technology for coal mining face in below protected seam49-5120Study and practices on mining technology with face adjustment for high rank conventional coal mining faceMA Bao-tong, ZHANG Qing-guo, LIU Ji-jun52-54 