1Key technology and development trend of intelligent shaft sinking in complex geological conditionsLIU Zhiqiang, SONG Zhaoyang, CHENG Shouye, JING Guoye, CUI Zesheng1-72CSAMT applied to detect roof watery of high depth seamTU Qi, KONG Dexi, DU Mingze, BIAN Yun, WANG Donghao8-123Sliding mechanism and prevention measures of north high wall in Haizhou Open Pit MineLIU Yelong, CHEN Yongsheng, FU Fanghua, FENG Hongliang, LIU Jiashun13-174Development and application of grouting technology to prevention and control of ordovician limestone water disaster in north ChinaYANG Xue, TIAN Le, DENG Yun, AN Xuliang18-225Reinforcement technology of strip foundation under soft model wall applied to reused engineering of gateway retained along goafLI Jianfeng, LI Pengfei23-27,126Application of visual programming modeling technology to ground freezing technology of contact channel in metro systemGUO Zhonghua28-317Intelligent ventilation system applied in Selian No.2 MineHAN Baoyin, SU Jingxiang, XUE Juyun32-35,318Study on assembling technique and launching key technology of full-face shaft boring machineMA Minggang, PAN Yueliang, LAN Baojie, WANG Xiaolong36-42,949Design on supervisory control system of mine belt conveyor based on MCGSGONG Bin43-46,5510Study on intelligent management system of"four in one"safety production standardizationHU Jianfeng47-49,6311Design and practices on regional outburst prevention measures of driving face in mine air intake gatewaySI Yitong50-5512Study on the plastic deterioration characteristics of surrounding rock of grouting curtain for kilometric blind shaftZHOU Yuliang, HE Wen, XIANG Junxing, YANG Xue56-6313Study on aggregate grading optimization of high density coal refuse cemented backfill materialTENG Deqiang64-7214Analysis on freezing effect under deflection action of freezing pipeSUN Qinshuai73-7615Performance analysis on"buffer layer+steel pipe concrete support"based on idea of flexible first and rigid secondLUO Xiaogang, ZHANG Deqi, LI Hui, WANG Yueqi, SHANG Xinyan77-8116Study on modular automatic grouting stationYANG Ming, AN Xuliang, CHEN Jun, SHAO Gongyu82-87,7617Study on mechanized construction equipment and matching for large cross section ultra deep shaftLI Ruike, HE Lei, MA Weiqing, CUI Xiwang88-94 