1Deformation observation and analysis of coal mine industrial square and shaft in Juye mining areaLI Zhishen, WANG Wenke, ZHU Yousheng, FU Changke, KUANG Lianfei1-72Multi-process drilling technology applied to vertical backfilling holesZHANG Jiefeng, DONG Kaifei, CHEN Yue, WANG Shaomin8-143Adjustable reinforcement technology of ultra-high voltage power supply tower applied to coal mining under buildings,railways and water bodiesBAI Guangchao, ZHANG Facai15-19,144Audio-frequency electrical perspective method applied to detection on roof watery in coal mining faceKONG Dexi, DU Mingze20-255Collapse prevention technology of surrounding rock in tunneling construction of open-type TBMXU Xiangli, LIU Changchun, REN Dayong, LI Ming, SUN Xingchen26-29,516TBM passing through construction technology of mine inclined shaft transition section in Kekegai MineNIU Bin, LIU Quanhui, CHEN Wei, TIAN Qinglong, XU Yichuan30-347Research on guide control technology of full-section shaft boring machineYAN Liangping, ZHANG Jinyu, PAN Yueliang, HAN Yangyang35-408Feasibility study on -50 ℃ deep cold freezing technology applied to urban underground spaceGAO Wei41-459Liquid nitrogen freezing technology with ultra larger spacing between holes applied to rail transit design and constructionLIU Dongqi46-5110Study on strength influence factors of paste backfill material based on response surface methodXU Yangqing, QIAO Longteng, YUAN Dongfeng, SUN Di52-57,7211Analysis on compressive strength of concrete with rice hull ash and basalt fiberSU Yongqiang, PANG Jianyong58-6112Study on damage evaluation of high-temperature curing high-strength concrete based on analytic hierarchy processGAN Binlin, YIN Jun, FENG Xuhai62-6713Study on fracture tectonic features of Qi'nan MinefieldYAN Qi68-7214Analysis on numerical calculation of thawing temperature field in freezing wall of No.2 Air return ventilation shaft in Dingji MineSUN Shiyuan, SHEN Renwei, ZHANG Gui, YAO Zhishu, WANG Xiaojian, FANG HAO73-7715Analysis on borehole deflection in cross passage effected to freezing wallFENG Lihua, ZHANG Fei, GE Liang, REN Quanjun, LIU Wei, ZHOU Xiaomin78-8416Technical analysis on grouting reinforcement construction of skip loading chamberWANG Yuan85-8917Filter element strength test technology and device of hydraulic support electro-hydraulic control systemZHANG Yue90-94 