1Case study on directional grouting technology for dynamic water sealing in deep high-confined water roadwaysGAO Xiaogeng1-72Research on the application of large diameter drainage hole piling technology in minefieldLI Bin, ZHANG Yueheng, LIU Qingdong, DONG Zhenguo8-153Research on nitrogen injection fire prevention technology in goaf of fully mechanized top coal caving face in spontaneous combustion coal seam of Zhuxianzhuang MineYANG Zequan16-214BIM technology's comprehensive application in the construction phase of the ore-pass fragmenting system chamberHE Lei, WU Chenxu, CHEN Kunfu22-285Parameter design and engineering application of roadways support for deep shaft roadway based on the limit equilibrium theoryLIU Li29-386Research on the treatment technology for large heaving deformation in working face for vertical shaft at Xianglushan tunnelXU Huibin, CHEN Zhenguo, ZHANG Chu, CHEN Jun, YANG Xue39-447Research on roadway support and reinforcement technology in weak rock strataYANG Ming45-48,388Research on directional drilling technology for reverse shaft pilot holes in deep vertical shaftsLIU Wenjing, ZHANG Xueliang, HAO Haojie49-53,219Study on vibration reduction technology of tunnel blasting passing through crude oil pipeline at short distanceLIN Shusen, NING Fangduan, SUN Mengyang, ZHANG Xiantang54-60,2810Research on coal-rock interface identification technology based on measurement-while-drilling vibration signalsLI Heng, SUN Xiaoyu61-6511Research on roadway section coding and design process based on BIM technologyWEN Xingxing, HE Lihui, LIU Yuanyuan, YANG Fan, CHEN Lei, WANG Haibin, ZHENG Yuan, ZHANG Liyu66-7112Experiment on comprehensive geophysical prospecting in hole in effect inspection of surface pre-grouting in the shaftDENG Yun72-77,7113Simulation experimental study on grouting reinforcement layers of surrounding rock in tunnel crossing fault fracture zoneXIE Fuxing78-8314Preparation of materials in the annular space of freezing holes and microscopic research under freeze-thaw conditionsSUN Mingrui, CHENG Hua, LI Ziqing, XUE Weipei, QI Yanqiu, WANG Xiaoyun, GUO Longhui, ZHANG Zhiwei84-9215Research on the mix design and anti blocking performance of double-layer permeable concreteSUN Kelong, YUAN Wenhua, ZHAI Haoran93-9916Experimental study on mechanical properties of immersed coal bodyWANG Sulong, SUN Di100-104,8317Selection of reasonable indicators for evaluating the stability of deep soft rock roadway surrounding rocksZHANG Jiawei, QIAN Haocheng, LI Jindou, FAN Kun, WU Deyi105-110,92 