1Construction technology of hydrologic hole in frozen shaft pipe of soft rock stratum in west ChinaGAO Wei1-42Research on the restoration technology of frozen shaft wall in soft rock strata with water content in western mining areaZHANG Ming5-9,143Research and application of raise-boring construction technology for ventilation shaft in phosphate mineLI Junfeng10-144Design and construction of freezing reinforcement for cross passage under large buried depth and water rich stratumDONG Shizhuo, WANG Lei15-215Research on monitoring method of shaft deformation based on point cloud dataZHAO Qijun, LIU Zuyu, WANG Junchao, LIU Pengshan, JIN Bo, ZHONG Fengyue22-256Research on application of the gas phase cutting top pre cracking pressure relief technology for hard roofLIU Xiaofeng26-30,257Study on properties and application of coal seam composite water injection materials under inorganic salt coordinationZHANG Shuai31-37,218Experimental study on the three-dimensional expansion patterns of frost heave in artificially frozen cross passageWANG Lei38-439Mechanical properties test and microstructure analysis of shale ceramisite concreteZHAO Xinyue, MA Qinyong44-5010The influence of fly ash on the mechanical properties and durability of glass fiber-reinforced cement mortarWU Peng, CHEN Haiming, ZHANG Yadong, QIN Ziguang, CHEN Jie51-5511Analysis of sudden change of viscosity of drilling fluid by drilling method in cretaceous jurassic strataZHOU Wenlong, RONG Chuanxin, CHENG Hua, WANG Zongjin, YAO Zhishu56-6412Numerical simulation analysis of the stability of the surrounding rocks in the deep vertical shaft of the West Anshan Iron MineZHANG Shuo, MA Xinmin, LU Feixiang, LI Yangyang65-7113Numerical simulation analysis of stability of deep foundation pit adjacent to subway tunnelXU Yangqing, XIE Tengda, XIE Fuxing72-7714Research on the water yield property and hydrochemical characteristics of sandstone in the 11-2 coal floor of Liuzhuang Coal MineGAO Xiaoyun78-8315Research on reasonable setting width and support parameter optimization of coal pillar in thick coal seam sectionWANG Ying84-88,7116Research on accurate cost estimation of coal mine tunnel engineering based on BIM technologyLIU Rui89-94,83 