1Method of underground integrated automatic and accurate determination of coalbed gas contentZHOU Fubao, KANG Jianhong, WANG Youpai, ZHANG Ran2873-28822Ecological restoration effect and carbon neutrality contribution of biological soil crusts in western mining areaBI Yinli, GUO Yun, LIU Feng, LI Puning, PENG Suping2883-28953Pressure relief effect of protective layer mining and its optical fiber monitoringCHAI Jing, LIU Yongliang, WANG Zixü, LEI Wulin, ZHANG Dingding, OUYANG Yibo, SUN Kai, WENG Mingyue, ZHANG Youzhi, DING Guoli, ZHENG Zhongyou, ZHANG Yin, HAN Gang2896-29064Multi parameter monitoring technology of borehole for movement and deformation of overlying strata of coal measuresZHANG Pingsong, SUN Binyang, XU Shiang, WU Rongxin, FU Maoru, GAN Shengfeng, LIU Chang2907-29225Research progress of DFOS in safety mining monitoring of minesCHENG Gang, WANG Zhenxue, SHI Bin, ZHU Honghu, LI Gangqiang, ZHANG Pingsong, WEI Guangqing2923-29496Structure packaging optimization and application of FBG dynamometry bolts based on the orthogonal test designLIANG Minfu, FANG Xinqiu, CHEN Ningning, WU Gang, XUE Xiaomei, SONG Yang, ZHANG Fan2950-29607Principle and key technology of dynamic detection of coal-rock interface in coal mine based on air-coupled radarXU Xianlei, PENG Suping, MA Zheng, ZHU Pengqiao, WANG Yidan2961-29778Time-frequency domain polarization analysis of seismic waves in the whole space of mine and its experimental studyWANG Bo, ZENG Linfeng, ZHANG Yan, LIU Shengdong, ZHANG Jun, CHEN Hongyun2978-29849Quantitative response characteristics of transmitted in-seam channel wave in coal seam with faultsWANG Baoli, JIN Dan, ZHANG Huanlan, CHENG Jianyuan2985-299110Interpretation method of coal seam thickness based on dispersion characteristics of Love channel wavesLU Tuo, HOU Enke, NIU Chao, REN Dengjun, ZHANG Bo2992-300011Microseismic monitoring on limestone water inrush at coal seam floor for group A coal layer of Pan'er Coal MineZHA Huasheng, ZHANG Haijiang, LIAN Huiqing, QIAN Jiawei, WEI Tingshuang, TANG Zhongyi, MEI Huan, CHENG Tingting3001-301412Research on forward modeling of"triangular cone"type direct current method for heading detectionZHOU Guanqun, WANG Yafei, CHEN Xinghai, YUE Mingxin, ZHAI Fuqin, YANG Xiaodong, WU Xiaoping, CAO Yu, CUI Ying3015-302313Numerical simulation and exploration test for water from the floor strata of coal-mining face using dual-frequency induced polarization methodHU Xiongwu, XU Biao, ZHANG Pingsong, WU Rongxin, FU Maoru, CHENG Lin3024-303614Energy evolution law and differential energy instability model of coal-rock combined bodyZUO Jianping, SONG Hongqiang3037-305115Experimental study and engineering application of jacking retractable concrete-filled steel tubular columnWANG Jun, YANG Guang, HUANG Wanpeng, ZHANG Tao, XING Luyi3052-306816Tensile fracture mechanism of rock mass induced by the unloading-seeping of confining pressure in deep coal miningLI Chunyuan, CUI Chunyang, LEI Guorong, ZUO Jianping, YU Xiang, HE Tuan, LI Xiangshang, DU Weisheng3069-308217Calculation method of separated water accumulation in the process of separated water inrush and its forecast:Taking the water inrush at 1304 working face of Zhaoxian Coal Mine in Shaanxi Province as an exampleXU Jinpeng, ZHOU Yu, PU Zaohong, PANG Siyuan3083-309018Advanced drainage technology based on multi-objective constraint of mine safety and water resources protectionZENG Yifan, MENG Shihao, Lü Yang, WU Qiang, HUA Zhaolai, YU Chao, PANG Kai, CHENG Yi3091-310019Regulation mechanism of ionic surfactant on the wettability of low rank coalWANG Chengyong, XING Yaowen, XIA Yangchao, ZHANG Rui, WANG Shiwei, LI Jihui, GUI Xiahui3101-310720Key technology and practice of directional drilling for gas drainage in all the mining time and space in underground coal mineLI Quanxin, XU Chao, LIU Jianlin, FANG Jun, ZHANG Jie, LIU Fei3108-3116 