1Evolution characteristics of reservoir parameters of drainage layer and adjacent layer in the process of gas drainageJIANG Cheng, LI Qixian, HAN EndeTest·Research1-72Experimental study on the influence of coal surface roughness on wettability of non-cationic surfactantsZHANG Kunyin, YAN Min, LI Shugang, WEI Jianing, ZHOU MingTest·Research8-153Influence of coal adsorption deformation on permeability evolution of three kinds of gasZHOU Yinbo, LI Xiaoli, LI Hansheng, WANG Jiale, MAO Shuxing, WANG ShijieTest·Research16-214Feasibility study on gas pressure measurement technology of coal seam without sealing holeCUI Yongjie, WANG Zhaofeng, FAN DaopengTest·Research22-275Mechanism of mercury migration under the influence of coal field fireWANG GangTest·Research28-31,376Experimental research and application of atomization effect of gas-water spray in underground coal mineMA WeiTest·Research32-377Hydrogeological conditions and feasibility study of underground water storage in Baorixile Mining AreaSUN Jiang, LI Yanfei, YANG Jian, ZHANG Xiyu, LIU JiTest·Research38-438Study on bedding effect of failure mode of raw coal under loadingWANG Hao, ZHAO Yaojiang, PAN Yuting, ZHAO Liang, WANG JiangtaoTest·Research44-489Experimental study on mechanical properties of Xiaojihan coal samples under plastic flowYOU Wenqiang, GUO Jingna, WANG GuanghuiTest·Research49-55,6210Mechanical response of coal rock mass with different proportions under true triaxial loadDONG HaoTest·Research56-6211Study on waveform duration characteristics of acoustic and electrical signals of coal damage under loadXIAO Yuzhe, QIU Liming, TIAN Xianghui, ZHOU Chao, LIU YangTest·Research63-6812Study on fractal dimension of coal pillar fracture in mining section of short-distance coal seamsHAN JinboTest·Research69-7613Explosion suppression and fire extinguishing technology in fully - mechanized top coal caving face of high gas and spontaneous combustion during stopping miningSHEN Xin, YAN Wanjun, HE Qilin, LI Jinliang, LU WeiApplication·Innovation77-81,8714Well-washing and stimulation technology of gas extraction wells based on sodium pyrophosphate solutionGUO LiangApplication·Innovation82-8715Water control and prevention technology for the underhand mining face beneath the water-rich bedrockDOU Fengjin, SHAO Dongliang, WANG FangtianApplication·Innovation88-9416Application of well-hole combined micro-seismic technique in working face monitoringYAN Wenchao, CUI Weixiong, DUAN Jianhua, CONG Lin, LIN DuiboApplication·Innovation95-9917Practice of accurate control technology for multi-branch horizontal grouting well trajectory of coal seam floor limestone reinforcement in Zhaogu No.1 MineLIU Xiugang, LI Junfeng, ZHANG Qiang, ZHANG JingApplication·Innovation100-10318Research and application of pre-stressed continuous surrounding rock control technologyWAN Feng, WANG Zhanling, ZHANG Hongqing, FAN Mingjian, YAN Shouqing, GUO GangyeApplication·Innovation104-10919Research on intelligent sensing method of gas disaster driven by edge computingBU Tengteng, QU Shijia, WU Fusheng, ZHANG Weiguo, HU RanDesign·Development110-11620Directional drilling technologies equipment and application for hard rock in underground coal minesDOU Xuqian, WANG LiDesign·Development117-122 