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    Characteristics of coal physicochemical structure and its effect on thermodynamic of gas adsorption
    LI Xiaowen, MA Xu, ZHU Pengfei, LIU Xinxin, LI Qingzhao
    2021, 52(3): 1-8.
    Abstract
    Permeability enhancement test of staged hydraulic fracturing of bedding drilling borehole in working face
    YAO Zhuangzhuang, LIN Fujin, WU Wenbin, JIANG Wangang, YAN Wenxue, YANG Liang
    2021, 52(3): 9-13.
    Abstract
    Formation mechanism of proppant particle voidage distribution in hydraulic fracturing fractures
    GUAN Shuwen, HU Shengyong, ZHANG Xitu, FENG Guorui, LI Guofu, CHEN Yunbo
    2021, 52(3): 14-18,21.
    Abstract
    Experimental study on effect of pore pressure and temperature on nitrogen flow in coal rock
    YAO Guanlin, TANG Mingyun, ZHENG Pengxian, DUAN Sanzhuang, ZHANG Hailu
    2021, 52(3): 19-24.
    Abstract
    Directional difference characteristics of resistivity response of tectonic coal in process of load-bearing failure
    YANG Yunlin, ZHANG Shuyong, LI Jialong, CHAI Yong, MAO Xiaoyi, CHEN Deren
    2021, 52(3): 25-29.
    Abstract
    Evolution law of water-conducting fault zone in large mining height working face under sandstone aquifer of Luohe Formation
    YANG Yuliang, XU Zhuhe
    2021, 52(3): 30-35,42.
    Abstract
    Study on reasonable offset of mining roadway under close distance coal seams goaf of rock burst mine
    DING Guoli, YU Huihua, SU Shijie, SHI Chaohong, LIU Chenyang
    2021, 52(3): 36-42.
    Abstract
    Research on extension law of grouting induced splitting fractures in materials similar to coal rocks containing different prefabricated fractures
    HUANG Xiaosheng, ZHANG Chao, CHENG Cheng, ZHAO Yajie
    2021, 52(3): 43-48.
    Abstract
    Deformation and failure rules of underlying roadway of cross mining in ultra-thinness coal seam
    SONG Kanglei, WANG Hongtu, WAN Liangliang, SHU Cai
    2021, 52(3): 49-54.
    Abstract
    Research and application of a new type of weatherproof spraying material for bed plate roadway
    ZHAO Bin, WANG Pengwei
    2021, 52(3): 55-60.
    Abstract
    Study on reasonable width of coal pillar in retracement channel under goaf edge
    SUN Qiang, FENG Guorui, GUO Jun, WANG Pengfei, QIAN Ruipeng, LI Songyu, WEN Xiaoze
    2021, 52(3): 61-67.
    Abstract
    Simulation study on artificial rock formation of deep coal seam roof sandstone
    ZHAO Yang, ZHAO Shankun, ZHANG Ningbo, WANG Yin, LI Yunpeng, SU Zhenguo, QIN Kai, ZHAO Bin
    2021, 52(3): 68-74.
    Abstract
    Fracture mechanism of acid fracturing of sandstones gangue layer in fully mechanized mining face
    DENG Guangzhe, LIU Hua
    2021, 52(3): 75-83.
    Abstract
    Dynamic characteristics and constitutive model of coal rock under impact loading
    ZHANG Jiafan, ZHOU Feiwen, ZHOU Hongwen
    2021, 52(3): 84-89.
    Abstract
    Advanced weakening technology of directional long borehole staged hydraulic fracturing
    LIU Yingming
    2021, 52(3): 90-95,100.
    Abstract
    Comprehensive treatment technology of scale in Fowa pump station of Xinjing Coal Mine
    BAI Xue
    2021, 52(3): 96-100.
    Abstract
    Application of ultra-low concentration multi-component modified guar gum fracturing fluid in coalbed methane wells
    BAO Xing, CHANG Jianzhong, XIANG Xinghua, ZHAI Zhiwei, JI Changjiang
    2021, 52(3): 101-105.
    Abstract
    Prevention and control of low oxygen and high carbon monoxide in shallow buried depth easy spontaneous combustion coal seam working face
    LIU Liren
    2021, 52(3): 106-111.
    Abstract
    Technology of grouting to extinguish fire in shallow buried depth and easy spontaneous combustion coal seam fire area
    DAI Mingying
    2021, 52(3): 112-116,121.
    Abstract
    Multi-inducement large-scale fire control key technology in Baoding Huashan Mine
    HE Yanyuan, LONG Chuanfu, YU Guisheng, YANG Ping
    2021, 52(3): 117-121.
    Abstract
    Application of large flow gasous CO2 fire control technology in control of spontaneous combustion fire in goaf
    ZHAO Meicheng
    2021, 52(3): 122-126.
    Abstract
    Support design and mine pressure measurement of 1102 working face in Qiuji Coal Mine
    YUN Ming, ZHENG Hongyun, LI Tingchun, ZHAO Renle, WU Shanyuan, ZHU Qingwen
    2021, 52(3): 127-132,136.
    Abstract
    A redundant monitoring system for monitoring substation of coal mine power supply
    FANG Chongquan
    2021, 52(3): 133-136.
    Abstract
    Research and application of gas drainage measurement and monitoring system in surface wells
    XU Rui, SUN Dongling, WANG Xinkun, LI Siqian, LI Jian
    2021, 52(3): 137-142.
    Abstract
    Optimization of gas chamber design of mine-used catalytic methane sensor based on CFD
    GU Renyong, JIANG Ze
    2021, 52(3): 143-147.
    Abstract
    Technology and equipment of preventing gas overrun in drilling operation of outburst coal seam
    HAO Dian, LI Xuechen, WEI Peijin
    2021, 52(3): 148-151.
    Abstract
    Casing milling and fishing technology of directional borehole in mudstone formation in underground coal mine
    GUAN Qiangsheng
    2021, 52(3): 152-155.
    Abstract
    Optical refraction detection method for emulsion concentration
    LUO Tienan
    2021, 52(3): 156-158,164.
    Abstract
    Development and application of examination system for gas drainage hole along coal seam
    CHEN Rui
    2021, 52(3): 159-164.
    Abstract
    Geological structure advance detection system in high-gas mining area
    WEN Hengcong, LI Xuechen, LIU Baobao, YANG Haitao
    2021, 52(3): 165-169.
    Abstract
    A wireless program upgrade method for mine personnel portable equipment
    CHEN Xian, JIN Yeyong, CHEN Kang
    2021, 52(3): 170-174.
    Abstract
    Research on coal-rock interface recognition method based on returned slag image of borehole
    LI Yanming
    2021, 52(3): 175-179.
    Abstract
    Micro-seismic monitoring substation based on precision clock synchronization technology
    AN Sai
    2021, 52(3): 180-184.
    Abstract
    Key technology of WPZ-45/700LY coal mine remote control roadway repair machine
    LI Xutao, ZHANG Ning, LI Wangnian
    2021, 52(3): 185-189.
    Abstract
    Review on research theory and methods of pore distribution characteristics of coal
    CHEN Yupeng, JIANG Wenzhong, QIN Yujin, SU Weiwei
    2021, 52(3): 190-196.
    Abstract
    Research progress of coal mine fire prevention and control technology by CO2
    ZHU Jianfang, GENG Yao, LI Dongming, JIAO Yanjin, LIANG Qian
    2021, 52(3): 197-203.
    Abstract
    Analysis of groundwater dynamic characteristics and hydrogeological model of karst under concealed conditions
    GAO Yuhang, XU Guangquan, DANG Baoquan, ZHANG Haitao, CHEN Guojun, SUN Gui
    2021, 52(3): 204-210.
    Abstract
    Numerical simulation of effect of nitrogen injection on gas explosion hazard in goaf
    LI Yunzhuo, SU Hetao, JI Huaijun
    2021, 52(3): 211-216.
    Abstract
    Analysis on oxidative intermediate functional groups for CO formation during spontaneous combustion of low metamorphic coal
    SUN Weili, SHI Jilin, ZHANG Haiyang, ZHAO Yaming, WANG Kun, CHEN Qingfeng
    2021, 52(3): 217-221.
    Abstract
    Analysis of deformation and failure process of rock slope induced by repeated mining of coal under high and steep mountain
    TIAN Yanzhe
    2021, 52(3): 222-227.
    Abstract
    Optimization design and application of working face in high inclined three-soft unstable coal seam
    ZHANG Fange, CHEN Yucun, ZHANG Liuyu
    2021, 52(3): 228-233.
    Abstract
    Study on mechanism of slope disaster in inner dump in Yimin Open-pit Mine
    LIU Jianguo, WANG Xingtao, SI Guobin
    2021, 52(3): 234-236.
    Abstract
    Analysis of Anjialing Open-pit Mine working face crossing collapse column scheme
    WANG Sheng
    2021, 52(3): 237-240.
    Abstract
    LI Xiangchun, GUO Fanfan, DONG Chen, NIE Baisheng
    2021, 52(3): 241-245.
    Abstract
    Application of acceptable risk theory in coal mine safety field
    DUAN Zhengxiao, TAN Qinwen, LU Kunlun, DENG Yin, WEN Xuan
    2021, 52(3): 246-251.
    Abstract
    Research on evaluation of behavior safety level of miners based on cloud matter element theory
    BAI Yanlong, CHEN Yu, LI Haili, BAI Changjiang, XI Long, XUE Yubi, PENG Jiajia, WANG Xin
    2021, 52(3): 252-256.
    Abstract

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