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    Influence of ambient temperature on explosion characteristics of premixed gas
    HUANG Zichao
    2021, 52(2): 1-6.
    Abstract
    Study on pore development characteristics of low rank coal reservoirs in Erlian Basin group
    LIU Jianhua, WANG Shengwei, SU Dongmei
    2021, 52(2): 7-12.
    Abstract
    Study on reasonable criterion of effective extraction radius based on desorption gas index
    SUN Xiaoming
    2021, 52(2): 13-17.
    Abstract
    Study on fractal characteristics of coal pore before and after oxidation treatment
    FENG Yulong, SI Qing, WANG Hao, LI Feng
    2021, 52(2): 18-22.
    Abstract
    Reconstruction and seepage simulation of coal and rock pore fracture structure based on CT imaging
    LIU Weifu, DING Xuhai, ZHOU Guang
    2021, 52(2): 23-27.
    Abstract
    Cooling law of liquid carbon dioxide on coal with different particle sizes
    LI Peng
    2021, 52(2): 28-32.
    Abstract
    Experimental study on change mechanism of coal and rock permeability under total stress and strain condition
    XUE Junhua, LI Yanhe, LI Hongbiao, YUAN Zhandong, ZHAN Keliang
    2021, 52(2): 33-37.
    Abstract
    Experimental study on optimal selection of CO absorbent for low metamorphism coal
    SUN Weili, SHI Jilin, ZHANG Haiyang, ZHAO Yaming, WANG Kun, CHEN Qingfeng
    2021, 52(2): 38-42.
    Abstract
    Effect of carbon dioxide on coal spontaneous combustion characteristics
    YE Qingshu
    2021, 52(2): 43-47.
    Abstract
    Experimental study on heat extraction of loose high temperature medium with heat conducting rod
    LIU Xin, REN Wanxing, SHI Jingtai
    2021, 52(2): 48-53.
    Abstract
    Experimental study on preventing slippage failure of resin bolt in coal roadway by backfilling with enlarged bottom
    NAN Hua, WANG Shuai, WANG Jinrui, LUO Ming
    2021, 52(2): 54-62.
    Abstract
    Influence of grout-filled flaws on strength properties and fracture modes of coal petrography
    ZHU Keren, DENG Chuan, LEI Ruide
    2021, 52(2): 63-70.
    Abstract
    Study on air leakage law and gas concentration distribution in goaf under U+L ventilation
    JIA Nan
    2021, 52(2): 71-77.
    Abstract
    Prevention and control technology of spontaneous combustion in mining face of closely inclined coal seam group
    CHEN Qingfeng
    2021, 52(2): 78-82.
    Abstract
    Comprehensive control technology of shaft fire area
    WANG Weidong
    2021, 52(2): 83-87.
    Abstract
    Optimization of coal seam permeability improvement technology by radial multi-branch borehole high pressure combined water jet
    FU Hui, KOU Jianxin, QIN Pei
    2021, 52(2): 88-92,97.
    Abstract
    Projective and positioning technology for spatial visualization borehole in underground coal mine
    HUANG Bing, LI Rongxin, ZHOU Songyuan
    2021, 52(2): 93-97.
    Abstract
    Preventing rock burst technology by roof cutting and roadway protection in mining along goaf roadway of dangerous area
    ZHANG Lei
    2021, 52(2): 98-104.
    Abstract
    Surrounding rock support technology of extra thick coal seam roadway under the influence of mining
    LYU Kun
    2021, 52(2): 105-112.
    Abstract
    Safety analysis and water prevention and control technology of coal mining under rivers in Tianzhu Coal Mine
    HUANG Hao, FANG Gang, LIANG Xiangyang, LIU Yang
    2021, 52(2): 113-120.
    Abstract
    Key technology and application of casing safety in large diameter well
    MO Haitao, HAO Shijun
    2021, 52(2): 121-125.
    Abstract
    Modular design of crossing boreholes drilling rig in underground coal mine
    WU Di, LIU Zhi, WANG Song
    2021, 52(2): 126-130.
    Abstract
    Parameter optimization of longitudinal swirl nozzle based on CFD
    ZHANG Zepeng, PAN Yue, YANG Fan, MA Hao
    2021, 52(2): 131-134.
    Abstract
    A quality and efficiency test system of calcium hydroxide for mine respirator
    ZHANG Weijie, ZHANG Zhichen, LIU Qiang
    2021, 52(2): 135-137,141.
    Abstract
    A mining-excavation relay compilation warning system based on GIS
    CHI Baosuo, WANG Qiang, GAO Bin
    2021, 52(2): 138-141.
    Abstract
    Design of intelligent terminal of mine inspection instrument based on STM32
    GUO Haoteng, WU Weili, MAO Hao, ZHAO Hongju
    2021, 52(2): 142-147.
    Abstract
    Multi-turn loop inductance of small loop transient electromagnetic method
    LIAN Chenguang, SHI Xianxin
    2021, 52(2): 148-152.
    Abstract
    Visualization technology of 2D mine map based on cloud rendering
    CUI Pengzhi, WANG Chong, SUN Ninghui, DI Yongchang, LI Zongwei
    2021, 52(2): 157-160.
    Abstract
    Negative pressure automatic water discharge device based on intrinsically safe DC electric valve
    WANG Zuxun
    2021, 52(2): 161-164.
    Abstract
    Safety control technology of coal mine based on image recognition
    ZHANG Liya
    2021, 52(2): 165-168.
    Abstract
    Development status and prospect of permeability enhancement technology in high gas low permeability coal seam
    ZHANG Xiaogang, JIANG Wenzhong, DU Feng
    2021, 52(2): 169-176.
    Abstract
    Temperature distribution and rise law of low metamorphic steady coal in fully mechanized caving face
    ZHANG Haiyang
    2021, 52(2): 177-181.
    Abstract
    Optimization numerical simulation of staggered distance scheme for double coal seam mining in Yushen Mining Area
    SUN Xueyang, LU Mingjiao, LI Cheng, MIAO Lintian
    2021, 52(2): 182-187,193.
    Abstract
    Study on improving initial recovery rate by deep hole pre-splitting blasting of hard roof
    SHEN Yuxu, KANG Tianhe, YANG Yongkang
    2021, 52(2): 188-193.
    Abstract
    Analysis of surrounding rock damage law of TBM tunneling roadway in coal mine jointed strata
    DAI Mai, TANG Bin, WANG Yong, WANG Xuesong, WANG Zhenhua
    2021, 52(2): 194-200.
    Abstract
    Simulation analysis of buffer energy absorption effect of pressure-relief coal
    LI Xiaoliang, GUO Weiyao, YIN Yanchun, XIAO Yaxun, TANG Xingxue
    2021, 52(2): 201-206.
    Abstract
    Mechanism and countermeasures of abandoned roadway collapse in three-roadway stope mining one side pillar
    HAN Shuyi, YANG Shuangsuo, BAI Yunlong, MA Jinmin, SHI Jinsong, HAN Junxiao, CHENG Lingyu
    2021, 52(2): 207-213.
    Abstract
    Study on effect of decoupling charge pre-splitting blasting under unidirectional load
    ZHANG Xuanshan, WANG Hailiang, SUN Zhongbo, TANG Zhongyi
    2021, 52(2): 214-218,224.
    Abstract
    Study on fracture evolution of surrounding roadway under close distance coal pillar
    LIU Hongin, LI Guodong, WANG Hongzhi
    2021, 52(2): 219-224.
    Abstract
    Study on stability of mining landslide in shallow coal seam based on numerical analysis
    LIU Maoqi, LIU Ping, ZHU Hengzhong, WANG Chen, WANG Chunhua
    2021, 52(2): 225-230.
    Abstract
    Deformation characteristics of open-pit slope affected by excavation loading
    WANG Tao, ZHAO Ruhui
    2021, 52(2): 231-234.
    Abstract
    Research on coal mine worker safety information management based on block chain technology
    LIANG Xiaokang, CUI Enwei, WEI Yinshang
    2021, 52(2): 235-238.
    Abstract
    Evolution analysis of digital mine safety management based on“man-machine-environment-management” theory
    YANG Yang, ZHANG Wenbo, ZUO Chenxi, WANG Zixuan
    2021, 52(2): 239-243,247.
    Abstract
    Analysis of rock burst accidents in coal mine based on behavioral safety
    YIN Wentao
    2021, 52(2): 244-247.
    Abstract
    Situational evaluation model of coal mine safety based on AHP and entropy weight method
    HU Xia, ZHONG Wenjie, CHENG Jingjing
    2021, 52(2): 248-252.
    Abstract
    Analysis on detection results of occupational hazards in 18 coal mines in southwest Guizhou
    JIANG Xingfa, CHEN Xianyong
    2021, 52(2): 253-256.
    Abstract
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