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    Numerical simulation of negative pressure cavity suppression of T-pipe gas explosion
    DING Hao, DU Yujing, XIE Beijing
    2021, 52(7): 1-8.
    Abstract PDF
    A comparative study on difference of pore characteristics of coal with different deformation degrees
    ZHAO Zheng, NI Xiaoming, HAN Wenlong, LI Zhongcheng
    2021, 52(7): 9-14.
    Abstract PDF
    Study on heterogeneous characteristics of methane adsorption by natural coal
    WANG Jiangfang, WANG Chen, FENG Zengchao
    2021, 52(7): 15-20.
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    Pore characteristics and influencing factors of coal reservoir in Tucheng Mining Area of Guizhou Province
    TANG Daixue, LIU Wen, LOU Yi, SHAO Linjie, GONG Bin
    2021, 52(7): 21-26,32.
    Abstract PDF
    Effect of pre-crack on coal and rock mass induced by high voltage electric pulse in water
    LI Chunming, ZHAO Yinxiang, ZHAO Jinchang, YANG Shuangsuo, MA Zhongzhong
    2021, 52(7): 27-32.
    Abstract PDF
    Research on law of magnetic anomaly variation with depth in fire area of Ordos Coalfield
    ZHANG Xinhai, CHENG Wangshou, LI Xunguang, MIAO Yuhui, DOU Kai, ZHU Hui, ZHAO Bin, CHEN Fei, YANG Shaoxiong
    2021, 52(7): 33-38.
    Abstract PDF
    Effect of axial loading rate on mechanical and permeability properties of raw coal
    WEI Wenhui, WEI Aidong, DUAN Minke
    2021, 52(7): 39-46.
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    Experimental study on mechanical response failure mechanism of dynamic pressure roadway based on roof cutting and pressure releasing technology
    YANG Zheng, DING Yanxiong, GAO Xiaojun
    2021, 52(7): 47-53.
    Abstract PDF
    Study on creep failure of coal specimen subjected to step loading
    DUAN Huiqiang
    2021, 52(7): 54-60.
    Abstract PDF
    A new pressure maintaining and sealing technology for gas drainage borehole
    WANG Shuai
    2021, 52(7): 61-66.
    Abstract PDF
    Three-dimensional electrical method advanced detection technology based on comparative method to eliminate the influence of roadway
    ZHAI Peihe, REN Keke, ZHANG Zhao, LIU Yuxiang
    2021, 52(7): 67-71,78.
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    Application of transient electromagnetic method in exploring karst aquifer in Qinglong Coal Mine of Qianbei Mining Area
    FAN Juan
    2021, 52(7): 72-78.
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    Research and application of pulverized coal ash ceramsite concrete isolation wall
    LI Zhiyong, XIN Min, LIU Xingle, TIAN Xianghong
    2021, 52(7): 79-83.
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    Grouting filling treatment method of goaf in small coal mine with soft rock roof and large buried depth
    QIAO Yanzhen
    2021, 52(7): 84-88.
    Abstract PDF
    Key technology of mine differential pressure and wind speed sensor used in harsh environmen
    LIU Peng, ZOU Dedong
    2021, 52(7): 89-93.
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    Application status and development direction of wireless positioning technology and system in underground coal mine
    CHANG Lin
    2021, 52(7): 94-98.
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    Accurate positioning system for mine based on UWB technology
    WANG Fei
    2021, 52(7): 99-102.
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    Mine intrinsic safety power supply based on adjustable capacity and protection time
    ZOU Dedong, LIU Peng
    2021, 52(7): 103-106,111.
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    Intelligent inspection robot system for return air roadway in Zhangjiamao Coal Mine
    MAO Hao, XUE Zhongxin, FAN Shengjun, ZHAO Hongju
    2021, 52(7): 107-111.
    Abstract PDF
    Design and application of on-line monitoring system for borehole group in coal mine
    WANG Xiaolong, ZHAO Liang, ZHANG Jun
    2021, 52(7): 112-115.
    Abstract PDF
    Directional drilling technology with mud pulse wireless MWD in underground coal mine
    LI Quanxin, CHU Zhiwei, XU Chao, FANG Jun
    2021, 52(7): 116-120.
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    Application of double pipe directional drilling technology in 313 face of Qinan Mine
    XU Rui, HONG Jianjun, ZHANG Jie
    2021, 52(7): 121-124.
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    KG-300-2J flushing fluid purification circulation system using directional drilling in coal mine
    LIU Zhi, LIU Jianlin, LI Quanxin, WANG Siyi
    2021, 52(7): 125-128.
    Abstract PDF
    Key technology of split-type slitting drill rig with double-arm for mine
    KAN Zhitao
    2021, 52(7): 129-133.
    Abstract PDF
    A method for autonomously realizing rapid off-site power-off in underground coal mine substation
    GAO Xubin
    2021, 52(7): 134-137.
    Abstract PDF
    Development of bolting machine on anchor excavator machine
    LI Wangnian
    2021, 52(7): 138-141.
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    Design of mine portable card reader based on UWB
    ZHANG Liqun
    2021, 52(7): 142-146.
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    Monitoring system on brake clearance of main shaft hoist in Hongyang No.2 Coal Mine based on laser detection technology
    MU Shujie, WANG Guanglu, GONG Xibo, SHI Xiaoxin
    2021, 52(7): 147-150.
    Abstract PDF
    Development and application of full hydraulic automatic drill pipe adding device
    HAN Jian
    2021, 52(7): 151-154.
    Abstract PDF
    Supplement of unit equal desorption enthalpy to comprehensive action hypothesis of coal and gas outburst
    ZHANG Xuemei, LI Dong, MA Qinghua, HAO Jingyuan
    2021, 52(7): 155-161.
    Abstract PDF
    Research progress on gas resource evaluation, extraction and utilization in abandoned coal mines in China
    WU Jingang, MAO Junrui
    2021, 52(7): 162-169.
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    Numerical analysis on migration of shearer-generated dust in mechanized coal mining workface
    REN Zhifeng, LI Yuanzhi, WU Jianjun, WANG Bingjian, LU Zhongliang
    2021, 52(7): 170-174.
    Abstract PDF
    Minimum wind flow of air directional drilling technology in soft-fragmentized coal seam
    SUN Lihai
    2021, 52(7): 175-180.
    Abstract PDF
    Research on deformation and failure characteristics of floor of working face on high pressure aquifer
    SHI Lei
    2021, 52(7): 181-186,192.
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    Coal and rock dynamic disaster analysis in Huainan Mining Area based on key stratum control principle
    GAN Lintang
    2021, 52(7): 187-192.
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    Optimization of support parameters of water rich roadway based on thickness of grouting reinforcement circle
    ZHU Shikui, DING Ke
    2021, 52(7): 193-199,206.
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    Numerical analysis of time-sharing differential freezing temperature field in coal mine
    WANG Xiaojian, LI Zhaosheng, ZHANG Liangliang, SUN Shiyuan, SHEN Renwei, FANG Gensheng
    2021, 52(7): 200-206.
    Abstract PDF
    Mechanism and prevention of rock burst induced by horizontal sublevel mining of a steeply inclined extra-thick coal seam
    WANG Zhengyi, DOU Linming, HE Jiang, CAO Jinrong
    2021, 52(7): 207-214.
    Abstract PDF
    Research progress and analysis of multi-data fusion technology for advanced detection of mine roadway
    QIU Shi, ZHANG Pingsong, HU Ze’an, LI Shenglin
    2021, 52(7): 215-223.
    Abstract PDF
    Mechanism analysis and design of full-length anchoring bolt in rectangular roadway
    GU Shuancheng, WANG Pan, YANG Chaofan
    2021, 52(7): 224-230,236.
    Abstract PDF
    Finite element analysis of temporary support for top coal fast tunneling
    CHENG Fuming, HAN Zhongli, LIU Jiansheng, CAO Xiulong, HAN Xiaoming, LU Zhongliang
    2021, 52(7): 231-236.
    Abstract PDF
    Simulation study on slip failure of roadway surrounding rocks containing weak layer
    DING Minjie, GUO Pengfei, PENG Yanyan
    2021, 52(7): 237-244.
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    Study on step height optimization and slope stability of dump in opencast coal mine
    YANG Fuqing, TIAN Ya, HANG Chuanwei, WANG Zhile, LU Xiang, CAI Qingxiang
    2021, 52(7): 245-251.
    Abstract PDF
    Empirical study on intervention effect of risk pre-control management system in coal industry
    FA Ziwei, LI Xinchun
    2021, 52(7): 252-255.
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    Study on significance of safety signs in different working face scenes in coal mine
    TAN Zhanglu, LIU Jie, WU Qi
    2021, 52(7): 256-260.
    Abstract PDF
    Discussion on reform of coal mine safety supervision system based on Internet of Things
    FENG Chunhua, ZHANG Minghui
    2021, 52(7): 261-264.
    Abstract PDF

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