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    Effect of Pore Fractal Characteristics of Gas Coal on Gas Adsorption
    LIU Jikun, LI Chengzhu, WANG Cuixia
    2020, 51(9): 1-5,10.
    Abstract
    Experimental Study on Pressure Relief Gas Extraction of Goaf with Large Diameter Borehole inHigh Gas Close Distance Coal Seams
    SHAO Guoan, ZOU Yongming
    2020, 51(9): 6-10.
    Abstract
    Effect of Electric Potential Gradient on Methane Adsorption and Desorption Behaviors in Lean Coal Modified by Electrochemical Treatment
    ZHANG Xiaoyu, KANG Tianhe, ZHANG Runxu, ZHANG Bin, KANG Guanxian, ZHANG Liankun
    2020, 51(9): 11-15.
    Abstract
    Sensitivity Analysis of Influence of Many Factors on Coal Permeability Under Non-isostatic Deviating Stress
    ZHANG Yaqi, PENG Wenqing
    2020, 51(9): 16-19.
    Abstract
    Influence of Different Geological Structures in Yangquan Mining Area on Outburst-related Physical Parameters of Coal
    LINGHU Jianshe, YAN Zhiming, XU Chao
    2020, 51(9): 20-23,29.
    Abstract
    Experimental Study on Air-drying Heat and Spontaneous Combustion Characteristics of Hydrated Coal
    DONG Ziwen, PI Zikun, LUO Chen, PENG Bin, MENG Liping, WEI Shilong
    2020, 51(9): 24-29.
    Abstract
    Preparation and Properties of a Novel Coal Dust Inhibitor with Cross-linked Network Structure
    HUANG Xueman, DING Guanghui, ZHANG Qian, LU Wei
    2020, 51(9): 30-34.
    Abstract
    Study on Applicability of Different Desorption Formulas to Gas Desorption of Mixed Particle Coal
    LI Xiulei
    2020, 51(9): 35-40.
    Abstract
    Preparation and Properties of High Water Filling Material for Coal Gasification Slag
    XU Yang, XU Zaigang, XIE Hongfei, LI Cuiqin, CAO Yang, CHEN Qianlin
    2020, 51(9): 41-46,51.
    Abstract
    Study on Micro-pores Characteristics of Coking Coal Under Long-term Gas Action
    NIU Wenxing, FENG Zijun, YANG Yifan, WAN Zhijun
    2020, 51(9): 47-51.
    Abstract
    Study on Reasonable Location of Top and Bottom Extraction Roadway of Confined Water Based on High Precision Micro-seismic Monitoring
    YU Chunsheng, ZHAI Changzhi
    2020, 51(9): 52-58.
    Abstract
    Study on　Evolution and Subsidence Fractal Characteristics of Overlying Strata in Thick Loose Layers and Thin Bedrocks
    GUO Longhui, CHENG Hua, PENG Shilong, FU Baojie
    2020, 51(9): 59-64.
    Abstract
    Aeolian Sand Paste Filling Material Ratio Based on Repeated Orthogonal Test
    CAO Xiaofan, TANG Yichuan, DENG Niandong, SHANG Hui, WANG Yi
    2020, 51(9): 65-70.
    Abstract
    Butted Technology Between Underground Directional Drilling Borehole and Vertical Well of Surface U-type Well Group
    YANG Junzhe, JIN Xin, GENG Zengyang
    2020, 51(9): 71-74,80.
    Abstract
    Collaborative Prevention and Control Technology of Coal Spontaneous Combustion in Goaf Under the Influence of High Pumping Alley
    XING Lijie, LIU Fen, JIN Yan, SONG Yushan, GUO Jun
    2020, 51(9): 75-80.
    Abstract
    Air Leakage Technology of Micro Positive Pressure Sealing by Nitrogen Injection in Connection Roadway
    LIU Zhongquan, WANG Wei
    2020, 51(9): 81-84,88.
    Abstract
    Control Technology of Coal Spontaneous Combustion Fire in Complicated Surroundings
    CAO Kai
    2020, 51(9): 85-88.
    Abstract
    Prevention and Control Technology of Rock Burst in Roadway Excavation in Irregular Remaining oal Pillar Area Adjacent to Goaf Side
    DONG Jingyuan, XUE Chengchun, CAO Anye, BAI Xianxi, GU Yu, ZHOU Changfeng
    2020, 51(9): 89-93.
    Abstract
    Treatment Technology of Roof Watering in Ditch Driving Roadway of Shallow Coal Seam
    GAO Bin, JI Zhongkui, YANG Fan, ZHANG Chi, REN Zhizhi, LUO Ankun, XUE Xiaoyuan
    2020, 51(9): 94-97.
    Abstract
    A Device for Straight Drilling of Coal Mine Gas Extraction Borehole
    DUAN Zhiguo
    2020, 51(9): 98-100.
    Abstract
    A State Sensor for Air Door of Main Fan in Coal Mines
    CHENG Yulong, WANG Zuxun
    2020, 51(9): 101-103.
    Abstract
    Automatic Control Air Conditioning System of Shutter Wind Window in Tangshan Mine
    SU Peiyang, ZHU Lingqi, ZHANG Jiayong, ZHOU Yiting
    2020, 51(9): 104-107.
    Abstract
    Study on Mechanism of Rock Core Plugging at Bottom of PDC Reverse Circulation Coring Bit for Nearly Horizontal Hole
    TANG Shengli, FANG Jin, LI Quanxin, LIU Jianlin, ZHAO Jiangpeng
    2020, 51(9): 108-113.
    Abstract
    Mine Gas Chromatograph Based on Network Remote Control
    ZHANG Junjie
    2020, 51(9): 114-117.
    Abstract
    Long Distance Intrinsically Safe Power Supply Technology in Coal Mines
    LIU Yahui
    2020, 51(9): 118-121.
    Abstract
    Large Diameter and Fast Plug-in Type Spiral Drill Pipe for Drilling Down Screen Pipe Without Lifting
    YANG Huwei
    2020, 51(9): 122-125.
    Abstract
    ZDY2-300LM Full Hydraulic Drilling Rig with Double Working Arms
    SHAO Junjie, ZHANG Ning
    2020, 51(9): 126-129.
    Abstract
    Study on Pressure Release Performance of a New Type of Anchor Cable Pressure Release Device
    WU Yuyi
    2020, 51(9): 130-133.
    Abstract
    Safety Requirements of Refuge Chamber in Underground Coal Mines
    SHI Zhiyuan, PING Lihua, YUAN Xiaoming
    2020, 51(9): 134-136.
    Abstract
    Trajectory Control Technology of Bedding Drilling in Medium Thick Coal Seam
    DONG Haichao, ZHAO Yongzhe
    2020, 51(9): 137-139,143.
    Abstract
    Design of a New Anti-car-running Barrier in Underground Coal Mine
    SUN Debiao, ZHENG Yi, YANG Ailan, QIU Deyi, CHEN Yong
    2020, 51(9): 140-143.
    Abstract
    Application of KJ768 Micro-seismic Monitoring System in Early Warning of Strong Mine Pressure Disaster in High Gassy Mines
    ZHANG Guanghui, DENG Zhigang, JIANG Junjun, AN Yujia
    2020, 51(9): 144-147.
    Abstract
    New Rapid Sealing Material of Deep Hole Blasting and Its Process
    LU Xiaorong, LI Xifan, XIONG Zuqiang, HU Yachao, WANG Yan
    2020, 51(9): 148-152.
    Abstract
    Reinforcement and　Toughening of Polyurethane Reinforcement Materials and Engineering Application
    PAN Shuqi, LIU Lizong, GUO Jianwei, WANG Yuchao, YU Xiaofeng, BAI Guangfeng, YU Guang, SUN Gang
    2020, 51(9): 153-156,161.
    Abstract
    Advanced Support Technology for Large Section Roadway in Thick Coal Seam
    GUO Wenbin, MA Chuanbin, SONG Wenjie
    2020, 51(9): 157-161.
    Abstract
    Application of Nonpillar Mining Technique with Automatically Formed Entry by Roof Cutting and Pressure Release Under Different Coal Seam Thicknesses
    GAO Yubing, ZHEN Enze, MA Zimin, WANG Yajun
    2020, 51(9): 168-173.
    Abstract
    Study on Pressure Relief Effect of Overlying Coal and Rock Mass in Mining Under Protective Layer
    DENG Guangzhe, FU Yingkai, YANG Dong
    2020, 51(9): 174-178,186.
    Abstract
    Pressure Relief Effect of Overlapping Mining of Upper Protective Layer with Large Spacing
    KOU Jianxin, ZHANG Jinjing, SUN Juzheng, ZHOU Yang, SUN Weiji
    2020, 51(9): 179-186.
    Abstract
    Evaluation of Coal Reservoir Property and Favorable Area of Coalbed Methane Resources in Jiergalangtu Depression of Erlian Basin
    WANG Tao, DENG Ze, HU Haiyan, WU Song, FAN Wentian
    2020, 51(9): 187-191.
    Abstract
    Influencing Factors Analysis of Coal Permeability Improvement Under the Action of Supercritical CO2
    CHEN Pan, WANG Zeqi
    2020, 51(9): 192-195.
    Abstract
    Numerical Simulation of Spontaneous Combustion in Goaf Based on Ventilation and Advancing Degree
    LI Shengxin, SUN Zhenping, LIU Chungang
    2020, 51(9): 196-200.
    Abstract
    Design on Waterproof Safety Coal Pillar at Outcrop Area of Thick Coal Seam Under he Large Thick Jurassic Red Stratum
    XIE Huadong
    2020, 51(9): 201-204.
    Abstract
    Study on Prevention and Control of Mining Disaster and Mechanical Behavior of Deep Steep Coal Seam
    WANG Ning
    2020, 51(9): 205-210.
    Abstract
    Study on Caving Property of Top Coal in Fully Mechanized Caving Face with Double Inclined and Large Dip Angle
    ZHANG　Bei, YANG Yuanzhong
    2020, 51(9): 211-216,221.
    Abstract
    Detection of CO Purification Effect in Mine Refuge Chamber
    WANG Chen, ZHU Huotian, ZHANG Mingqing
    2020, 51(9): 217-221.
    Abstract
    Stress Evolution and Roof Breaking Characteristics of Surrounding Rock in Oblique Longwall Mining Area of Steeply Dipping Seam
    WU Yongping, LIU Wanghai, XIE Panshi, TIAN Shuangqi
    2020, 51(9): 222-227.
    Abstract
    UDEC Numerical Analysis for Surface Subsidence Characteristics Under Different Mining Methods
    LIU Zhaoxing
    2020, 51(9): 228-234.
    Abstract
    Influence of Width to Height Ratio on Surrounding Rock Stability for Short Wall Backfillling　Rodway
    SONG Tianqi, ZHU Lei, LIU Zhicheng, GU Wenzhe, PAN Hao, ZHANG Xinfu, QIU Fengqi, SONG Liping
    2020, 51(9): 235-239.
    Abstract
    Numerical Analysis of Dynamic Instability Response Characteristics in Roadways Triggered by Shock Wave
    LYU Pengfei, LIU Tianqi, BAO Xinyang, LI Xuping
    2020, 51(9): 240-244.
    Abstract
    Analysis on Hidden Dangers of Staff Behavior in Xinglongzhuang and Research on SAE Closed-loop Management System
    ZHOU Bo, LUAN Jianwei, MAO Yufei, YU Yanbin, JIANG Aiwei
    2020, 51(9): 245-249.
    Abstract
    Research on Efficiency Evaluation of Occupational Health Management in Coal Mine Based on DEA
    LI Chunhe
    2020, 51(9): 250-254.
    Abstract
    Research on Green Mining Efficiency of Coal Enterprises Based on Two-Stage DEA Model
    HOU Dang, LIANG Zhixia
    2020, 51(9): 255-259.
    Abstract
    Research on Miners’ Unsafe Behavior Based on Long and Short Term Memory
    JU Chunlei, NIE Fangchao, LIU Wengang, GUO Jinshan, ZHANG Jiangshi
    2020, 51(9): 260-264.
    Abstract
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