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    Comparative Study on Effect of Two Oxidants on Pore Characteristics of Lean Coal
    WANG Hao, SI Qing, LUO Xia, LI Feng
    2020, 51(4): 1-4,9.
    Abstract
    Research on Calibration of Micro Parameters of PFC2D Model in Uniaxial Compression ofCoal Similar Materials
    FENG Kangwu
    2020, 51(4): 5-9.
    Abstract
    Structural Optimization and Test of Nozzle for Coal Seam Slotting
    SHEN Huajian
    2020, 51(4): 10-13.
    Abstract
    Experimental Study on Influence of Nozzle Spiral Inclination Angle on Atomization Performance
    MIAO Dongyan, GAO Guijun
    2020, 51(4): 14-17.
    Abstract
    Study on Optimal Arrangement Method of Multi-circle Frozen Hole Under Action of Large Velocity Groundwater
    DONG Yanbin, RONG Chuanxin, WANG Bin, YANG Fan
    2020, 51(4): 18-25.
    Abstract
    Determination and Analysis of Spontaneous Combustion Mechanism Parameters of Western Inner Mongolia Jurassic Coal Seam
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    2020, 51(4): 26-30.
    Abstract
    Effect of Loading Rate on Mechanical Properties and Energy Conversion Mechanism of Granite Fracture
    WANG Xiaodong, WANG Kun
    2020, 51(4): 31-35.
    Abstract
    Experimental Analysis of Effective Stress Sensitivity of 3# Coal Seam Permeability in Xinjing Mine
    XIE Yuhua, ZHAO Kun, LIU Jianbao, ZHANG Jianfeng, YANG Changyong
    2020, 51(4): 36-41.
    Abstract
    Experimental Study on Drainage of Strata Water-Bearing and Permeability in Huangyuchuan Coal Mine
    WU Hongtao, CHEN Jiangfe, WANG Chongping, DOU Hao
    2020, 51(4): 42-46.
    Abstract
    Experimental Study on Deformation Characteristics Monitoring of Overlying Strata Based on Distributed Optical Fiber
    CHAI Jing, LI Shujun, ZHANG Dingding
    2020, 51(4): 47-51.
    Abstract
    Research on Optimum Mix Proportion and Modification Mechanism of Backfill Materials Based on Orthogonal Tests
    NAN Qiucai
    2020, 51(4): 52-56.
    Abstract
    Study on Earthquake Resistance of Underground Reservoir in Mined-out Area of Mine
    WANG Wencai, LI Yumeng
    2020, 51(4): 57-60,65.
    Abstract
    Effect of Impact Times of Drop Hammer Method on Particle Size Distribution of Granular Coal
    ZHANG Xianshang, LIU Jun, LIU Jingen
    2020, 51(4): 61-65.
    Abstract
    Propagation Law of Cracks in Surrounding Rock of Different Shape Tunnels Under Adjacent Blasting
    LIU Kang, GUO Dongming, ZHANG Shuai, SHI Zhenxin, CHEN Jin
    2020, 51(4): 66-71.
    Abstract
    Reasonable Width of Coal Pillar in Gob-side Trapezoidal Roadway in Inclined Thick Coal Seam
    XU Rengui, ZHAI Chunjia, LIU Limin, LI Changhao
    2020, 51(4): 72-76.
    Abstract
    Mechanism of Located-shifted Landslide in Weak Basement of Jiangjun Gobi No.2 Open-pit Coal Mine
    WAN Zhongming, ZHU Tao, GAN Huaijun, DAI Feilong
    2020, 51(4): 77-80.
    Abstract
    Practice on Precision Prevention and Control Technology for Deep Stress-dominated Outburst
    LI Siqian
    2020, 51(4): 81-87.
    Abstract
    Optimization Technology of Gas Drainage Pipe Network Based on Graph Theory
    XIONG Wei
    2020, 51(4): 88-92.
    Abstract
    Analysis and Prevention Technology of Mine Water Hazard in Roof and Floor Limestone Aquifer of Northern Huanghe Coalfield
    WANG Wei, ZHENG Shitian, LI Wenjiang, DU Botao, LUO Ankun
    2020, 51(4): 93-96.
    Abstract
    Coal Roadway Driving Technology in Low Permeability Coal Seam Based on Short Hole Rapid Drainage
    XIANG Zhencai
    2020, 51(4): 97-100.
    Abstract
    Analysis of Rotary System and Parameter Optimization of Coalbed Methane Drilling Rig
    LU Feifei
    2020, 51(4): 101-104.
    Abstract
    Design Method of Center Pipe Embedded in Reverse Circulation Sampling Pipe Used in Coal Mine
    ZHANG Rui
    2020, 51(4): 105-108.
    Abstract
    Structural Parameter Optimization of Dual Fan Parallel Station Based on Orthogonal Test
    LIANG Suyu, WANG Wencai
    2020, 51(4): 109-112.
    Abstract
    Accurate and Rapid Method of Producing Blanking File for TEM Sector Advanced Detection Based on Surfer
    LI Hao
    2020, 51(4): 113-117.
    Abstract
    Automatic Analysis Technology of Goaf Spontaneous Combustion “Three Zones”
    ZHAO Tongyu, YANG Shengqiang, CHEN Dengzhao, LIU Jie
    2020, 51(4): 118-121.
    Abstract
    Design of Double Motor Power Head of High Power Deep Hole Directional Drilling Rig
    ZHANG Rui
    2020, 51(4): 122-124,128.
    Abstract
    Research on Equipment and Technology of Ground Grouting Multi-branch Horizontal Well in Coal Mining Area
    YANG Zhe
    2020, 51(4): 125-128.
    Abstract
    Coal Rock Image Feature Extraction and Recognition Method Based on LBP and GLCM
    WANG Chao, ZHANG Qiang
    2020, 51(4): 129-132.
    Abstract
    Analysis on Effect of Grouting in Compound Goaf of 010910 Working Face in Wuhushan Coal Mine
    PENG Rongfu, WAN Xiangyun, JIA Bing, SUN Lanhui, WANG Wenjun, LI Wenshan, CHEN Baoyi
    2020, 51(4): 133-136.
    Abstract
    Application of Transient Electromagnetic Method in Detecting Water Richness in Goaf of Overburden Coal Seam at Working Face
    LIU Baixiang, XIAN Penghui, QIU Nianguang
    2020, 51(4): 137-141.
    Abstract
    Method for Determination of Mined-out Roof Expansion Coefficient of Self-formed Roadway Without Pillar
    YANG Jun, ZHANG Jiabin, ZHOU Shuai, MA Xingen, WANG Yajun, HOU Shilin
    2020, 51(4): 142-146.
    Abstract
    Boundary Determination of Concealed Structure Region Based on Electromagnetic Tomography
    QU Xiaobing, BAO Junrui
    2020, 51(4): 147-151.
    Abstract
    Influence of Negative Pressure in High Level Roadway on Coupling Hazard Prevention of Gas and Coal Fire in Gob
    AN Zhaofeng
    2020, 51(4): 152-156.
    Abstract
    Analysis of Influence Mechanism of Interference Mode Between Drainage Wells on CBM Extraction Based on LBM Method
    ZHENG Junling, JIN Yi, LI Weina, LIU Xiaokun, WANG Cheng
    2020, 51(4): 157-161,166.
    Abstract
    Calculation of Coalbed Methane Resources in Mining Stability Zone Based on Gas Emission
    LI Dan
    2020, 51(4): 162-166.
    Abstract
    Characteristics of Tectonic Coal in 3# Coal Seam of Eastern Qinnan Block and Its Influence on Permeability
    LIU Shiqi, SANG Shuxun, YANG Henglin, SANG Guangjie, QIAO Maopo
    2020, 51(4): 167-171.
    Abstract
    Evaluation Method of Restoring Production Potential of Sand-producing Coalbed Methane Shut-in Wells
    YU Jiaojiao, LI Youwu, LI Lezhong, ZHANG Yue, CUI Jingyun
    2020, 51(4): 172-176.
    Abstract
    Feasibility Analysis of Source Release of Sulfur Based on Coal Seam Water Injection Technolog
    LU Kaixuan, XU Lianman
    2020, 51(4): 177-180.
    Abstract
    Numerical Simulation of Effect of Tunnel Section Mutation on Smoke Spread
    FU Wei
    2020, 51(4): 181-184,189.
    Abstract
    Influence of Continuous Open Nitrogen Injection on Characteristics of “Three Zones” Distribution of Spontaneous Combustion in Goaf
    WANG Shuai
    2020, 51(4): 185-189.
    Abstract
    Analysis of Productivity Characteristics of Coalbed Methane Based on 3D Geological Modeling
    LI Yong, JIANG Zaibing, LIU Yuhui
    2020, 51(4): 190-194.
    Abstract
    Influencing Factors and Prevention System of Rock Burst in Baodian Protective Layer Mining
    ZHU Huaizhi, ZHANG Feng, NI Haiming
    2020, 51(4): 195-201.
    Abstract
    Study on Reasonable Width of Coal Pillars in Pre-mining Top-slicing Fully Mechanized Top-coal Caving Face of Thick Coal Seam
    YANG Hengze, LENG Chao, WANG Chao, XIE Wenwu, LIU Chao, HE Hongkun
    2020, 51(4): 202-206,212.
    Abstract
    A New Method of Coal Seam Roof Classification and Its Stability Evaluation
    WANG Haijun, MA Liang, ZHU Yuying
    2020, 51(4): 207-212.
    Abstract
    Effect of Crack Closure on Permeability in Abutment Pressure Area
    LI Li, YU Lei, ZHANG Shuangyu, KANG Qiang
    2020, 51(4): 213-217,222.
    Abstract
    Numerical Simulation and Analysis of Influencing Factors of Coal Wall Failure in Fully Mechanized Mining Face with Large Mining Height
    YIN Ruibin, KANG Tianhe, LI Chao, WANG Lilong
    2020, 51(4): 218-222.
    Abstract
    Numerical Simulation of Influence of Hollow Hole on Blasting Effect of Parallel Cut
    LUO Jianhui, CHENG Bing, WANG Haibo, ZONG Qi
    2020, 51(4): 223-226.
    Abstract
    Slope Stability Control Scheme for Steep Slope Mining in Pingshuo East Open-Pit Coal Mine
    REN Peng, LI Wei, DING Xinpin, LI Qingyao
    2020, 51(4): 227-230.
    Abstract
    Study on Deformation and Failure Law and Instability Mechanism of Slope in Open-underground Mining
    WANG Zhenwei, DING Xinpin, LIU Bowen, LI Yingzuo
    2020, 51(4): 231-234.
    Abstract
    Study on Law of Surface Movement and Deformation in Thick Loose Layer with Large Mining Height
    YU Xueyi, MU Chi, ZHANG Dongdong
    2020, 51(4): 235-239,243.
    Abstract
    Evaluation on Intervention Effect of Knowledge, Belief and Practice Mode in Dust Control for Coal Miners in Inner Mongolia
    WANG Jianguo, ZHE Yaru, QI Feiwen, LIU Ying
    2020, 51(4): 240-243.
    Abstract
    Comparative Study of Coal Mine Accident Investigation Reports in China and America
    LYU Qian, FU Gui, REN Jianguo, ZHENG Yunqing, YANG Chun
    2020, 51(4): 244-247,252.
    Abstract
    Research on Relationship Between Organizational Structure Reform and Miners’ Unsafe Behavioral Intention
    YI Tao, LI Jizu, FENG Guorui, KANG Lixun, SONG Yan, QU Jiaojiao
    2020, 51(4): 248-252.
    Abstract
    Research on Influence Mechanism of Social Capital on Safety Behavior of Coal Miners
    KANG Gaojie, JI Juhai
    2020, 51(4): 253-256.
    Abstract
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