Volume 43 Issue 4
Turn off MathJax
Article Contents
Abstract
Related Articles
XU Lin, YUAN Mei, YANG Mengmeng, XU Shiqing, WANG Yuli, LI Chuang. Research on pore fractal characteristics of outburst coal seam in Guizhou province[J]. Journal of Mine Automation, 2017, 43(4): 32-36. DOI: 10.13272/j.issn.1671-251x.2017.04.008
Citation: XU Lin, YUAN Mei, YANG Mengmeng, XU Shiqing, WANG Yuli, LI Chuang. Research on pore fractal characteristics of outburst coal seam in Guizhou province[J]. Journal of Mine Automation, 2017, 43(4): 32-36. DOI: 10.13272/j.issn.1671-251x.2017.04.008
shu

Research on pore fractal characteristics of outburst coal seam in Guizhou province

  • 1.

    Mining College, Guizhou University, Guiyang 550025, China

  • 2.

    Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang 550025, China

  • 3.

    Guizhou Engineering Lab of

More Information
    Abstract
  • Coal samples of six outburst coal seams in coal-rich areas in Guizhou province were taken as research objects to analyze size grade of pore, fractal dimension, fractal characteristics and relationship between the fractal characteristics and gas adsorption or coal permeability by use of liquid nitrogen adsorption experiment and mercury intrusion experiment. The experimental results show that pores of the coal samples with different grades have good fractal characteristics, which can show porosity and pore distribution characteristics. The fractal dimension can be used to quantitatively analyze pore characteristics of coal samples. There is a positive correlation between the fractal dimension of micro pore of the coal samples and gas adsorption value. Gas adsorption capacity of coal samples in different coals is quite different. The fractal dimension of small pore reflects simple pore structures of coal samples and pore similarity among coal samples. The fractal dimensions of medium pore, large pore, pore fracture and micro fracture show that pore distribution trend of each coal sample is similar. Pores with some size grades develop badly, so measure for increasing the permeability of coal seam are needed to improve gas drainage effect.
    • FullText(HTML)
    • References (0)
    • Related Articles

  • Related Articles

    [1]MENG Hailun, CHENG Xianggang, QIAO Wei. Research on the evolution and prediction of the heights of water-conducting fracture zones in overlying rocks during layered mining of extremely thick coal seams[J]. Journal of Mine Automation, 2024, 50(12): 67-75. DOI: 10.13272/j.issn.1671-251x.2024090065
    [2]LAN Tianwei, WANG Shunxiang, ZHANG Mancang, LI Zhu, WU Guoqiang, FANG Ping, LU Kaixiang, LIU Yonghao, TANG Xiaofu. Fractal characteristics of mine fracture structures and their impact on rockburst[J]. Journal of Mine Automation, 2024, 50(10): 112-119. DOI: 10.13272/j.issn.1671-251x.2024060092
    [3]ZHANG Liming, LIN Jianyun, SI Leilei, ZHAO Qiongxiang, WANG Chen, WU Guopeng. Features of adsorption pore structure in high-rank coal and its influence on methane adsorption capability[J]. Journal of Mine Automation, 2024, 50(7): 147-155. DOI: 10.13272/j.issn.1671-251x.2024040083
    [4]JIA Nan. The influence of coal pore structure on gas desorption-diffusion-seepage process[J]. Journal of Mine Automation, 2024, 50(3): 122-130. DOI: 10.13272/j.issn.1671-251x.2023110076
    [5]YU Fei, ZHANG Tong, LIU Wenjie, TAN Hui, YANG Xin, YU Xiang. Study on failure characteristics of coal sample under different unloading stress paths[J]. Journal of Mine Automation, 2022, 48(4): 96-104. DOI: 10.13272/j.issn.1671-251x.2021090081
    [6]XIA Hui, CAI Feng, YUAN Yuan, XU Chao. Experimental study on gas adsorption and desorption characteristics of coal sample under variable temperature and pressure[J]. Journal of Mine Automation, 2020, 46(7): 89-93. DOI: 10.13272/j.issn.1671-251x.2019100005
    [7]ZHOU Wei, YUAN Liang, XUE Junhua, HE Guanghui, LUO Yong, DUAN Changrui, REN Bo. Experimental analysis of isothermal adsorption and desorption characteristics of gas in coal samples with multi grain sizes: A case study on No.3 coal in Sihe Coal Mine[J]. Journal of Mine Automation, 2018, 44(1): 26-30. DOI: 10.13272/j.issn.1671-251x.17277
    [8]WEI Yang, LI Zhonghui, ZHANG Zhibo, KONG Yanhui, YIN Shan, LIU Shuaijie, CHENG Fuqi. Research on acoustic emission characteristics of loaded sandstone based on R/S analysis[J]. Journal of Mine Automation, 2017, 43(7): 37-42. DOI: 10.13272/j.issn.1671-251x.2017.07.008
    [9]YANG Mengmeng, YUAN Mei, XU Lin, XU Shiqing, LI Chuang, WANG Yuli. Experimental research of influence of coal particle size on initial speed of methane diffusio[J]. Journal of Mine Automation, 2016, 42(9): 56-59. DOI: 10.13272/j.issn.1671-251x.2016.09.013
    [10]LI Yaoqian, LIU Guolei. Research of influence law of water content in coal to gas adsorption and desorption characteristics[J]. Journal of Mine Automation, 2015, 41(6): 74-77. DOI: 10.13272/j.issn.1671-251x.2015.06.018

  • Cited by

    Periodical cited type(2)

    1. 张黎明，林健云，司磊磊，赵琼祥，王沉，武国鹏. 高阶煤吸附孔结构特征及其对甲烷吸附能力的影响. 工矿自动化. 2024(07): 147-155 . 本站查看
    2. 钟方德. 中高阶煤储层吸附孔孔隙结构特征对比分析. 中国煤炭地质. 2018(S1): 48-55 .

    Other cited types(3)

Catalog

    LI Chuang
    • 1.

      Mining College, Guizhou University, Guiyang 550025, China

    1. On this Site
    2. On Google Scholar
    3. On PubMed
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (40) PDF downloads (12) Cited by(5)
    Related

    苏ICP备 05016349号-2

    Supported by: Beijing Renhe Information Technology Co., Ltd. Visits：1357347    Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return