341 / 2018-05-28 08:11:41
Study on the rock burst tendentiousness of coal under different gas pressures
Deep mine; Coal mass; Gas pressures; Rockburst; Tendentiousness analysis
全文录用
Zhenhua OUYANG / North China Institute of Science and Technology
Guanghui ZHANG / Mine Safety Technology Branch of China Coal Research Institute
Qinwen LI / School of Civil and Resource Engineering, University of Science & Technology Beijing
Xinping LAI / Xi’an University of Science and Technology
Ruin Peng / North China Institute of Science and Technology
In deep mine, the geological environment and mechanical properties will be different from the shallow mining. Accordingly, the mine type will change from low gas mine to high gas mine, or from non-impact mine to impact mine. Hence, rock burst and other dynamic disasters are likely to happen, which seriously threatens the safety and stability of coal mine. In this paper, by independent developed gas simulation experiment instrument, the impact tendency tests of coal under different gas pressures were conducted. Hence the influence of gas pressure on the uniaxial compressive strength, elastic energy index, impact energy index and dynamic damage time could be determined. Above these four parameters, the effect of gas pressure on the impact tendency was confirmed. Finally, based on the relationship between gas and coal strength, the energy accumulation and dissipation characteristics under uniaxial compression and circulation loading of gassy coal were studied, so the influence of gas on the coal energy was raised.
重要日期
  • 会议日期

    10月22日

    2018

    10月24日

    2018

  • 05月31日 2018

    摘要截稿日期

  • 07月05日 2018

    初稿截稿日期

  • 08月10日 2018

    初稿录用通知日期

  • 10月24日 2018

    注册截止日期

主办单位
北京科技大学
McGill University
中国矿业大学(北京)
河南理工大学
University of Wollongong
东北大学
重庆大学
中国矿业大学
Laurentian University
辽宁工程技术大学
西安科技大学
北方工业大学
江西理工大学
黑龙江科技大学
协办单位
中国职业安全健康协会
中国安全生产科学研究院
煤炭信息研究院
中安安全工程研究院
International Journal of Mining Science and Technology
Safety Science
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