• 论文
主办单位:煤炭科学研究总院有限公司、中国煤炭学会学术期刊工作委员会
煤层瓦斯赋存特征及其关键地质因素影响研究
  • Title

    Study on occurrence characteristics of coal seam gas and its key geological factors

  • 作者

    孔胜利杨洋贾音宋雨晴孙田力康润平

  • Author

    KONG Shengli,YANG Yang,JIA Yin,SONG Yuqing,SUN Tianli,KANG Runping

  • 单位

    上海应用技术大学 城市建设与安全工程学院西山煤电集团公司 屯兰矿

  • Organization
    1.School of Urban Construction and Safety Engineering,Shanghai Institute of Technology,Shanghai ,China;2.Tunlan Mine,Xishan Coal Power Group Company,Gujiao ,China
  • 摘要

    地质构造对瓦斯涌出有着明显的控制作用,以西山煤田屯兰煤矿为研究对象,通过分析煤层埋藏深度、围岩条件、水文地质、煤的变质程度、地质构造等地质因素的影响,发现断层是控制瓦斯赋存的关键因素。根据断层分布特征,将屯兰煤矿分为4个相对独立的地质单元,基于实测数据,分析了各地质单元内断层分布及其组合方式、局部小断层等对瓦斯赋存规律的影响作用,并以屯兰煤矿工作面瓦斯涌出量实测数据进行了验证。结果表明:屯兰煤矿煤层瓦斯赋存主要受埋深与NE方向断层的控制;区域构造对瓦斯赋存影响明显,断层及断层的组合方式使得矿井局部瓦斯含量出现异常;工作面瓦斯涌出量与地质构造存在密切的联系,在靠近大断层和局部小断层时瓦斯涌出量显著增加;地质单元的划分对地质构造复杂的煤与瓦斯突出矿井具有重要意义。

  • Abstract
    Geological structure has obvious control effect on gas hazard.Taking Tunlan coal mine of xishan coalfield as the research object,this paper analyzed the influence of geological factors such as buried depth of coal seam,surrounding rock condition,hydrogeology,coal metamorphism degree and geological structure on gas occurrence,and found that fault was the key factor of gas occurrence.According to the distribution characteristics of faults,Tunlan coal mine is divided into four relatively independent geological units.Based on the measured data,the effects of fault distribution and combination methods and local small faults on the occurrence of gas in the local units were analyzed.The data of gas emission from the working face of Gaolan Coal Mine were verified.The results show thatthe gas occurrence in Tunlan coal mine was mainly controlled by NE direction fault and buried depth.Regional structure has a prominent influence on gas occurrence.The combination of faults makes local gas content abnormal.The amount of gas emission in workplace is closely related to geological structure.Gas emission significantly increased near large faults and local small faults;the division of geological units was of great significance to coal and gas outburst mines with complex geological structures.
  • 关键词

    地质构造地质单元瓦斯赋存断层瓦斯涌出量

  • KeyWords

    geological structure; geological units; gas occurrence; fault; gas emission

  • 基金项目(Foundation)
    国家自然科学基金资助项目(51604174);上海市教育委员会和上海市教育发展基金会“晨光计划”资助项目(17CG60)
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主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会

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