厚煤层分层开采综放工作面瓦斯涌出量预测

王小朋

王小朋.厚煤层分层开采综放工作面瓦斯涌出量预测［J］.工矿自动化，2020,46（6）：72-75.. DOI: 10.13272/j.issn.1671-251x.2019090079
引用本文: 王小朋.厚煤层分层开采综放工作面瓦斯涌出量预测［J］.工矿自动化，2020,46（6）：72-75.. DOI: 10.13272/j.issn.1671-251x.2019090079
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WANG Xiaopeng. Prediction of gas emission rate on fully-mechanized caving face with layered mining of thick coal seam[J]. Journal of Mine Automation, 2020, 46(6): 72-75. DOI: 10.13272/j.issn.1671-251x.2019090079
Citation: WANG Xiaopeng. Prediction of gas emission rate on fully-mechanized caving face with layered mining of thick coal seam[J]. Journal of Mine Automation, 2020, 46(6): 72-75. DOI: 10.13272/j.issn.1671-251x.2019090079
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厚煤层分层开采综放工作面瓦斯涌出量预测

  • 1.

    瓦斯灾害监控与应急技术国家重点实验室， 重庆400037

  • 2.

    中煤科工集团重庆研究院有限公司， 重庆400037

基金项目: 

国家科技重大专项项目（2016ZX05067-004-004）

详细信息

  • 中图分类号: TD712

Prediction of gas emission rate on fully-mechanized caving face with layered mining of thick coal seam

  • 1.

    State Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, China

  • 2.

    CCTEG Chongqing Research Institute, Chongqing 400037, China

摘要

    摘要
  • 摘要: 综放工作面与单一回采工艺工作面不同，采用AQ 1018-2006《矿井瓦斯涌出量预测方法》预测综放工作面瓦斯涌出量时存在较大误差,且目前缺少厚煤层分层开采综放工作面瓦斯涌出量预测方面的研究，导致瓦斯治理技术依据性不强。针对上述问题，提出了厚煤层分层开采综放工作面瓦斯涌出量预测方法。通过分析厚煤层分层开采综放工作面瓦斯涌出特点，确定了综放工作面瓦斯涌出来源，包括割煤、放煤、采空区、邻近层涌出瓦斯；针对不同瓦斯涌出来源，得出了相应的瓦斯涌出量计算公式，由此得到厚煤层分层开采综放工作面瓦斯涌出量计算公式。采用该方法对乌东煤矿及碱沟煤矿综放工作面瓦斯涌出量进行预测，预测值与实测值的误差均小于5%，满足实际生产需求。
    Abstract: Due to the difference between fully-mechanized caving face and single stoping process face, there would be a big error in predicting gas emission rate on fully mechanized caving face by use of AQ 1018-2006 The Predicted Method of Mine Gas Emission Rate. Meanwhile, there is a lack of research on prediction of gas emission rate on fully-mechanized caving face with layered mining of thick coal seam at present, which results in weak technology base for gas control. For the above problems, a prediction method of gas emission rate on fully-mechanized caving face with layered mining of thick coal seam was proposed. By analyzing gas emission characteristics of the fully-mechanized caving face, gas emission sources were determined including gas from coal cutting, coal caving, goaf and adjacent layers. Corresponding calculation formulas of gas emission rate were obtained according to different gas emission sources, so as to get a calculation formula of gas emission rate on fully-mechanized coal-caving face with layered mining of thick coal seam. The method has been used to predict gas emission rate on fully-mechanized caving faces of Wudong Coal Mine and Jia'gou Coal Mine separately, and the results show that the error between the predicted result and the measured value is less than 5% to meet actual production needs.
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出版历程
  • 刊出日期:  2020-06-19

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