›› 2018, Vol. 50 ›› Issue (8): 0-0.

• 研究探讨 •    下一篇

综采工作面瓦斯涌出量数学预测模型建立及实测应用

郭建行1,程志恒2,孔维一3   

  1. 1. 煤炭科学技术研究院有限公司
    2. 煤炭科学技术研究院有限公司瓦斯所
    3. 华晋焦煤有限责任公司沙曲二矿
  • 收稿日期:2018-03-19 修回日期:2018-04-11 出版日期:2018-08-20 发布日期:2018-12-17
  • 通讯作者: 郭建行 E-mail:jianhang2011@hotmail.com

Establishment and application of mathematical prediction model of gas emission rate in fully mechanized coal face

  • Received:2018-03-19 Revised:2018-04-11 Online:2018-08-20 Published:2018-12-17

摘要: 为了实现综采工作面瓦斯涌出量精准化预测的目的,以煤体瓦斯涌出规律本构方程为理论研究基础,综合综采工作面各瓦斯涌出源自身特征因子,建立了煤壁瓦斯涌出量数学预测模型、落煤瓦斯涌出量数学预测模型、采空区遗煤瓦斯涌出量数学预测模型以及邻近层瓦斯涌出量数学预测模型。运用该数学预测模型对煤层群条件下的上社煤矿9209和沙曲煤矿14205综采工作面瓦斯涌出量进行了计算,计算结果与实测统计值之间的误差仅为2.60%和4.92%,均小于5.00%,验证了该数学预测模型的准确性。在此基础上,运用该数学预测模型对9209和14205综采工作面不同产煤量条件下的瓦斯涌出量进行计算,结果表明:9209和14205综采工作面瓦斯涌出量随工作面产煤量增加近似呈线性增大,其中邻近层瓦斯涌出量最为显著,该数学预测模型在综采工作面瓦斯涌出量预测工作中具有一定的实际应用价值。

关键词: 为了实现综采工作面瓦斯涌出量精准化预测的目的, 以煤体瓦斯涌出规律本构方程为理论研究基础, 综合综采工作面各瓦斯涌出源自身特征因子

Abstract: In order to realize accurate prediction of gas emission rate in fully mechanized coal face of closed distance coal seam group, in order to constitutive equation of coal gas emission as the theoretical basis, the calculation model of gas emission rate of coal wall , the calculation model of gas emission rate of fallen coal, the calculation model of gas emission rate of remaining coal in gob and the calculation model of gas emission rate of the adjacent coal seams were established, combining with characteristic factors of gas emission source in fully mechanized coaf face. By the prediction model gas emission rate of 9209 and 14205 fully mechanized coal face in Shangshe coal mine and Shaqu coal mine was calculated, and the predicted value and the measured value of statistical error were 2.60% and 4.92%,on this basis, By the prediction model gas emission rates of 9209 and 14205 fully mechanized coal face in different Annual output of coal were predicted. The research shows that gas emission rate of 9209 and 14205 fully mechanized coal face increased linearly with the increase of annual output of coal, and gas emission rate of the adjacent coal seams is the most significant, and the prediction model has a certain practical value in predicting gas emission rate of fully mechanized coal face.

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