煤炭工程 ›› 2013, Vol. 45 ›› Issue (5): 59-61.doi:

• 生产技术 • 上一篇    下一篇

高瓦斯突出工作面瓦斯治理措施及效果分析

孙明闯,白新华   

  1. 河南省煤层气开发利用有限公司
  • 收稿日期:2012-07-27 修回日期:2012-08-28 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 孙明闯 E-mail:m_c_sun@126.com

Gas Control Measures and Effect Analysis of High Gas Outburst Face

  • Received:2012-07-27 Revised:2012-08-28 Online:2013-05-10 Published:2013-05-10

摘要: 基于朗缪尔和气体状态方程对实验煤样的煤层瓦斯含量进行计算,得出该煤层瓦斯含量为12.02 m3/t。针对试验工作面掘进和回采过程,利用穿层钻孔、顺层钻孔、地面钻井、高位钻孔和采空区埋管预抽瓦斯措施治理试验工作面瓦斯问题,给出了治理措施的的使用方式及大概参数。最后,为了验证瓦斯治理措施的有效性,对采取措施后煤层残存瓦斯压力、残余瓦斯含量进行测量计算和选取相关瓦斯数据进行分析,结果显示,试验煤层残存瓦斯压力降为0.33 MPa,回风流瓦斯浓度维持在0.3%左右,措施效果明显。

关键词: 瓦斯, 工作面, 钻孔, 瓦斯压力, 浓度

Abstract: Based on langmuir and gas state equation, coal seam gas content of the experiment coal sample was calculated and the gas content of this coal seam, 12.02 m3/t, was obtained. For the tunneling and stoping process of test face, gas control measures of permeating strata boreholes, parallel boreholes, ground drillings, high position boreholes and buried pipe in goaf were used to control test face gas. Using ways and parameters of control measures were introduced. At last, residual gas pressure and content were calculated after taking measures. The relevant datum of gas were choosed and analyzed. The results showed test coal seam residual gas pressure decreased to 0.33 MPa and gas concentration in the return air was about 0.3%. This showed the measures had a good effect.

Key words: gas, face, boreholes, gas pressure, concentration

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