三软不稳定厚煤层瓦斯突出区域预测方法与应用

Methods and its application of regional prediction of coal and gas outburst on unstable thick coal seam with soft roof,soft coal and soft floor

针对三软不稳定厚煤层建立适用的瓦斯突出区域预测方法在实践中具有重要的意义,通过对矿井瓦斯地质特征和瓦斯赋存规律的研究,采用单项指标法、综合指标法、瓦斯地质统计法以及瓦斯地质法4种方法相结合,对矿井煤与瓦斯突出进行了综合区域预测,最终建立了以瓦斯含量为主要指标的煤与瓦斯突出区域预测瓦斯地质方法,并将井田划分为突出危险区、威胁区和非突出区.

Regional prediction methods of coal and gas outburst coal seam with soft roof, soft coal and soft floor. In the study of diction was given by the single index method, comprehensive in and gas geological method. Finally, the gas content in coal and gas regional prediction. is important gas deology dex method, in practice on the unstable thick and gas content the regional pregas geological statistics method geological prediction method was built with the main index of gas The danger zone , threat zone and non - danger zone of coal and gas outburst was divided in Xin＇an coal mine