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煤层透气性系数是评价煤层瓦斯抽采难易程度、设计瓦斯抽采系统和考察保护层开采效果的重要参数之一,准确测定具有十分重要的理论价值及实践意义。通过总结我国现有测定煤层透气性系数的理论与方法,对比分析各方法的条件假设、理论推导和测定过程,阐述其优缺点,并结合我国煤矿安全生产的实际需求,对快速准确测定煤层透气性系数提出了新的研究思路。
The permeability coefficient of coal seam is one of the most important parameters to evaluate the difficulty of gas drainage in coal seam, to design gas drainage system and to inspect the mining effect of protective layer. Accurate determination has very important theoretical value and practical significance. By summarizing the existing theories and methods for measuring the permeability coefficient of coal seam in our country, the condition assumptions, theoretical derivation and determination process of each method are compared and analyzed, and its advantages and disadvantages are explained. Combining with the actual demand of coal mine safety in our country, Sex coefficient proposed a new research ideas.