煤层透气性系数测定方法的研究现状  

Research Status About Determining Permeability Coefficient in Coal Seam

作　　者：王兆丰[1,2] 董庆祥[1] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454003 [2]河南理工大学瓦斯地质与瓦斯治理重点实验室培育基地,河南焦作454003

出　　处：《煤矿安全》2015年第6期16-19,共4页Safety in Coal Mines

摘　　要：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 in coal seam is one of the most important parameters for evaluating the difficulty of gas drainage from coal seam,designing the gas drainage system and examining the exploitation efficiency of the protective coal seam. The accurate determination has important theory value and practice significance. By summarizing the existing theories and methods of determination of permeability coefficient in our country,this study contrasts and analyzes the assumptions,theoretical derivation and determination process of different methods,and elaborates the advantages and disadvantages. Then combining with the actual requirements of coal mine safety production,we propose a new idea for determining the permeability coefficient in coal seam rapidly and accurately.

关 键 词：煤层透气性系数 测定方法 渗透率 压力恢复曲线 径向流量法 

分 类 号：TD712[矿业工程—矿井通风与安全]