【摘要】 含瓦斯煤的渗透特性是科学制定煤矿区煤层气开发部署方案与矿井瓦斯灾害治理的重要基础参数。在实施矿井瓦斯抽采(或煤矿区煤层气开发)的过程中,煤层瓦斯含量逐渐降低,从而使得煤体的渗透特性发生变化。实际上,处于地层条件下的含瓦斯煤体渗透特性还将受到地应力、温度等因素的影响。长期以来,在煤矿井下对煤层取样,进行实验室测定是国内外学者研究含瓦斯煤渗透特性演化特性的主要技术手段。首先分析了各主要因素对含瓦斯煤渗透特性影响的作用机制,重点介绍了含瓦斯煤渗透特性的实验测试方法,并着重分析当前研究中存在的问题,并对未来的发展方向与有待于进一步研究的问题进行了总结。更多还原

【Abstract】 The permeability characteristics of coal containing gas are the important basic parameters for the scientific development of coal seam gas development and deployment scheme and the control of mine gas disaster. During the implementation of mine gas drainage(or coalbed methane development in mining area), the gas content of coal seam gradually decreases, which makes the permeability characteristics of coal change. In fact, the permeability characteristics of coal body containing gas under the condition of formation will be influenced by the factors such as geo-stress and temperature. For a long time, coal seam sampling and laboratory measurement are the main technical means for scholars to study the evolution characteristics of permeability of coal containing gas. The paper firstly analyzes the mechanism of permeability effect of main factors on coal containing gas, introduces the test method of coal containing gas permeability, and emphatically analyzes the existing problems in current research and summarizes the future direction of development and the problems to be further studied.更多还原