摘要
针对利用煤层瓦斯抽采并防治瓦斯灾害的问题.本文利用含瓦斯煤热流固耦合三轴伺服渗流装置,进行不同温度条件下的三轴压缩破坏试验和渗透特性试验,探索煤体温度在瓦斯抽采和预防煤与瓦斯灾害中的作用.结果表明:(1)煤体的强度随着温度的增加而降低;(2)煤体变形过程中的渗透性变化趋势有一致性,它与变形量直接相关,受温度影响很小;(3)控制煤体温度是提高瓦斯抽采效果的一个合理有效的措施.
How to make use of coal seam gas extraction and the prevention and control of gas disasters.By using the triaxial servo-controlled seepage equipment for thermo-fluid-solid coupling of coal containing methane,the triaxial compressive test and permeability test are conducted under different temperatures,and discover the role of temperature in gas extraction and prevention the of coal and gas disasters.The results show that:(1) Coal strength is decreased with temperature increasing;(2)the change in Permeability trends to be in consistency,which was directly related with deformation and the temperature influence was little;(3)Controlling the temperature was reasonable and effective measures for enhancing gas drainage.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2013年第8期1085-1088,共4页
Journal of Liaoning Technical University (Natural Science)
关键词
煤与瓦斯突出
温度
渗透率
力学特性
变形特性
三轴压缩
瓦斯抽采
煤矿安全
coal and gas outburst
temperature
permeability rate
mechanical properties
deformation properties
trixial compression
gas extraction
coal mine safety
