摘要
以贵州矿区突出煤层40~60目的型煤试件为研究对象,借助自主研发的三轴渗流设备开展了不同含水率及有效应力条件下的三轴渗流试验,系统研究了含瓦斯煤渗透率受水-力耦合作用的演化趋势,根据试验结果推导了上述两因素与含瓦斯煤渗透率间的量化关系式,研究成果对贵州瓦斯灾害防治和煤层气勘探开发提供理论依据。
Triaxial seepage tests under different water content and effective stress are carried out with independently developed triaxial seepage equipment, taking the 40 - 60 mesh briquette specimens of outburst coal seam in Guizhou as study Objects. The influences of water and effective stress coupling on the permeability of coal containing are studied systematically. The quantitative relation formula of permeability of coal containing gas is derived based on the coupling of water content and effective stress. The research results provide a theoretical basis for the prevention and control of gas disaster and the exploration and development of coal bed gas,
出处
《工业安全与环保》
2018年第1期35-37,77,共4页
Industrial Safety and Environmental Protection
基金
国家自然科学基金(51574093)
贵州大学引进人才项目(贵大人基合字(2015)30号)
贵州省科学技术基金(黔科合J字[2015]2049号)
贵州省科技厅
贵州大学联合资金计划资助项目(黔科合LH字[2014]7654号)
关键词
含水率有
效应力
耦合
含瓦斯煤
渗透率
water content effective stress coupling coal containing gas permeability
