工程科学学报Issue(8)：971-975,5.DOI:10.13374/j.issn2095-9389.2015.08.001
低透气性原煤瓦斯渗流各向异性试验研究
Experiment research on gas seepage anisotropy in low-permeability coal
摘要
Abstract
To study the anisotropy of gas seepage in coal seams with low permeability, coal samples were prepared respectively in the parallel bedding direction and the vertical stratification direction of the same coal rock. Tri-axial servo seepage tests on gas-contained coal were detected by using a self-developed apparatus. It is found that the permeability of coal samples in the parallel is far greater than that of coal samples in the vertical. With the increase of axial pressure, the permeability of coal samples in the parallel reaches its minimum at the yield point before the peak failure, while the permeability of coal samples in the vertical gets its minimum at the initial period of the elastic stage. The permeability of both the parallel and the vertical nonlinearly increases after the peak fail-ure.关键词
煤矿开采/瓦斯/渗流/各向异性/煤层Key words
coal mining/gas/seepage/anisotropy/coal seams分类
矿业与冶金引用本文复制引用
康向涛,尹光志,黄滚,李星,尚德磊,李文璞..低透气性原煤瓦斯渗流各向异性试验研究[J].工程科学学报,2015,(8):971-975,5.基金项目
国家重点基础研究发展计划资助项目(2011CB201203) （2011CB201203）
国家自然科学基金资助项目(51174241,51374256,51434003) （51174241,51374256,51434003）
