摘要
本文以物理模拟实验研究了地应力、孔隙压力和吸附相瓦斯对煤层瓦斯运移的影响,考证了达西定律的适用条件,实测到煤体吸附瓦斯后所产生的附加膨胀应力。作者确立了包括地应力、孔隙压力及克林伯格效应的煤层瓦斯运移本构方程,并分析了煤层在给定应力和给定变形条件下的瓦斯运移特点。
This paper studies the effects of ground stress, pore gas pressure and adsorped methane on methane transport in coal seams, and researches into the applicability of Darcy's law to methane transport. The additional expansion stress of coal induced by adsorped methane is measured. The paper establishes the constitutive equation of methane transport, taking ground stress, pore gas pressure and Klinkenburg's effects into consideration .The features of methane transport under the condition of determined stress or strain have been analyzed.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1991年第3期55-61,共7页
Journal of China University of Mining & Technology
基金
煤炭自然科学基金资助项目
关键词
煤层
瓦斯
运移
物理模拟
理论分析
methane transport, constitutive equation, effective stress, expansion stress
