摘要
对不同围压状态下不同损伤程度煤岩的渗透特性进行了试验研究,研究结果表明:煤岩渗透性与损伤程度关系密切,其渗透性演化规律与损伤演化规律一致;围压对煤岩的渗透率影响较大,损伤程度相同时,围压越大煤岩渗透率越小。
The experimental study was carried out on the permeability of coal rock under different damage conditions and different confining pressures. The results show that the permeability of coal rock is closely related to its damage degree,the permeability evolution law and damage evolution law of coal rock is basically the same,and the confining pressure greatly influences the permeability of coal rock,such as,at the same damage degree,the larger the confining pressure,the smaller the permeability of coal rock.
出处
《陕西煤炭》
2015年第3期16-18,共3页
Shaanxi Coal
关键词
煤岩
渗透率演化
损伤演化
渗透-应力耦合
coal rock
permeability evolution
damage evolution
permeability-stress coupling
