摘要
通过天然裂隙的渗透实验，揭示了三维应力作用下天然裂隙渗流规律，建立了等效法向应力σｎｅ作用下裂隙闭合量Δｂ与渗透系数ｋｆ，σｎｅ与Δｂ的关系式，经过与修正立方定律进行比较，说明所揭示规律的正确性，同时对高应力状态下渗透性态的转化作了初步探讨。
On the basis of an experimental study, a permeability law of natural fracture under 3D stresses is developed. The relations between fracture closure b and permeability coefficient kf, equivalent normal stress ne and b are also formed. Compared to the modified cub law, the permeability law is proved reasonability. The change of permeability characteristics under high stresses is discussed primarily.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
1999年第2期133-136,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
国家杰出青年科学基金
关键词
裂隙
渗透系数
等效法向应力
闭合量
渗流规律
fracture, permeability coefficient, equivalent normal stress, fracture closure
