摘要
为了解决三亚某大型洞库防渗问题,文中利用X射线、电镜扫描分析了该洞库围岩的矿物成分和微观结构.通过高低渗透率仪测试了该洞库围岩的气相渗透率,同时利用地层损害试验仪测试了其围岩的液相渗透率.结果表明:洞库围岩石英含量较高,多呈他形晶充填于矿物的间隙中,并且交接紧密;完整岩石渗透率较低,其中气相渗透率是液相渗透率的11.4倍;岩石的渗透通道是分层次的,低层次渗透通道的贡献也不能忽略.
To satisfy the need of cavern water-proof, the minerals component and microstructure of rock are tested by XRD and SEM. The rock permeability properties of different medium are analyzed by using Air-Permeability Measurement Cell and Formation Damage Evaluation System. The result shows that the rock contains a lot of quartz. The quartz fill among other minerals. The rate of permeability of intact rock is little. The gas rate of permeability of rock is 11.4 times of the liquid's. The gaps of permeability of rock have different level. The capability of low level gaps cannot neglect.
出处
《中原工学院学报》
CAS
2006年第3期1-3,共3页
Journal of Zhongyuan University of Technology
基金
国家自然科学基金项目(50490270)
关键词
微观结构
渗透试验
孔隙度
围压
microstructure
permeability experiment
porosity
confining pressure