LABORATORY ASSESSMENT OF THE EQUIVALENT APERTURES OF A ROCK FRACTURE

被引:36
|
作者
PIGGOTT, AR [1 ]
ELSWORTH, D [1 ]
机构
[1] PENN STATE UNIV,DEPT MINERAL ENGN,UNIV PK,PA 16802
关键词
D O I
10.1029/93GL01384
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Hydraulic, electrical, and tracer test results are presented for a natural fracture in granite. The hydraulic and electrical apertures of the fracture are similar and suggest minimal fracture surface-to-surface contact. Tracer aperture exceeds hydraulic aperture indicating transport at a rate less than that predicted on the basis of hydraulic aperture. Numerical simulation of tracer transport reveals that transport within the fracture is not explicable in terms of parallel plate flow and that transport occurs locally at rates in excess of the overall rate defined by tracer aperture.
引用
收藏
页码:1387 / 1390
页数:4
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