Laboratory assessment of the equivalent apertures of a rock fracture
Laboratory assessment of the equivalent apertures of a rock fracture
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岩石裂隙等效孔径的实验室评估
DOI：
10.1029/93gl01384
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发表时间：
1993
影响因子：
5.2
通讯作者：
D. Elsworth
中科院分区：
文献类型：
--
作者：
A. Piggott;D. Elsworth
给出了花岗岩天然裂隙的水力、电学和示踪试验结果。裂缝的水力和电气孔相似，表明裂缝面对面接触最少。示踪剂孔径超过水力孔径，表明输运速率小于根据水力孔径预测的速率。示踪剂输送的数值模拟表明，裂缝内的输送不能用平行平板流动来解释，而且局部输送的速率超过了示踪剂孔径定义的总速率。
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.