Measuring the Permeability of Open-Framework Gravel
Article first published online: 29 JAN 2010
Copyright © 2010 The Author(s). Journal compilation © 2010 National Ground Water Association
Volume 48, Issue 4, pages 593–597, July/August 2010
How to Cite
Ferreira, J. T., Ritzi, R. W. and Dominic, D. F. (2010), Measuring the Permeability of Open-Framework Gravel. Groundwater, 48: 593–597. doi: 10.1111/j.1745-6584.2010.00675.x
- Issue published online: 22 JUN 2010
- Article first published online: 29 JAN 2010
- Received June 2009, accepted January 2010.
Open-framework gravel has permeability, k, above the measurement range of most laboratory constant-head permeameters because the head difference across the length of conventional permeameters is too small to be measured. Here we addressed the challenge of measuring the high k by using a 3 m long permeameter. The head difference over this length was of the order of 10−2 to 10−3 m, which we could measure to the nearest 10−5 m. We collected data over the range of linear, laminar flow to nonlinear, laminar flow to verify that k was measured using data collected within the Darcian regime. We measured k between 4000 and 100,000 Darcies among experiments using different sediments.