Effect of Permeability on Stability of Rubble Bases
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 121, Issue 3
Abstract
The effect of permeability on the stability of homogeneous and multilayered rubble bases is investigated. The approach consists of theoretical modeling of the interaction of water waves with a caisson-type breakwater and its rubble foundation, and then employing predicted flow fields in a stability model to determine the required stone size. The permeability is shown to have significant effect on the stability. The results indicate that the stability increases with increasing the rubble-base permeability at intermediate water depths, and increases with decreasing the rubble-base permeability in shallow water. The armor-layer permeability has little effect on the stability at intermediate water depths, but in shallow water the permeability of the armor layer has little effect on the stability only for rubble bases of low core permeability. The significant effect of permeability on the stability implies a need for including permeability effects in hydraulic modeling. An analysis or scaling of experimental data without taking the effect of permeability into account may lead to confusing conclusions or just incorrect results, which is demonstrated on the basis of the laboratory results commonly applied in design.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Brebner, A., and Donnelly, P. (1962). “Laboratory study of rubble foundation for vertical breakwaters.”Proc., 8th Coast. Engrg. Conf., ASCE, New York, N.Y., 408–429.
2.
Ge, W., and Jensen, O. J. (1983). “Stability of rubble foundation for composite breakwaters.”Conf. on Coast. and Port Engrg. in Developing Countries, Sri Lanka.
3.
Hendar, P. A. (1960). “Stability of rock-fill breakwaters,” PhD thesis, Chalmers Univ. of Technol., Dept. of Hydr., Göteborg, Sweden.
4.
Hudson, R. Y.(1961). “Laboratory investigation of rubble mound breakwaters.”Trans. ASCE, 126(4), 492–541.
5.
Lean, G. H.(1967). “Théorie simplifiée des absorbeurs de houle perméables.”J. Hydr. Res., IAHR, 5(1), 15–30.
6.
McDougal, W. G., and Sulisz, W. (1990). “Wave interaction with rubble bases.”J. Coast. Res., Vol. 7, 139–147.
7.
Shore Protection Manual. (1984). Vol. 2, U.S. Army Corps of Engrs., Washington, D.C.
8.
Sulisz, W.(1985). “Wave reflection and transmission at permeable breakwater of arbitrary cross-section.”Coast. Engrg., 9(4), 371–386.
9.
Sulisz, W. (1992). “Numerical modelling of the stability of rubble bases.”Proc., 23rd Coast. Engrg. Conf., ASCE, New York, N.Y., 1799–1809.
10.
Sulisz, W.(1994). “Stability analysis for multilayered rubble bases.”J. Wtrwy., Port, Coast., and Oc. Engrg., ASCE, 120(3), 269–282.
11.
Sulisz, W., McDougal, W. G., and Sollitt, C. K.(1989). “Water wave interaction with rubble toe protection.”Oc. Engrg., 16(5/6), 463–473.
Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 121 • Issue 3 • May 1995
Pages: 162 - 166
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: May 1, 1995
Published in print: May 1995
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.