ARMOR POROSITY AND HYDRAULIC STABILITY OF MOUND BREAKWATERS
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ARMOR POROSITY AND HYDRAULIC STABILITY OF MOUND BREAKWATERS (2-page abstract)

Keywords

mound breakwater
armor porosity
packing density
armor damage
armor unit
cubic block.

How to Cite

Medina, J. R., Pardo, V., Molines, J., & Gomez-Martin, M. E. (2014). ARMOR POROSITY AND HYDRAULIC STABILITY OF MOUND BREAKWATERS. Coastal Engineering Proceedings, 1(34), structures.11. https://doi.org/10.9753/icce.v34.structures.11

Abstract

Armor porosity significantly affects construction costs and hydraulic stability of mound breakwaters; however, most hydraulic stability formulas do not include armor porosity or packing density as an explicative variable. 2D hydraulic stability tests of conventional randomly-placed double-layer cube armors with different armor porosities are analyzed. The stability number showed a significant 1.2 power relationship with the packing density, similar to what has been found in the literature for other armor units; thus, the higher the porosity, the lower the hydraulic stability. To avoid uncontrolled model effects, the packing density should be routinely measured and reported in small-scale tests and monitored at prototype scale.
https://doi.org/10.9753/icce.v34.structures.11
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