Stability of Rubble Mound Breakwaters—A Study of the Notional Permeability Factor, Based on Physical Model Tests
| Autor: | Thomas Lykke Andersen, Mads Røge Eldrup, Hans F. Burcharth |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:Hydraulic engineering
010504 meteorology & atmospheric sciences Rubble mound breakwaters Armour Geography Planning and Development 0207 environmental engineering 02 engineering and technology Aquatic Science 01 natural sciences Biochemistry lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 Empirical formula Rock armor stability Geotechnical engineering notional permeability factor Notional amount Notional permeability factor 020701 environmental engineering Stability Model 0105 earth and related environmental sciences Water Science and Technology lcsh:TD201-500 Breakwater Permeability (earth sciences) Damage breakwater Material properties damage Geology rock armor stability |
| Zdroj: | Eldrup, M R, Andersen, T L & Burcharth, H F 2019, ' Stability of Rubble Mound Breakwaters—A Study of the Notional Permeability Factor, Based on Physical Model Tests ', Water, vol. 11, no. 5, 934 . https://doi.org/10.3390/w11050934 Water, Vol 11, Iss 5, p 934 (2019) Water Volume 11 Issue 5 |
| DOI: | 10.3390/w11050934 |
| Popis: | The Van der Meer formulae for quarry rock armor stability are commonly used in breakwater design. The formulae describe the stability as a function of the wave characteristics, number of waves, front slope angle and rock material properties. The latter includes a so-called notional permeability factor characterizing the permeability of the structure. Based on armor stability model tests with three armor layer compositions, Van der Meer determined three values of the notional permeability. Based on numerical model results he added for a typical layer composition one more value. Based on physical model tests, the present paper provides notional permeability factors for seven layer compositions of which two correspond to the compositions tested by Van der Meer. The results of these two layer compositions are within the scatter of the results by Van der Meer. To help determination of the notional permeability for non-tested layer compositions, a simple empirical formula is presented. |
| Databáze: | OpenAIRE |
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