A COMPARATIVE STUDY ON THE STABILITY FORMULAS OF RUBBLE MOUND BREAKWATERS

Hasan Gokhan Guler, Aysen Ergin, Gulizar Ozyurt

Abstract


An example study showed that there may be 70% difference in armour stone weight when Van der Meer (1988) and Van Gent et al. (2004) formulas are applied as recommended by “The Rock Manual: The use of rock in hydraulic engineering” (2007) with specific design constraints. In this paper, questions arise in the application of these formulas and their dependence on certain design constraints given in literature as mentioned in “The Rock Manual: The use of Rock in hydraulic engineering” (2007) are discussed. Based on the results of this study, a new design flowchart that uses Van der Meer (1988) and Van Gent et al. (2004) formulations is proposed and tested by physical model experiments. Furthermore, a real case study in Aliaga, Izmir, Turkey is presented in order to indicate the importance of the new design flowchart.

Keywords


rubble-mound breakwaters; Van der Meer (1988) formula; Van Gent et al. (2004) formula

Full Text:

PDF

References


Battjes, J. A., Groenendijk, H. W. (2000) “Wave Height Distribution on Shallow Foreshores”, Coastal Engineering, Vol 40, No. 3, pp. 161-182.

CEM (2003), “Coastal Engineering Manual”, USACE, Vicksburg, Mississippi, USA.

CERC (1977), “Shore Protection Manual”, USACE, Vicksburg, Mississippi, USA.

CERC (1984), “Shore Protection Manual”, USACE, Vicksburg, Mississippi, USA.

Dingemans, M. (1987) “Verification of Numerical Wave Propagation Models with Laboratory Measurements, HISWA Verification in the Directional Wave Basin”, Technical Report H228, Part 1B, Appendices A-G, Delft Hydraulics, Delft.

Ergin, A., Ozhan, E. (1986) “Wave Hindcasting Studies and Determination of Design Wave Characteristics for 15 Regions – Final Report”, Middle East Technical University, Department of Civil Engineering, Ankara, Turkey (in Turkish).

Goda, Y. (2000) “Random Seas and Design of Maritime Structures”, Advanced Series on Ocean Engineering, Vol 15, World Scientific, Singapore.

Goda, Y., Suzuki, Y. (1976) “Estimation of Incident and Reflected Waves in Random Wave Experiments”, Proceedings of the 15th International Conference on Coastal Engineering, Honolulu, Hawaii, USA.

Guler, H. G. (2013) “A Comparative Study on Van der Meer (1988) and Van Gent et al (2004) Stability Formulae”, Proceedings of ASCE COPRI PORTS 2013, August 2013, Seattle, Washington, USA.

Guler, H. G. (2014) “A Comparative Study on Design of Rubble Mound Breakwaters”, MSc Thesis, Middle East Technical University, Ankara, Turkey.

The Rock Manual (2007) “The Use of Rock in Hydraulic Engineering”, CIRIA-CUR-CETMEF (C683).

Van der Meer, J. W. (1988) “Rock Slopes and Gravel Beaches under Wave Attack”, Ph. D. Thesis, Delft University, the Netherlands.

Van der Meer, J. W. (1990) “Extreme Shallow Water Conditions”, Report H198, Delft Hydraulics, Delft.

Van Gent, M. R. A., Smale, A. J., Kuiper, C. (2004) “Stability of Rock Slopes with Shallow Foreshores”, Proceedings of 4th International Coastal Structures Conference Portland, ASCE, Reston VA, USA.




DOI: https://doi.org/10.9753/icce.v34.structures.27