PREDICTING THE RESHAPING OF TEMPORARILY EXPOSED BUNDS WITH XBEACH-G

  • Arjan Mol
  • Ton van der Plas
  • Robert McCall
  • Merel Kroeders

Abstract

During coastal construction works, damages often occur to temporary constructions consisting of fine and often wide graded rock material due to exposure to waves. Examples of vulnerable structures are the bunds that are constructed to serve as the core for a breakwater before placement of the filter and armour layers, or as temporary defense during reclamation works. Such structures - mostly built in bulk - are temporarily exposed to wave conditions, and will reshape depending on the duration of exposure and the prevailing hydraulic conditions. For the exposed breakwater core, it is important to have an idea on how much of the placed material will be moved outside the perimeter, and thus how much material needs to be rehandled before the cover layers can be constructed. For temporary defense works, it is important to know how much material needs to be placed initially in order to offer sufficient protection for a certain period. For both cases, an accurate prediction of the reshaping of such structures is necessary.

References

G. Masselink, R. McCall, T. Poate, P. van Geer Modelling storm response on gravel beaches using XBeach-G. Proc. ICE Marit. Eng., 167 (18) (2014), pp. 173-191

McCall, Masselink, Poate, Roelvink, Almeida, Davidson, Russel (2014): Modelling storm hydrodynamics on gravel beaches with XBeach-G, Coastal Engineering, ELSEVIER, vol. 103, pp. 52-66.

McCall, Masselink, Poate, Roelvink, Almeida (2015): Modelling the morphodynamics of gravel beaches during storms with XBeach-G. Coastal Engineering, ELSEVIER, vol. 91, pp. 231-250.

Van der Meer (1988): Rock slopes and gravel beaches under wave attack, PhD thesis, Delft University of Technology.

Van der Plas, van der Meer, Dominguez, Bijl (2017): Stability of very wide graded material designed as breakwater core, under wave attack, ICE Conference 2017, Liverpool.

Published
2018-12-30
How to Cite
Mol, A., van der Plas, T., McCall, R., & Kroeders, M. (2018). PREDICTING THE RESHAPING OF TEMPORARILY EXPOSED BUNDS WITH XBEACH-G. Coastal Engineering Proceedings, 1(36), sediment.31. https://doi.org/10.9753/icce.v36.sediment.31