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Breakwater Repair: Monitoring, Modelling, and Construction

Pillay, S / Phelp, D / Bartels, A

The trunk section of the south breakwater, at the entrance to the Port of Richards Bay, has suffered some damage since its construction which was completed in 1976. This paper briefly discusses the changes in the design conditions as a result of sand-trap dredging off the breakwater, the annual photographic monitoring results showing the excessive rates of damage, and the model testing of various repair options, using 20t and 30t dolosse. Both 2D flume and 3D basin model tests were carried out at various scales, with fixed and movable bed models. Finally the construction of the optimal repair, carried out in 1997/98, using a heavy duty mobile crane (with 48m boom reach) and DGPS positioning, is described.

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Breakwater Repair: Monitoring, Modelling, and Construction

Pillay, S / Phelp, D / Bartels, A

The trunk section of the south breakwater, at the entrance to the Port of Richards Bay, has suffered some damage since its construction which was completed in 1976. This paper briefly discusses the changes in the design conditions as a result of sand-trap dredging off the breakwater, the annual photographic monitoring results showing the excessive rates of damage, and the model testing of various repair options, using 20t and 30t dolosse. Both 2D flume and 3D basin model tests were carried out at various scales, with fixed and movable bed models. Finally the construction of the optimal repair, carried out in 1997/98, using a heavy duty mobile crane (with 48m boom reach) and DGPS positioning, is described.

Breakwater Repair: Monitoring, Modelling, and Construction

Pillay, S / Phelp, D / Bartels, A

The trunk section of the south breakwater, at the entrance to the Port of Richards Bay, has suffered some damage since its construction which was completed in 1976. This paper briefly discusses the changes in the design conditions as a result of sand-trap dredging off the breakwater, the annual photographic monitoring results showing the excessive rates of damage, and the model testing of various repair options, using 20t and 30t dolosse. Both 2D flume and 3D basin model tests were carried out at various scales, with fixed and movable bed models. Finally the construction of the optimal repair, carried out in 1997/98, using a heavy duty mobile crane (with 48m boom reach) and DGPS positioning, is described.

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Title:

Breakwater Repair: Monitoring, Modelling, and Construction

Contributors:

Pillay, S (author) / Phelp, D (author) / Bartels, A (author)

Conference:

26th International Conference on Coastal Engineering

Published in:

Coastal Engineering 1998 ; 1775-1788

Publication date:

1999-04-26

ISBN:

9780784404119 , 978-0-7844-7950-6

DOI:

https://doi.org/10.1061/9780784404119.132

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Flumes , Model tests , Coastal engineering , Construction , Coastal processes , Sediment transport , Breakwaters , Waves , Design , Rehabilitation , Coastal structures , Models , Monitoring

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