Scour hole development in tidal areas with a heterogenous subsoil lithology

hilde koopmans; Y Huismans; Wim Uijttewaal

Abstract

Scale model tests show that the natural tendency of scour holes in heterogeneous subsoil and unidirectional flow is to grow in downstream direction, with a stable upstream slope and undermining of the downstream edge. The initial depth development is fast, gradually decreasing towards an equilibrium depth. Field data of two recently developed scour holes show for one case a similar development. For the other case, scour hole growth mainly proceeds in the dominant upstream direction. Differences may be linked to the presence of tide, horizontal heterogeneity of the poorly erodible layer, the influence of a nearby confluence or scaling effects. This will be further investigated

Original language	English
Pages	285
Publication status	Published - 2017
Event	10th Symposium on River coastal and estuarine morphodynamics: Back to Italy - Trento - Padova, Italy Duration: 15 Sept 2017 → 22 Sept 2017 Conference number: 10 http://cirefluvial.com/eventos_ver.php?id=246

Conference

Conference	10th Symposium on River coastal and estuarine morphodynamics
Abbreviated title	RCEM2017
Country/Territory	Italy
City	Trento - Padova
Period	15/09/17 → 22/09/17
Internet address	http://cirefluvial.com/eventos_ver.php?id=246

Bibliographical note

Host publication:The 10th Symposium on River, Coastal and Estuarine Morphodynamics, Trento-Padova, 15-22 September 2017, Book of Abstracts

Editors: Lanzoni, S., Redolfi, M., Zolezzi, G.
ISBN (Print): 978-88-8443-752-5

Cite this

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title = "Scour hole development in tidal areas with a heterogenous subsoil lithology",

abstract = "Scale model tests show that the natural tendency of scour holes in heterogeneous subsoil and unidirectional flow is to grow in downstream direction, with a stable upstream slope and undermining of the downstream edge. The initial depth development is fast, gradually decreasing towards an equilibrium depth. Field data of two recently developed scour holes show for one case a similar development. For the other case, scour hole growth mainly proceeds in the dominant upstream direction. Differences may be linked to the presence of tide, horizontal heterogeneity of the poorly erodible layer, the influence of a nearby confluence or scaling effects. This will be further investigated",

author = "hilde koopmans and Y Huismans and Wim Uijttewaal",

note = "Host publication:The 10th Symposium on River, Coastal and Estuarine Morphodynamics, Trento-Padova, 15-22 September 2017, Book of Abstracts Editors: Lanzoni, S., Redolfi, M., Zolezzi, G. ISBN (Print): 978-88-8443-752-5; 10th Symposium on River coastal and estuarine morphodynamics : Back to Italy, RCEM2017 ; Conference date: 15-09-2017 Through 22-09-2017",

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TY - CONF

T1 - Scour hole development in tidal areas with a heterogenous subsoil lithology

AU - koopmans, hilde

AU - Huismans, Y

AU - Uijttewaal, Wim

N1 - Conference code: 10

PY - 2017

Y1 - 2017

N2 - Scale model tests show that the natural tendency of scour holes in heterogeneous subsoil and unidirectional flow is to grow in downstream direction, with a stable upstream slope and undermining of the downstream edge. The initial depth development is fast, gradually decreasing towards an equilibrium depth. Field data of two recently developed scour holes show for one case a similar development. For the other case, scour hole growth mainly proceeds in the dominant upstream direction. Differences may be linked to the presence of tide, horizontal heterogeneity of the poorly erodible layer, the influence of a nearby confluence or scaling effects. This will be further investigated

AB - Scale model tests show that the natural tendency of scour holes in heterogeneous subsoil and unidirectional flow is to grow in downstream direction, with a stable upstream slope and undermining of the downstream edge. The initial depth development is fast, gradually decreasing towards an equilibrium depth. Field data of two recently developed scour holes show for one case a similar development. For the other case, scour hole growth mainly proceeds in the dominant upstream direction. Differences may be linked to the presence of tide, horizontal heterogeneity of the poorly erodible layer, the influence of a nearby confluence or scaling effects. This will be further investigated

M3 - Abstract

SP - 285

T2 - 10th Symposium on River coastal and estuarine morphodynamics

Y2 - 15 September 2017 through 22 September 2017

ER -

Scour hole development in tidal areas with a heterogenous subsoil lithology

Abstract

Conference

Bibliographical note

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Cite this