PHYSICAL EVALUATION OF THE HYDRODYNAMIC STABILITY OF AN ECO-ENGINEERED ARMOURING UNIT

Jorge Gutiérrez Martínez; Maor Bezner; Auke Molenkamp; Jeroen v.d. Bos; Bas Hofland; Philippe Leblanc; Andrew Rella; Yaeli Rosenberg; Ido Sella

PHYSICAL EVALUATION OF THE HYDRODYNAMIC STABILITY OF AN ECO-ENGINEERED ARMOURING UNIT

Jorge Gutiérrez Martínez
, Maor Bezner
, Auke Molenkamp
, Jeroen v.d. Bos
, Bas Hofland
, Philippe Leblanc
, Andrew Rella
, Yaeli Rosenberg
, Ido Sella

ECOncrete Tech LTD
Delft University of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

ECOncrete^®'s Coastalock is an ecologically designed armour unit, providing an alternative and/or a complement to traditional armour layers with ecologically enhanced armouring that provides shoreline stabilization, while also creating well-defined local ecosystems that mimic natural rock pools. The 2D physical model tests performed at TU Delft focused on the stability, reflection and overtopping of a slope with regularly placed single layer Coastalock armour. The 2V:3H slope had an impermeable core, no wave breaking on the foreshore and no rock toe. The stability was seen to double, with stability number Ns (Ns= Hs/ΔDn50) increasing from roughly 2 to 4 and above, by increasing the porosity between the blocks from spacing the units from 0% to 25%. So less concrete use led to more stability. The mean overtopping discharge could be characterized by a roughness factor of gamma_f = 0.610 (for 25% spacing). A key goal of the Coastalock development is to demonstrate that with the use of innovative eco-engineered armour unit design it is now possible to add ecological considerations into the design process to promote biodiversity and provide ecosystem services, achieving both structural and ecological goals.

Original language	English
Title of host publication	Proceedings of the Coastal Engineering Conference
Editors	Daniel Cox
Publisher	American Society of Civil Engineers (ASCE)
Edition	37
ISBN (Electronic)	9780989661164
State	Published - 1 Sep 2023
Externally published	Yes
Event	37th International Conference on Coastal Engineering, ICCE 2022 - Sydney, Australia Duration: 4 Dec 2022 → 9 Dec 2022

Publication series

Name	Proceedings of the Coastal Engineering Conference
Number	37
ISSN (Print)	0161-3782

Conference

Conference	37th International Conference on Coastal Engineering, ICCE 2022
Country/Territory	Australia
City	Sydney
Period	4/12/22 → 9/12/22

Bibliographical note

Publisher Copyright:
© 2023 American Society of Civil Engineers (ASCE). All rights reserved.

Funding

We would like to thank ECOncrete co-Founder Dr. Shimrit Perkol-Finkel (1975-2021) for her perseverance, vision, and guidance.

Keywords

Nature Inclusive Design (NID)
biodiversity
bioenhancing concrete
coastal protection
ecological engineering
marine habitat
physical modelling
single layer armour unit

Cite this

Martínez, J. G., Bezner, M., Molenkamp, A., v.d. Bos, J., Hofland, B., Leblanc, P., Rella, A., Rosenberg, Y., & Sella, I. (2023). PHYSICAL EVALUATION OF THE HYDRODYNAMIC STABILITY OF AN ECO-ENGINEERED ARMOURING UNIT. In D. Cox (Ed.), Proceedings of the Coastal Engineering Conference (37 ed.). (Proceedings of the Coastal Engineering Conference; No. 37). American Society of Civil Engineers (ASCE).

@inproceedings{dbb20d7d578049d090633ac3f8e28825,

title = "PHYSICAL EVALUATION OF THE HYDRODYNAMIC STABILITY OF AN ECO-ENGINEERED ARMOURING UNIT",

abstract = "ECOncrete{\textregistered}'s Coastalock is an ecologically designed armour unit, providing an alternative and/or a complement to traditional armour layers with ecologically enhanced armouring that provides shoreline stabilization, while also creating well-defined local ecosystems that mimic natural rock pools. The 2D physical model tests performed at TU Delft focused on the stability, reflection and overtopping of a slope with regularly placed single layer Coastalock armour. The 2V:3H slope had an impermeable core, no wave breaking on the foreshore and no rock toe. The stability was seen to double, with stability number Ns (Ns= Hs/ΔDn50) increasing from roughly 2 to 4 and above, by increasing the porosity between the blocks from spacing the units from 0\% to 25\%. So less concrete use led to more stability. The mean overtopping discharge could be characterized by a roughness factor of gamma\_f = 0.610 (for 25\% spacing). A key goal of the Coastalock development is to demonstrate that with the use of innovative eco-engineered armour unit design it is now possible to add ecological considerations into the design process to promote biodiversity and provide ecosystem services, achieving both structural and ecological goals.",

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author = "Mart{\'i}nez, \{Jorge Guti{\'e}rrez\} and Maor Bezner and Auke Molenkamp and \{v.d. Bos\}, Jeroen and Bas Hofland and Philippe Leblanc and Andrew Rella and Yaeli Rosenberg and Ido Sella",

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year = "2023",

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series = "Proceedings of the Coastal Engineering Conference",

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Martínez, JG, Bezner, M, Molenkamp, A, v.d. Bos, J, Hofland, B, Leblanc, P, Rella, A, Rosenberg, Y & Sella, I 2023, PHYSICAL EVALUATION OF THE HYDRODYNAMIC STABILITY OF AN ECO-ENGINEERED ARMOURING UNIT. in D Cox (ed.), Proceedings of the Coastal Engineering Conference. 37 edn, Proceedings of the Coastal Engineering Conference, no. 37, American Society of Civil Engineers (ASCE), 37th International Conference on Coastal Engineering, ICCE 2022, Sydney, Australia, 4/12/22.

PHYSICAL EVALUATION OF THE HYDRODYNAMIC STABILITY OF AN ECO-ENGINEERED ARMOURING UNIT. / Martínez, Jorge Gutiérrez; Bezner, Maor; Molenkamp, Auke et al.
Proceedings of the Coastal Engineering Conference. ed. / Daniel Cox. 37. ed. American Society of Civil Engineers (ASCE), 2023. (Proceedings of the Coastal Engineering Conference; No. 37).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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KW - coastal protection

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PHYSICAL EVALUATION OF THE HYDRODYNAMIC STABILITY OF AN ECO-ENGINEERED ARMOURING UNIT

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

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Cite this