The design of artificial reefs must be based on the criteria of both durability and serviceability. In this respect, the seabed subsidence rate related to the weight of the reefs and of their foundation system should be limited. The horizontal drift of the reefs during their life should be small too. In this study, pertaining to the behavior of artificial reefs made of microsilica concrete and realized with foundations in bamboo near the international airport of Hong Kong, 1-year monitoring data and calculations of reef foundation settlements are shown and discussed to assess the performance of the adopted mixed foundation and to deduce the nature of the long-term subsidence. The subsidence related to the settlements of the foundations was monitored using a Multibeam Echo Sounder System. It was found that the observed subsidence rate cannot be justified by the primary consolidation of the soils forming the seabed. Indeed, secondary consolidation seems to play an important role. Overall, after one year of service, the artificial reefs are considered to be effective in terms of limitation of both subsidence and drift.

Subsidence of Artificial Reefs with Bamboo Foundations on a Soft Seabed / Dini, Enrico; Nuzzolese, Mario; Cafaro, Francesco; di Lernia, Annamaria; Gadaleta, Alessandra; Sollecito, Francesca. - In: APPLIED SCIENCES. - ISSN 2076-3417. - ELETTRONICO. - 14:2(2024). [10.3390/app14020720]

Subsidence of Artificial Reefs with Bamboo Foundations on a Soft Seabed

Cafaro, Francesco
;
di Lernia, Annamaria;
2024-01-01

Abstract

The design of artificial reefs must be based on the criteria of both durability and serviceability. In this respect, the seabed subsidence rate related to the weight of the reefs and of their foundation system should be limited. The horizontal drift of the reefs during their life should be small too. In this study, pertaining to the behavior of artificial reefs made of microsilica concrete and realized with foundations in bamboo near the international airport of Hong Kong, 1-year monitoring data and calculations of reef foundation settlements are shown and discussed to assess the performance of the adopted mixed foundation and to deduce the nature of the long-term subsidence. The subsidence related to the settlements of the foundations was monitored using a Multibeam Echo Sounder System. It was found that the observed subsidence rate cannot be justified by the primary consolidation of the soils forming the seabed. Indeed, secondary consolidation seems to play an important role. Overall, after one year of service, the artificial reefs are considered to be effective in terms of limitation of both subsidence and drift.
2024
Subsidence of Artificial Reefs with Bamboo Foundations on a Soft Seabed / Dini, Enrico; Nuzzolese, Mario; Cafaro, Francesco; di Lernia, Annamaria; Gadaleta, Alessandra; Sollecito, Francesca. - In: APPLIED SCIENCES. - ISSN 2076-3417. - ELETTRONICO. - 14:2(2024). [10.3390/app14020720]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/266221
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