SEABED INSTABILITY AROUND CAISSON  BREAKWATERS

Gerardo Duran; Juan Manuel Mayoral; Edgar Mendoza; Rodolfo Silva

doi:10.9753/icce.v33.posters.13

No. 33 (2012), Posters

No. 33 (2012)

SEABED INSTABILITY AROUND CAISSON BREAKWATERS

Posters

https://doi.org/10.9753/icce.v33.posters.13

Published 2012-10-11

Gerardo Duran⁺⁻
Juan Manuel Mayoral⁺⁻
Edgar Mendoza⁺⁻
Rodolfo Silva⁺⁻

Gerardo Duran

Engineering Institute (UNAM)

Juan Manuel Mayoral

Engineering Institute (UNAM)

Edgar Mendoza

Engineering Institute (UNAM)

Rodolfo Silva

Engineering Institute (UNAM)

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Keywords

seabed
liquefaction
breakwaters

How to Cite

Duran, G., Mayoral, J. M., Mendoza, E., & Silva, R. (2012). SEABED INSTABILITY AROUND CAISSON BREAKWATERS. Coastal Engineering Proceedings, 1(33), posters.13. https://doi.org/10.9753/icce.v33.posters.13

Abstract

A sensibility numerical study, considering the soil conditions found at Frontera Port in Tabasco, Mexico was conducted to identify the variables that govern the response of a seabed-foundation-structure system subject to wave loading. Among all the possible causes of instability, this study deals only with those associated with liquefaction failure of silty-sands due to cyclic shear stresses generated by regular waves. This research was prompted by the accidents that have occurred near Frontera Port, the most serious of which took place in October 2007 when the Usumacinta oil platform settled, causing 21 fatalities. Previous analysis of this accident (Leis, et al, 2007) suggested that the platform did not present any structural failure and that the accident was a result of an unexpected behavior of the seabed; probably liquefaction. In order to offer results regarding coastal protection activities in the study area, the analysis presented here was developed simulating a vertical breakwater similar to that constructed in 2001 at Barcelona instead of the oil platform. Puzrin, et al, 2009 report that in November 2001 four caissons of this breakwater failed due to seabed liquefaction. The adaptation of the design of the vertical breakwater to the study area conditions was estimated by means of the Goda, 1985 formula.

https://doi.org/10.9753/icce.v33.posters.13

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References

-Brebner, A. and Donnelly, D., 1962. "Laboratory Study of Rubble Foundations for Vertical Breakwaters." Proc. 8 th ICCE. New Mexico City, pp. 406-429.

-Goda, Y. 1973. "A New Method of Wave Pressure Calculation for the Design of Composite Breakwater." Rept. Port and Harbour Research Institute, Vol. 12

No. 3, pp. 31-70 (in Japanese); Proc. 14th ICCE 1974, Copenhagen, Denmark, pp. 1702-1720.

-Leis, B., et al. 2007. Root Cause Analysis of the Usumacinta-KAB-101 Incident, Battelle's Energy Systems, Columbus, OH,USA.

-Puzrin, A.M., Alonso, E.E. and Pinyol, N. (2010), "Geomechanics of Failures", Springer, Amsterdam, pp. 87-146 pp.

-Ruiz, G., et al. 2008. Atlas del clima marítimo. XXIII Congreso Latinoamericano de Hidráulica. Cartagena de Indias, Colombia, septiembre 2008, 15 pp (CD

Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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SEABED INSTABILITY AROUND CAISSON BREAKWATERS

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