A predictive model for scour depth of coastal building failures due to tsunamis

Mara Nicholas, Ravindra Jayaratne, Takayuki Suzuki, Tomoya Shibayama

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The 2011 Great East Japan Earthquake and Tsunami was one of the strongest earthquakes which generated a major tsunami in modern history. The tsunami disaster had an estimated cost of 16.9 trillion yen (US 217.3 billion) and affected the Coastal buildings, services, infrastructure and industrial sectors. Approximately 61% of damaged cost was from the building sector. A practical predictive scour depth model at seaward face was developed to highlight the scour failure of Coastal buildings in Miyagi, Fukushima and Iwate prefectures affected by the 2011 Great East Japan Earthquake and Tsunami. The predictive model for representative scour depth was developed in terms of various hydraulic, geometrical and soil properties affecting Coastal buildings. An analysis was undertaken to investigate the effectiveness of the authors' predictive scour model against the existing models. The results of the authors' proposed model suggested that the tsunami velocity played a significant role on tsunami-induced scour, other scour models such as Tonkin et al.'s model (2003) is reliant on the accuracy of sub models and hydrodynamic forces while the Colorado State University model as modified by Nadal et al. (2010) is reliant on the geometric parameter of the structure.

    Original languageEnglish
    Title of host publicationProceedings of the 35th International Conference on Coastal Engineering, ICCE 2016
    PublisherAmerican Society of Civil Engineers (ASCE)
    Volume35
    ISBN (Electronic)9780989661133
    Publication statusPublished - 2016
    Event35th International Conference on Coastal Engineering, ICCE 2016 - Antalya, Turkey
    Duration: 2016 Nov 172016 Nov 20

    Other

    Other35th International Conference on Coastal Engineering, ICCE 2016
    CountryTurkey
    CityAntalya
    Period16/11/1716/11/20

    Fingerprint

    Scour
    Tsunamis
    scour
    tsunami
    Earthquakes
    earthquake
    hydrodynamic force
    hydraulic property
    cost
    Disasters
    Costs
    disaster
    soil property
    Hydrodynamics
    Hydraulics
    infrastructure
    Soils

    Keywords

    • 2011 Great East Japan Earthquake and Tsunami
    • Coastal buildings
    • Predictive model
    • Representative scour depth.
    • Scour
    • Tsunami-induced

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Ocean Engineering
    • Oceanography

    Cite this

    Nicholas, M., Jayaratne, R., Suzuki, T., & Shibayama, T. (2016). A predictive model for scour depth of coastal building failures due to tsunamis. In Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016 (Vol. 35). American Society of Civil Engineers (ASCE).

    A predictive model for scour depth of coastal building failures due to tsunamis. / Nicholas, Mara; Jayaratne, Ravindra; Suzuki, Takayuki; Shibayama, Tomoya.

    Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016. Vol. 35 American Society of Civil Engineers (ASCE), 2016.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Nicholas, M, Jayaratne, R, Suzuki, T & Shibayama, T 2016, A predictive model for scour depth of coastal building failures due to tsunamis. in Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016. vol. 35, American Society of Civil Engineers (ASCE), 35th International Conference on Coastal Engineering, ICCE 2016, Antalya, Turkey, 16/11/17.
    Nicholas M, Jayaratne R, Suzuki T, Shibayama T. A predictive model for scour depth of coastal building failures due to tsunamis. In Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016. Vol. 35. American Society of Civil Engineers (ASCE). 2016
    Nicholas, Mara ; Jayaratne, Ravindra ; Suzuki, Takayuki ; Shibayama, Tomoya. / A predictive model for scour depth of coastal building failures due to tsunamis. Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016. Vol. 35 American Society of Civil Engineers (ASCE), 2016.
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