TY - GEN
T1 - Modeling of soil-structure interaction for reinforced breakwater foundation subjected to earthquake and tsunami loading
AU - Hazarika, H.
AU - Chaudhary, B.
AU - Nozu, A.
AU - Kohama, E.
AU - Suzuki, K.
AU - Murakami, A.
AU - Fujisawa, K.
N1 - Funding Information:
The authors express their deep gratitude for the financial support provided by the Japan Iron and Steel Federation under two different research grants: one for priority themes and the other for special objectives. The financial support towards the development and installation of hydraulic model testing apparatus was provided by Kyushu University under P & P research grant, for which the first author is greatly indebted. Special thanks go to Prof. R. Uzuoka, Dr. K. Ueda of Kyoto University, Japan and Dr. T. Tobita (formerly at Kyoto University and presently at Kansai University, Japan) for allowing the authors to use the centrifuge testing facilities of Disaster Prevention Research Institute (DPRI). Last but not the least, the first author also would like to acknowledge his former students Mr. K. Nishimura and Mr. Y. Makimoto for performing various tests and analyzing the data.
Publisher Copyright:
© 2019 Associazione Geotecnica Italiana, Rome, Italy.
PY - 2019
Y1 - 2019
N2 - This paper describes the soil-structure interaction behavior of a new reinforcing technique for breakwater foundation against earthquake and tsunami induced damage. The technique involves the use of gabion on the top of rubble mound, reinforcing the foundation soil with steel sheet piles, and the use of sealing material between the sheet piles and breakwater. The effectiveness of the proposed technique and the soil structure interaction during earthquake and tsunami loading were evaluated through physical and numerical modeling. As part of the physical modeling for such soil-structure interaction problem, a series of 1g shaking table tests and centrifuge model tests were performed. In addition, a hydraulic model testing apparatus was developed, which can simulate the soil-structure interaction during tsunami overflow, the resulting seepage as well as the scouring. Numerical simulation was also performed for evaluating the effect of tsunami overflow. Soil-structure interaction behaviors were made clear through comparisons of conventional foundation and reinforced foundation models.
AB - This paper describes the soil-structure interaction behavior of a new reinforcing technique for breakwater foundation against earthquake and tsunami induced damage. The technique involves the use of gabion on the top of rubble mound, reinforcing the foundation soil with steel sheet piles, and the use of sealing material between the sheet piles and breakwater. The effectiveness of the proposed technique and the soil structure interaction during earthquake and tsunami loading were evaluated through physical and numerical modeling. As part of the physical modeling for such soil-structure interaction problem, a series of 1g shaking table tests and centrifuge model tests were performed. In addition, a hydraulic model testing apparatus was developed, which can simulate the soil-structure interaction during tsunami overflow, the resulting seepage as well as the scouring. Numerical simulation was also performed for evaluating the effect of tsunami overflow. Soil-structure interaction behaviors were made clear through comparisons of conventional foundation and reinforced foundation models.
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M3 - Conference contribution
AN - SCOPUS:85081175373
SN - 9780367143282
T3 - Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019
SP - 221
EP - 238
BT - Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019
A2 - Silvestri, Francesco
A2 - Moraci, Nicola
PB - CRC Press/Balkema
T2 - 7th International Conference on Earthquake Geotechnical Engineering, ICEGE 2019
Y2 - 17 January 2019 through 20 January 2019
ER -