Abstract
Foundations on subsoil of many properly designed caisson breakwaters, in the last several decades, have collapsed or suffered severe damage. Many geotechnical failure modes may take place. In order to have a good knowledge of this problem, it is necessary to study the effect of subsoil properties and the possible failure modes during wave attack in the stability analysis of caisson breakwater. Traditionally, the stability analysis is performed in a too simplistic way, by assuming the subsoil to be single layer and linear elastic. In this paper, the foundation is modeled as multi-layer soil and presents elasto-plastic behavior. By using the geotechnical software FLAC3D, the effect of surface soil properties and the failure modes of caisson breakwaters under the excitation of wave loads are discussed.
It is concluded that the caisson breakwater constructed on soft soil tends overturned failure mode, and the rotation center is 1/8 caisson width positive away from the middle point along the bottom edges. Moreover, the anti-overturning capacity increases with stiffer surface soil. Those results can provide a theoretical basis for the practical design of caisson breakwater.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Martinelli, L., Voortman, H.G., Lamberti, A., et al.: Hazard analysis of dynamically loaded caisson breakwaters. In: Proceedings of 27th International Conference on Coastal Engineering, Sydney, Australia, pp. 1636–1649 (2000)
Wang, Y.Z., Zhou, Y.L., Hua, L.N.: Dynamic analysis of caisson breakwater under various breaking wave impact forces. China Harb. Eng. 3, 1–4 (2004)
De Groot, M.B., Kudella, M., Oumeraci, H.: Liquefaction phenomena underneath marine gravity structures subjected to wave loads. J. Waterw. Port Coast. Ocean Eng. 132(4), 325–335 (2006)
Xiao, Z., Wang, Y., Ji, C., Li, Y., Xie, S.: Finite element numerical analysis of stability of cylindrical breakwater. China Civ. Eng. J. 42(07), 119–125 (2009)
Wang, Y., Chi, L., Gong, W.: A model for analysis of vibration-sliding motion of upright breakwater. Acta Oceanol. Sinica 20(02), 128–132 (1998)
Wang, Y.Z., Long, Y.C., Wang, Y.C.: New types of port engineering structures on soft ground and related problems. J. Waterw. Harb. 35(04), 404–414 (2014)
Zhang, Q., Yin, J., Sun, X.: Research summary of soft clay softening mechanism under cyclic loading. J. Waterw. Harb. 35(04), 300–307 (2014)
Wang, Y., Yang, P., Sun, X., Cui, Y.: Research and application of strength weakening character of soft clay affected by cyclic loading under different influencing factors. J. Waterw. Harb. 36(02), 153–160 (2015)
Wang, Y., Ma, X., Ma, N.: Experimental study on variation law of soil indexes of soft clay under load action. J. Waterw. Harb. 36(04), 339–344 (2015)
Li, Y., Xiao, Z., Wang, Y., Li B., Wang, H., Zhang, Z.: Stability analysis of cylindrical foundation breakwater by considering cyclic weakening effect of soft base. Port Eng. Technol. 52(01), 26−29 + 54 (2015)
Wang, X., Yang, X., Zeng, X.: Seismic centrifuge modelling of suction bucket foundation for offshore wind turbine. Renewable Energy Part B 114, 1013–1022 (2017). ISSN 0960-1481
Zhang, P., Hu, R., Ding, H., Guo, Y., Xiong, K.: Comparative analysis of seepage field characteristics in bucket foundation with and without compartments. Ocean Eng. 143, 34–49 (2017). ISSN 0029-8018
Li, L., Li, J., Huang, J., Gao, F.P.: Bearing capacity of spudcan foundations in a spatially varying clayey seabed. Ocean Eng. 143, 97–105 (2017). ISSN 0029-8018
Li, H., Liu, H., Liu, S.: Dynamic analysis of umbrella suction anchor foundation embedded in seabed for offshore wind turbines. Geomech. Energy Environ. 10, 12–20 (2017). ISSN 2352-3808
Transportation Department of the People’s Republic of China: (JTS 154-1-2011) Standards for Design and Construction of Breakwater. China Communication Press, Beijing (2012)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Li, F., Wang, P., Guo, R. (2018). Stability Analysis of the Caisson Breakwater Founded on Multi-layer Elasto-Plastic Subsoil. In: Zhou, A., Tao, J., Gu, X., Hu, L. (eds) Proceedings of GeoShanghai 2018 International Conference: Fundamentals of Soil Behaviours. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0125-4_67
Download citation
DOI: https://doi.org/10.1007/978-981-13-0125-4_67
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-0124-7
Online ISBN: 978-981-13-0125-4
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)