Numerical modeling of skirted foundation in alternating layers of sand and clay
- Authors
- Park, Jeong-Seon; Park, Duhee; Jang, Hwa-Sup; Yoon, Se-Woong
- Issue Date
- Jun-2015
- Publisher
- International Society of Offshore and Polar Engineers
- Keywords
- Alternating layers; Bearing capacity; Numerical modeling; Skirted foundation
- Citation
- Proceedings of the International Offshore and Polar Engineering Conference, v.2015-January, pp.658 - 661
- Indexed
- SCOPUS
- Journal Title
- Proceedings of the International Offshore and Polar Engineering Conference
- Volume
- 2015-January
- Start Page
- 658
- End Page
- 661
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/157033
- ISSN
- 1098-6189
- Abstract
- Estimation of bearing capacity is critical in the design of skirted foundations. Empirical formula and closed form solutions for skirted foundations in uniform profiles composed of sand or clay have been proposed. However, the capacity of foundations in alternating layers of sand and clay is not well defined. We perform a series of three-dimensional elasto-plastic finite element analyses on such profiles and calculate the bearing capacity of skirted foundations. It is shown that assuming a uniform profile is not appropriate. Even a thin layer of clay below the tip of the skirted foundation can significantly reduce the capacity of the foundation. We present predictive equations and charts for determining the vertical bearing capacities of foundations in heterogeneous profiles.
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