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http://dx.doi.org/10.14481/jkges.2017.18.8.5

Stiffness of Bucket Foundation in Sand  

Park, Jeongseon (Korea Hydro & Nuclear Power Central Research Institute (KHNP-CRI))
Park, Duhee (Department of Civil and Environmental Engineering, Hanyang University)
Yoon, Sewoong (Department of Civil and Environmental Engineering, Hanyang University)
Jang, Hwasup (Research center, Korea Register of Shipping)
Yoon, Jinam (Department of Civil and Environmental Engineering, Hanyang University)
Publication Information
Journal of the Korean GEO-environmental Society / v.18, no.8, 2017 , pp. 5-15 More about this Journal
Abstract
To perform an integrated load analysis carried out to evaluate the stability evaluation of wind turbine generators, the six degree-of-freedom stiffness matrix of foundation, which describes relationships between loads and displacement, is needed. Since the foundation stiffness should accurately reflect the shape of foundation and the condition of soil, it is necessary to calculate the stiffness of the bucket foundation that considers the elasto-plastic behavior of the soil. In this study, finite element analyses were performed for a range of soils and shapes of bucket foundations to estimate the foundation stiffness. Normalized stiffness curves are developed from respective numerical simulations. Proposed results are considered to be useful because they can be directly applied in the design.
Keywords
Bucket foundation; Nonlinear stiffness; Hardening soil model; Finite element analysis;
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Times Cited By KSCI : 3  (Citation Analysis)
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