Abstract
In this study a stochastic approach is conducted to obtain the horizontal and rotational stiffness of an offshore monopile foundation. A nonlinear stochastic p-y curve is integrated into a finite element scheme for calculation of the monopile response in over-consolidated clay having spatial undrained shear strength. The random field is applied to represent the spatial variation of the soil properties. Monte Carlo simulation associate with an improved asymptotic sampling using normal and sobol sampling is utilized to generate the probability distribution of the foundation stiffness. It is shown that asymptotic sampling associated with sobol quasi random sampling is an efficient method to estimation of probability distribution in presented problems.
| Original language | English |
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| Title of host publication | Proceedings of the 9th International Conference on Testing and Design Methods for Deep Foundations, Kanazawa, Japan |
| Number of pages | 9 |
| Publisher | Southeast Asian Geotechnical Society |
| Publication date | 2012 |
| Pages | 665-673 |
| Publication status | Published - 2012 |
| Event | IS-Kanazawa 2012: The 9th International Conference on Testing and Design Methods for Deep Foundations - Kanazawa, Japan Duration: 18 Sept 2012 → 20 Sept 2012 Conference number: 9 |
Conference
| Conference | IS-Kanazawa 2012 |
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| Number | 9 |
| Country/Territory | Japan |
| City | Kanazawa |
| Period | 18/09/2012 → 20/09/2012 |
Keywords
- Wind Turbines
- Foundations
- Random Fields
- Stochastic Analysis
- Asymptotic Sampling
- Finite Element Method