Pile-soil Interaction Impact on Dynamic Response of Offshore Wind Tower Founded on Monopoles

摘要

M method adopted in Chinese code is linear elastic subgrade reaction method, while the pile-soil interaction is extremely complex process and with greater limitations. P-y curve method is used to calculate the pile foundation; solid element method and monitoring results were compared and analyzed. The results showed that: natural frequency of the structure calculated in different method of pile foundation has a little effect, results are reasonable; in the wind vibration analysis of structure, p-y curve method and solid element method results are more consistent, it applicant to calculate in offshore wind turbine, the results are satisfactory; The applicability of M method under cyclic dynamic loads is studied in this article, when according to the specification values, using 3～4 times m value, the calculation result is more ideal.