Dynamic Analysis Of Offshore Wind Turbine Foundations In Soft Clays Xinglei Cheng by Xinglei Cheng, Dechun Lu, Piguang Wang, (eds.) instant download after payment.

Offshore wind energy has experienced rapid growth in recent years, driven by its abundant, clean, and renewable advantages. In China’s nearshore waters, deep soft clay layers are widespread, characterized by high sensitivity, strong compressibility, and low shear strength. Furthermore, China’s coastal regions lie within the circum-Pacific seismic belt, making most nearshore waters prone to earthquakes. In such demanding offshore environments, offshore wind turbines (OWTs) installed in soft clays face prolonged environmental loads including wind, waves, currents, and occasional seismic events over their typical 25-year design lifespan. The combination of weak soil conditions and complex loading scenarios poses a considerable risk to the safe operation of OWTs. Current guidelines for OWTs place significant emphasis on the Service Life Limit State (SLS) requirements in foundation design. Stringent displacement control criteria present substantial hurdles for designers, prompting extensive research into the dynamic responses of offshore foundations under these diverse conditions.
The authors and their research team systematically investigated dynamic analysis methods and response characteristics of various offshore wind turbine (OWT) foundations, including single pile,multi-pile, single bucket, and multi-bucket configurations, under marine environmental loads.Nonlinear constitutive simulation of soil was crucial for analyzing the dynamic behavior of these foundations. The authors developed a simple bounding surface constitutive model of clays and proposed a refined time-domain global analysis approach that integrates calculations of the soft clay-foundation-wind turbine superstructure system. Furthermore, they devised
an elastic-plastic p-y model specifically for analyzing lateral dynamic responses of monopile foundations is soft clays, simplifying calculations for monopile-based wind turbines. This book systematically introduces dynamic analysis methods and load-bearing