Driven cast-in-situ piles installed using hydraulic hammers: Installation energy transfer and driveability assessment

Numerical analyses of energy balance and installation mechanisms of large-diameter tapered monopiles by impact driving

“…The lengths of the piles are 14.75m and 14.80m, respectively. The hammer type was Junttan HHK5A, of which operational details were reported by Flynn and McCabe (2019). The soil classification and characterization were based on Piezocone Tests (CPTu).…”

“…The proportion of energy losses during impact driving can reach around 5.0-10.0% for large diameter offshore monopiles (Vantomme et al, 2019). This work mainly focuses on the hammer energy dissipation process in the soil, the associated energy losses are thus not involved as the water domain needs to be modeled using the complex acoustic elements, also the effect of noise is not considered in the numerical model (Flynn and McCabe, 2019). This section will provide insights into the dissipation and exchange of different energy terms during a hammer blow and during the whole process.…”