Double-Use Off-Shore Meteorological Tower with Three-Leg Suction Pile Foundation-PPT Presentation

PPT Presentation

Pdf Summary

The presentation describes the successful reuse of an offshore meteorological tower supported by a three-leg suction-pile foundation. The tower and foundation were assembled onshore as a single 97.1-m-high unit, transported offshore, and installed using an all-in-one suction installation method. After use at the first site, the structure was retrieved, wet-towed, and reinstalled at a second site.<br /><br />The tower’s Vierendeel design reduced wave-structure interference. Its wave loading at the ocean surface was approximately 20% lower than that of a comparable lattice jacket alternative.<br /><br />In this double-use project, reuse saved an estimated 34% in cost—about $4.2 million—and 48% in time, or 184 days, compared with the alternative approach. The project demonstrates that reusing a meteorological tower is technically feasible and can offer substantial cost and schedule benefits. With suction piles designed for the relevant site conditions, a tower may potentially be reused more than twice.

Keywords

offshore meteorological tower

suction-pile foundation

tower reuse

wet towing

Vierendeel design

wave loading

offshore installation

cost savings

schedule reduction

double-use project