Abstract
Wolf Rock lighthouse (1870) is an isolated offshore rock tower off the Southwest tip of England, built on a steep pinnacle. It is surrounded by relatively deep water, i.e. 60-70m. The lighthouse is battered by Atlantic winter storms, which result in dramatic wave impacts and exceptional runup, even reaching to its 41m high lantern level. New experimental and numerical modelling campaigns are carried out to understand the structural response of this engineering marvel. This paper will present the main results of the hydrodynamic investigations, highlighting the main issues and achievements of the first-ever attempted model of a rock lighthouse with the ambitious scale of 1:40.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/n5L5TcBiWvo
Highlights
Victorian lighthouses have survived more than 150 years without requiring major repair work
Mean Sea Level has increased at 1.8mm/year (Wadey et al, 2014)
In 2067, extreme design water level will be more than 1.5m higher than what it was at the time of the lighthouses’ design
Summary
BACKGROUND Victorian lighthouses have survived more than 150 years without requiring major repair work. During the last two decades, some supporting structures have showed minor damage (Figure 1), even though the main rock towers show little signs of deterioration. Mean Sea Level has increased at 1.8mm/year (Wadey et al, 2014). In 2067, extreme design water level will be more than 1.5m higher than what it was at the time of the lighthouses’ design.
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