lundy island, jetty & harbour infrastructure - civil ... · constructed using rock anchored...
TRANSCRIPT
The 90m long open structure jetty was engineered to sustain forces generated by the high energy wave climate; the design wave height was calculated to be 8m. The jetty comprised a pre-cast concrete deck, cross tensioned and braced by cross head beams supported on 1200 diameter tubular steel piles, extending 5m into competent rock. The deck is vented and its so�t pro�led to rapidly vent air and water, which would otherwise by compressed by extreme storm wave energy.
The access road was formed by both excavation into the sea cli� and construction across the foreshore. Sea walls were constructed using rock anchored reinforced sprayed concrete. The shore building, erected on reclaimed land, comprises a steel framed timber clad building.
Construction of the jetty deckInstallation of the jetty piles
The completed jetty and harbour infrastructure
LUNDY ISLAND, JETTY AND HARBOUR INFRASTRUCTURE CIVIL & STRUCTURAL ENGINEERING
COMPANY CASE STUDYCOMPANY CASE STUDY
John Grimes Partnership Ltd,
Leonards Road,
Ivybridge, Devon,
PL21 0RU
Email: [email protected]
Phone: +44 (0) 1752 690533
Fax: +44(0)1752 690570
Web: www.johngrimes.co.uk
Lundy is a remote island on the Bristol Channel, with a tidal range of 9.2m. Administered by the Landmark Trust, Lundy Island is a SSSI and surrounding seas are a Marine Nature Reserve. John Grimes Partnership provided civil, structural and rock slope engineering consultancy services for the design and supervision of the construction of the new jetty, adjacent access road, harbour infrastructure and ancillary buildings. The new jetty and road allows access to the island at all states of tide and weather. Works were completed in 2000. Project value: £2.2M.