CUED Publications database

Enhancing the lateral capacity of monopiles in sand using reinforced concrete footings

Haiderali, AE and Madabhushi, SPG (2015) Enhancing the lateral capacity of monopiles in sand using reinforced concrete footings. In: UNSPECIFIED pp. 1097-1102..

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Abstract

© The authors and ICE Publishing: All rights reserved, 2015. This paper presents the results of three dimensional finite element analyses, which investigated the improvement in the lateral capacity of a large diameter monopile in medium dense to dense sand when used in combination with reinforced concrete footings. Footings, with and without a skirt, were assessed under a combination of vertical, lateral and moment loads expected at an offshore wind farm location with a water depth of 30 m. The influence of surcharge load due to a gravel armour was also examined. Findings indicate favourable interaction between the monopile, footings and the gravel armour resulting in increased lateral capacity of the hybrid systems. The larger lateral capacity is as a result of the restoring force provided by the footings and the subsequent reduction in monopile bending moments. In addition to being technically feasible, the hybrid options were also found to be cost effective.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:33
Last Modified: 03 Aug 2017 03:07
DOI: