Prediction of short piles response to lateral monotonic load in dense sand at Blessington
Prediction of short piles response to lateral monotonic load in dense sand at Blessington
This paper presents some initial results of an experimental campaign aimed at extending the existing database of pile lateral field tests. Monopiles with low slenderness ratios (L/D, ratio of pile embedment to pile diameter) less than 4.5 are deemed to be representative of current and future monopile foundation designs for the offshore wind industry. The monopile field testing consisted of both monotonic and cyclic tests with slenderness ranging from 2.2 to 4.4. A total of 6 piles with an outer diameter of 457 mm were driven and tested in dense sand at the Blessington test site, located south to Dublin in Ireland. Three different approaches were used to predict the monotonic pile responses. Traditional approaches (API and PISA rule) were found to significantly underestimate both piles stiffness and ultimate capacity. A novel set of CPT based correlations of HS-small parameters for three-dimensional finite-element analyses recently developed by Trinity College Dublin was found to provide very accurate predictions of both stiffness and ultimate reaction.
Louis-Marin Lapastoure; David Igoe
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
E - Environment, water and energy
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