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Cyclic Axial Load Tests On Driven Piles In Overconsolidated Clay

Proceedings of the 7th International Conference 'Integrated Geotechnologies – Present and Future', 12–14 September 2012 at the Royal Geographical Society, London. Offshore Site Investigation and Geotechnics (OSIG) Group of the Society for Underwater Technology (SUT).

12 Sep 2012
O. Benzaria, A. Puech, A. Le Kouby

As part of the French national research project SOLCYP, an extensive series of static and cyclic axial pile load tests has been carried out in the overconsolidated Flandrian clays from northern France (Merville ex-perimental site). Tests were performed on 4 driven closed-ended pipe piles (with a depth of 406mm, length of 13m and wall thickness of 15mm); 4 bored piles; and 2 screwed piles (with a depth of 420mm and length of 13m). All piles were instrumented with retrievable extensometers for measuring the load distribution along the pile wall. The paper describes the context of the pile tests and presents preliminary static and cyclic test results obtained on the driven piles. The example of pile B4 under one-way tension loading is taken to illus-trate the type and quality of data acquired.


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