期刊
GEOTECHNIQUE
卷 70, 期 11, 页码 945-960出版社
ICE PUBLISHING
DOI: 10.1680/jgeot.18.PISA.001
关键词
full-scale tests; in situ testing; laboratory tests; piles & piling; site investigation; soil/structure interaction
资金
- UK Department for Energy and Climate Change (DECC)
- PISA industry partners under the umbrella of the offshore wind accelerator (OWA) programme
- EDF
- Vattenfall
- Van Oord
- Orsted Wind Power
- Alstom Wind
- E.ON
- Equinor
- innogy
- SPR
- SSE
This paper is the first of a set of linked publications on the PISA Joint Industry Research Project, which was concerned with the development of improved design methods for monopile foundations in offshore wind applications. PISA involved large-scale pile tests in overconsolidated glacial till at Cowden, north-east England, and in dense, normally consolidated marine sand at Dunkirk, northern France. The paper presents the characterisation of the two sites, which was crucial to the design of the field experiments and advanced numerical modelling of the pile-soil interactions. The studies described, which had to be completed at an early stage of the PISA project, added new laboratory and field campaigns to historic investigations at both sites. They enabled an accurate description of soil behaviour from small strains to ultimate states to be derived, allowing analyses to be undertaken that captured both the serviceability and limit state behaviour of the test monopiles.
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