The ALPACA research project to improve design of piles driven in chalk
Chalk is present under large areas of NW Europe as a low - density, porous , weak carbonate rock. Large numbers of offshore wind turbines, bridge s and port facilities rely on piles driven in chalk. C urrent European practice assume s ultimate shaft resistances that appear low in comparison with the...
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Icelandic Geotechnical Society
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Online Access: | http://hdl.handle.net/10044/1/74936 https://doi.org/10.32075/17ECSMGE-2019-0071 |
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ftimperialcol:oai:spiral.imperial.ac.uk:10044/1/74936 2023-05-15T16:50:30+02:00 The ALPACA research project to improve design of piles driven in chalk Jardine, R Kontoe, S Liu, T Vinck, K Byrne, B Ross, M Schranz, F Andolfsson, T Buckley, R Engineering & Physical Science Research Council (E Ørsted WIND POWER A/S Scottishpower Renewables (UK) Limited Statoil Petroleum AS Siemens Gamesa Renewable Energy A/S Innogy SE Eoliennes en Mer Dieppe Le Transport Parkwind NV Reykjavík, Iceland 2019-04-16 http://hdl.handle.net/10044/1/74936 https://doi.org/10.32075/17ECSMGE-2019-0071 unknown Icelandic Geotechnical Society Proceedings of the XVII ECSMGE-2019 Geotechnical Engineering foundation of the future © The authors and IGS: All rights reserved, 2019 XVII European Conference on Soil Mechanics and Geotechnical Engineering Conference Paper 2019 ftimperialcol https://doi.org/10.32075/17ECSMGE-2019-0071 2019-11-21T23:37:55Z Chalk is present under large areas of NW Europe as a low - density, porous , weak carbonate rock. Large numbers of offshore wind turbines, bridge s and port facilities rely on piles driven in chalk. C urrent European practice assume s ultimate shaft resistances that appear low in comparison with the Chalk’s unconf ined compression strength and CPT cone resistance ranges and can impact very significantly on project economics. L ittle guidance is available on pile driveability, set - up or lateral resistance in chalk, or on how piles driven in chalk can sustain axial or lateral cyclic loading. This paper describes the ALPACA (Axial - Lateral Pile Analysis for Chalk Applying multi - scale field and laboratory testing) p roject funded by EPSRC and Industry that is develop ing new design guidance through comprehensive field testin g at a well - characterised low - to - medium density test site , supported by analysis of other te sts. Field experiments on 36 driven piles, sixteen of which employ high resolution fibre - optic strain gauges, is supported by advanced laboratory and in - situ testing, as well as theoretical analysis. The field work commenced in October 2017 and was largely complete in May 2019. Conference Object Iceland Reykjavík Reykjavík Imperial College London: Spiral Reykjavík |
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Imperial College London: Spiral |
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ftimperialcol |
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unknown |
description |
Chalk is present under large areas of NW Europe as a low - density, porous , weak carbonate rock. Large numbers of offshore wind turbines, bridge s and port facilities rely on piles driven in chalk. C urrent European practice assume s ultimate shaft resistances that appear low in comparison with the Chalk’s unconf ined compression strength and CPT cone resistance ranges and can impact very significantly on project economics. L ittle guidance is available on pile driveability, set - up or lateral resistance in chalk, or on how piles driven in chalk can sustain axial or lateral cyclic loading. This paper describes the ALPACA (Axial - Lateral Pile Analysis for Chalk Applying multi - scale field and laboratory testing) p roject funded by EPSRC and Industry that is develop ing new design guidance through comprehensive field testin g at a well - characterised low - to - medium density test site , supported by analysis of other te sts. Field experiments on 36 driven piles, sixteen of which employ high resolution fibre - optic strain gauges, is supported by advanced laboratory and in - situ testing, as well as theoretical analysis. The field work commenced in October 2017 and was largely complete in May 2019. |
author2 |
Engineering & Physical Science Research Council (E Ørsted WIND POWER A/S Scottishpower Renewables (UK) Limited Statoil Petroleum AS Siemens Gamesa Renewable Energy A/S Innogy SE Eoliennes en Mer Dieppe Le Transport Parkwind NV |
format |
Conference Object |
author |
Jardine, R Kontoe, S Liu, T Vinck, K Byrne, B Ross, M Schranz, F Andolfsson, T Buckley, R |
spellingShingle |
Jardine, R Kontoe, S Liu, T Vinck, K Byrne, B Ross, M Schranz, F Andolfsson, T Buckley, R The ALPACA research project to improve design of piles driven in chalk |
author_facet |
Jardine, R Kontoe, S Liu, T Vinck, K Byrne, B Ross, M Schranz, F Andolfsson, T Buckley, R |
author_sort |
Jardine, R |
title |
The ALPACA research project to improve design of piles driven in chalk |
title_short |
The ALPACA research project to improve design of piles driven in chalk |
title_full |
The ALPACA research project to improve design of piles driven in chalk |
title_fullStr |
The ALPACA research project to improve design of piles driven in chalk |
title_full_unstemmed |
The ALPACA research project to improve design of piles driven in chalk |
title_sort |
alpaca research project to improve design of piles driven in chalk |
publisher |
Icelandic Geotechnical Society |
publishDate |
2019 |
url |
http://hdl.handle.net/10044/1/74936 https://doi.org/10.32075/17ECSMGE-2019-0071 |
op_coverage |
Reykjavík, Iceland |
geographic |
Reykjavík |
geographic_facet |
Reykjavík |
genre |
Iceland Reykjavík Reykjavík |
genre_facet |
Iceland Reykjavík Reykjavík |
op_source |
XVII European Conference on Soil Mechanics and Geotechnical Engineering |
op_relation |
Proceedings of the XVII ECSMGE-2019 Geotechnical Engineering foundation of the future |
op_rights |
© The authors and IGS: All rights reserved, 2019 |
op_doi |
https://doi.org/10.32075/17ECSMGE-2019-0071 |
_version_ |
1766040639682641920 |