geotechnics moving forward by joek peuchen, fugro
TRANSCRIPT
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GEOTECHNICS
MOVING FORWARD
Joek Peuchen
DGI – Copenhagen
April 2014
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Topics
Hybrid foundations
Technology import
First wind
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Background reading
Palix - Suchon, E., Chan, N., Yangrui, Z. and Haijing, W. (2013), "Liwan 3-1:
How Deepwater Sediments From South China Sea Compare With Gulf of
Guinea Sediments", Proceedings OTC2013: Offshore Technology
Conference, 6-9 May, Houston, Texas, USA, OTC Paper 24010.
Peuchen, J. and Balthes, R. (2013), “Strategies for Offshore Geotechnical
Site Investigations in Chalk – European Wind- and Infrastructure
Developments”, in Grabe, J. (Ed.), Conference on Maritime Energy COME
2013, May 21-22, 2013, Hamburg, Germany: Conference Proceedings,
Veröffentlichungen des Institutes Geotechnik und Baubetrieb 26, Hamburg
University of Technology, Hamburg, pp. 185-198.
Peuchen, J. (2012), “Site Characterization in Nearshore and Offshore
Geotechnical Projects”, keynote in Coutinho, R.Q. and Mayne, P.W. (Eds.),
Geotechnical and Geophysical Site Characterization 4: Proceedings of
the Fourth International Conference on Site Characterization ISC-4, Porto
de Galinhas-Pernambuco, Brazil, 17-21 September 2012, Vol. I, CRC
Press, Boca Raton, pp. 83-111.
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Patented(?) low-noise systems
Explore:
Spider shaped foundation system?
Skirted shallow foundation with multi earth penetrating
expansion pile system?
Tight group of auger/spiral/helix screw piles?
Foundation system Foundation
resistance
Frequency
of use
Notes on constructability &
robustness
Hybrid foundation
systems e.g. skirted
foundation with
jacked/ driven piles,
multi-pile block-type
foundation etc.
Favourable VHMT
resistance
Very low,
future?
Moderate potential, robust
options available, limited
offshore track record
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Topic navigation
Hybrid foundations
Technology import
First wind
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Technology import – low-frequency seismics
Can we import low-frequency technology developments into
high-frequency practice - upper 1m to 100m below seafloor?
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Technology import – advanced software
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Technology import – advanced software
Opportunities for advanced simulation and probabilistic software used in reservoir engineering?
Satellite image of coastal dunes southeast of Atyrau & depth map of seismic reflections from overconsolidated sands
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Technology import – advanced software
Iran Iraq
Syria
Turkey Armenia
Georgia
Azerbaijan
Turkmenistan
Uzbekistan
Kazakhstan
Russia
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Topic navigation
Hybrid foundations
Technology import
First wind
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First wind
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First wind
Reduce time to first wind?
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First wind – early data optimisation
Can we optimise early data?
Can we benchmark soil catalogues for parameter interpretation?
Time for re-think of laboratory technologies?
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First wind – soil catalogues
Can we optimise early data?
Can we benchmark soil catalogues for parameter interpretation?
Time for re-think of laboratory technologies?
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First wind – rethink of laboratory technologies
Can we optimise early data?
Can we benchmark soil catalogues for parameter interpretation?
Time for re-think of laboratory technologies?
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First wind –oedometers in offshore labs?
Oedometer apparatus: courtesy of GDS Instruments www.gdsinstruments.com
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For discussion
Hybrid foundations
Technology import
First wind
