Projects per year
Abstract
Cable ploughing is an important technique for burying and protecting offshore cables. The ability to predict the required tow force and plough performance is essential to allow vessel selection and project programming. Existing tow force models require calibration against full-scale field testing to determine empirical parameters, which may hinder their use. In this study the factors controlling the plough resistance were investigated using a series of dry and saturated 1/50th scale model cable plough tests in sand in a geotechnical centrifuge at 50g at a range of target trench depths, sand relative densities and plough velocities. An improved model for predicting cable plough tow force which separates out the key components of resistance and allows tow force prediction without the use of field-derived empirical coefficients is presented. It is demonstrated that the key parameters in this model can be easily determined from in-situ Cone Penetration Testing (CPT), allowing it to be used offshore where site investigation techniques may be more limited compared to onshore locations. The model is validated against the centrifuge cable plough tests, demonstrating it can correctly predict both the static (dry) and rate effect (saturated) tow forces.
Original language | English |
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Journal | Canadian Geotechnical Journal |
Early online date | 24 Nov 2020 |
DOIs | |
Publication status | E-pub ahead of print - 24 Nov 2020 |
Keywords
- Cable
- cable plough
Fingerprint Dive into the research topics of 'A CPT approach to cable plough performance prediction based upon centrifuge model testing'. Together they form a unique fingerprint.
Projects
- 1 Finished
Research Output
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Comparative Assessment of Pipeline Plough Performance Prediction Models Against Field Experience in Sand
Brunning, P., Ashton, G., Brown, M., Robinson, S. & Lauder, K. D., 2020, Proceedings of the 30th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers, 7 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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On Lagrangian mechanics and the implicit material point method for large deformation elasto-plasticity
Coombs, W. M., Augarde, C., Brown, M., Brennan, A., Charlton, T., Knappett, J., Motlagh, Y. & Wang, L., 1 Jan 2020, In: Computer Methods in Applied Mechanics and Engineering. 358, p. 1-32 32 p., 112622.Research output: Contribution to journal › Article › peer-review
Open AccessFile5 Citations (Scopus)109 Downloads (Pure) -
Centrifuge testing to verify scaling of offshore pipeline ploughs
Robinson, S., Brown, M., Matsui, H., Brennan, A., Augarde, C. E., Coombs, W. M. & Cortis, M., 14 Nov 2019, In: International Journal of Physical Modelling in Geotechnics. 19, 6, p. 305-317 13 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile2 Citations (Scopus)202 Downloads (Pure)
Datasets
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A CPT approach to cable plough performance prediction based upon centrifuge model testing - Measured Data
Robinson, S. (Creator), Brown, M. (Creator), Matsui, H. (Creator), Brennan, A. (Creator), Augarde, C. (Creator), Coombs, W. M. (Creator) & Cortis, M. (Creator), University of Dundee, 30 Nov 2020
DOI: 10.15132/10000161
Dataset
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