This paper presents a novel dynamically installed anchor concept suitable for sand. The anchor, referred to as the DPAIII, uses a thin ‘blade-like’ design to reduce bearing resistance during penetration, and comprises a lower plate attached to an upper removable follower. The anchor is installed through the kinetic energy it gains during free-fall in water. After embedment, the upper follower is removed leaving the lower plate an-chor vertically embedded in the sand. This paper examines the embedment potential of the DPAIII through centrifuge tests conducted at 100 g in both loose and dense sand, using a model DPA III with different fol-lower masses, impacting the model sand bed at two different velocities. The centrifuge tests show promising results, with anchor tip embedment in the range of 0.9 to 2.2 times the lower plate length. The tip embed-ment is found to be a function of the soil relative density, anchor mass and impact velocity.
|Title of host publication||Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments|
|Subtitle of host publication||Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London|
|Publisher||Society for Underwater Technology|
|ISBN (Print)||9780906940570 (hbk) Volume 1, 9780906940587 (hbk) Volume 2|
|Publication status||Published - 12 Sep 2017|
|Event||8th Offshore Site Investigation and Geotechnics International Conference: ‘Smarter Solutions for Future Offshore Developments’ - Royal Geographical Society, London, United Kingdom|
Duration: 12 Sep 2017 → 14 Sep 2017
http://www.sutconnects.com/ (Link to conference website)
|Conference||8th Offshore Site Investigation and Geotechnics International Conference|
|Period||12/09/17 → 14/09/17|
Chow, S. H., O’Loughlin, C. D., Gaudin, C., Knappett, J., Brown, M., & Lieng, J. T. (2017). An Experimental Study of the Embedment of a Dynamically Installed Anchor in Sand. In Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments: Proceedings of the 8th International Conference, held 12–14 September 2017 at the Royal Geographical Society, London (Vol. 1-2, pp. 1019-1025). Society for Underwater Technology.