Abstract
| Original language | English |
|---|---|
| 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 |
| Pages | 346-353 |
| Volume | 1-2 |
| 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
| Conference | 8th Offshore Site Investigation and Geotechnics International Conference |
|---|---|
| Country | United Kingdom |
| City | London |
| Period | 12/09/17 → 14/09/17 |
| Internet address |
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Keywords
- Screw piles
- CPT test
- Sand
- Torque
Cite this
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CPT Based Design Procedure for Installation Torque Prediction for Screw Piles Installed in Sand. / Al-Baghdadi, Therar; Davidson, Craig; Brown, Michael; Knappett, Jonathan; Brennan, Andrew; Augarde, Charles E.; Coombs, William M.; Wang, Lei; Richards, David; Blake, Anthony.
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 Society for Underwater Technology, 2017. p. 346-353.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - CPT Based Design Procedure for Installation Torque Prediction for Screw Piles Installed in Sand
AU - Al-Baghdadi, Therar
AU - Davidson, Craig
AU - Brown, Michael
AU - Knappett, Jonathan
AU - Brennan, Andrew
AU - Augarde, Charles E.
AU - Coombs, William M.
AU - Wang, Lei
AU - Richards, David
AU - Blake, Anthony
PY - 2017/9/12
Y1 - 2017/9/12
N2 - Screw piles (helical piles) have been used widely as foundations for onshore projects due to their ability to provide high compressive and tensile resistance as well as reduced noise/vibration during installation. These types of piles have been proposed as a potential innovative foundation for offshore wind turbines in deeper water. In order to adopt the screw pile technique as an offshore foundation, the geometry of the piles would need to be scaled up so they can provide the high capacities required for this application. Such a change in size and geometry will lead to uncertainties in predicting the required torque for installation in different soil types and stress histories. Without the ability to accurately predict installation torque it is difficult to design screw piles for offshore use or develop appropriate installation plant with the required torque capabilities in different soils. This paper presents centrifuge test results of screw piles and CPT tests undertaken in dense sand. The installation torque (T) has been correlated to the cone resistance qc to establish a proposed CPT-based design method to predict the required installation torque for modified screw pile geometries.
AB - Screw piles (helical piles) have been used widely as foundations for onshore projects due to their ability to provide high compressive and tensile resistance as well as reduced noise/vibration during installation. These types of piles have been proposed as a potential innovative foundation for offshore wind turbines in deeper water. In order to adopt the screw pile technique as an offshore foundation, the geometry of the piles would need to be scaled up so they can provide the high capacities required for this application. Such a change in size and geometry will lead to uncertainties in predicting the required torque for installation in different soil types and stress histories. Without the ability to accurately predict installation torque it is difficult to design screw piles for offshore use or develop appropriate installation plant with the required torque capabilities in different soils. This paper presents centrifuge test results of screw piles and CPT tests undertaken in dense sand. The installation torque (T) has been correlated to the cone resistance qc to establish a proposed CPT-based design method to predict the required installation torque for modified screw pile geometries.
KW - Screw piles
KW - CPT test
KW - Sand
KW - Torque
M3 - Conference contribution
SN - 9780906940570 (hbk) Volume 1
SN - 9780906940587 (hbk) Volume 2
VL - 1-2
SP - 346
EP - 353
BT - Offshore Site Investigation and Geotechnics: Smarter Solutions for Future Offshore Developments
PB - Society for Underwater Technology
ER -