In-situ thermal conductivity profiling in saturated loose sand
In-situ thermal conductivity profiling in saturated loose sand
Design of offshore power cables requires an accurate thermal ground model. In-situ thermal conductivity profiles typically provide key input information for such ground models. This paper presents a case study for the Nederwiek Wind Farm Zone, offshore Netherlands, where a ground unit of loose sand is frequently present in the top 6 m below seafloor. In-situ thermal conductivity profiles in loose sand were acquired at 34 investigation locations, using an integrated HF-CPT system where HF refers to heat flow test and CPT refers to cone penetration test. HF testing included generation of heat flow through active heating during a CPT penetration interruption. Continuous profiles of in-situ thermal conductivity were obtained by integration and correlation of HF and CPT data at the 34 locations. The unit-specific CPT-based correlations then allowed confident application to another 124 CPT profiles showing loose sand within the Nederwiek Wind Farm Zone.
Leon Vrielink; Nico Parasie; Joek Peuchen
5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)
2 - Site characterization, in-situ and laboratory testing, measurement
https://doi.org/10.53243/ISFOG2025-174
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom