Using CPTs to derive thermal properties of soil

Philip J. Vardon, Joek Peuchen

Research output: Contribution to journalConference articleScientificpeer-review

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Abstract

A method of utilizing cone penetration tests (CPTs) is presented which gives continuous profiles of both the in situ thermal conductivity and volumetric heat capacity, along with the in situ temperature, for the upper tens of meters of the ground. Correlations from standard CPT results (cone resistance, sleeve friction and pore pressure) are utilized for both thermal conductivity and volumetric heat capacity for saturated soil. These, in conjunction with point-wise thermal conductivity and in situ temperature results using a Thermal CPT (T-CPT), allow accurate continuous profiles to be derived. The CPT-based method is shown via a field investigation supported by laboratory tests to give accurate and robust results.
Original languageEnglish
Article number04005
Number of pages6
JournalE3S Web Conf.
Volume205
DOIs
Publication statusPublished - 2020
Event2nd International Conference on Energy Geotechnics - San Diego, United States
Duration: 10 Apr 202213 Apr 2022
https://icegt-2020.eng.ucsd.edu/home

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