Outstanding Issues In Understanding The Behaviour Of Thermally-Activated Pile Foundations

- Organization:
- Deep Foundations Institute
- Pages:
- 10
- File Size:
- 3425 KB
- Publication Date:
- May 1, 2022
Abstract
The thermomechanical response of thermally-activated (TA) piles under monotonic thermal loads is quite
well understood and the remaining uncertainties relate to the effect of long-term, cyclic loading of individual
TA piles and pile groups. Recent studies undertaken by the authors have provided insights into the behaviour
of TA pile foundations undergoing cyclic thermal loading. Despite their simplicity, the analyses show that
key aspects of the observed response of piles in sand, under cyclic thermal loading can be reproduced,
providing confidence in the outcomes of the analyses. The studies examined isolated piles and pile groups,
and concluded that irrecoverable thermally-induced settlement may be mitigated through the choice of an
appropriate margin of safety on the pile shaft resistance under service mechanical load conditions, and the
maximum thermal stress can also be readily estimated. This paper consolidates these works and provides
guidance regarding the safe geotechnical and structural design of the piles, then looks towards the remaining
issues around the safe provision of thermally-activated pile foundations.
Citation
APA:
(2022) Outstanding Issues In Understanding The Behaviour Of Thermally-Activated Pile FoundationsMLA: Outstanding Issues In Understanding The Behaviour Of Thermally-Activated Pile Foundations. Deep Foundations Institute, 2022.