Centrifuge modelling of hollow heated piles in saturated sand
Centrifuge modelling of hollow heated piles in saturated sand
Thermal piles are a sustainable foundation solution which support structural load whilst generating geothermal energy. Current design practice has been developed for conventional solid concrete thermal piles. This paper focusses on the use of a new innovative hollow thermal pile, the HIPER pile, developed in collaboration with Keltbray Piling. This pile is significantly more thermally efficient; leading to greater temperature gradients than could be expected with conventional thermal piles. A total of four centrifuge model tests at 50g in sand have been conducted to investigate the effects of heating and cooling cycles on pile behaviour under constant load. During testing the pile head movement, pile temperature, and soil temperature were recorded. Relationships between pile movement and thermal cycles are presented.
Greta Sabaliauskaite; S. E. Stallebrass; Andrew M. McNamara; R. Neil Taylor; S. Divall; Jignasha P. Panchal
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
E - Environment, water and energy
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