Geotechnical behavior of the energy piles

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• Echo Ouyang, CUED
• Thursday 23 May 2013, 16:00-17:00
• Engineering Department - Lecture Room 4.

If you have a question about this talk, please contact Anama Lowday.

Energy piles present an efficient solution for long-term carbon emission reduction and sustainable construction. Their use has been growing since the first reported thermal pile project in the UK at Keble College, Oxford in 2001. However, the momentum of using this technology is hindered by the lack of knowledge and standard guidelines in the geotechnical design of the thermal pile. Majority of thermal piles installed so far have been designed using conventional geotechnical factors of safety, however with this design approach there are concerns about the serviceability limit state (SLS) on thermal piles when subject to cyclic thermal loadings. These concerns often result in the lack of confidence within industry to apply this piling technique. The research addresses these issues through the studying of several field tests data to understand the thermal effects on piles. These effects include the thermally induced concrete stress, pile head movements, modification on the mobilized shaft friction with various pile head constraint conditions. Finally a numerical model will be proposed to assist the industry in designing energy pile.

This talk is part of the Engineering Department Geotechnical Research Seminars series.

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