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Numerical analysis of energy piles under different boundary conditions and thermal loading cycles

Khosravi, A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1051/e3sconf/20160905005
  3. Publisher: EDP Sciences
  4. Abstract:
  5. The thermo-mechanical behavior of energy piles has been studied extensively in recent years. In the present study, a numerical model was adapted to study the effect of various parameters (e.g. heating/cooling temperature, head loading condition and soil stiffness) on the thermo-mechanical behavior of an energy pile installed in unsaturated sandstone. The results from the simulations were compared with measurements from a thermal response test on a prototype energy pile installed beneath a 1-story building at the US Air Force Academy (USAFA) in Colorado Springs, CO. A good agreement was achieved between the results obtained from the prototype and the numerical models. A parametric evaluation were also carried out which indicated the significance of the stiffness of the unsaturated sandstone and pile's head loading condition on stress-strain response of the energy pile during heating/cooling cycles
  6. Keywords:
  8. Source: 3rd European Conference on Unsaturated Soils, 2 September 2016 through 14 September 2016 ; Volume 9 , 2016 ; 22671242 (ISSN)
  9. URL: https://www.e3s-conferences.org/articles/e3sconf/abs/2016/04/e3sconf_eunsat2016_05005/e3sconf_eunsat2016_05005.html