1. Te-An Wang Advisor: Dr. Sam Helwany
Soil–pile thermomechanical behavior

2. Geothermal Energy
Alternative energy. Stable temperature in the ground makes deep soil layers a good thermal reservoir.
From:

3. + = &  ? Energy Foundations Summer Winter Failure Foundation
Structural Elements
Heat Sinks
Energy Foundations + =
Heat Pump System
Pile
(Heat Exchanger)
Summer
Winter
Failure Foundation
&  ?

4. Performance of Energy Pile
Heat carrier fluid temperature changes with the seasons.
Pile surface temperature would be affected.

5. Pile Load Test
Pile load test is a commonly used field test which provides an idea of both shaft resistance and end resistance.

6. Methodology Step 1. Apply thermal load
Step 2. Apply axial load on pile

7. Results
The pile has encountered increased settlement following thermal cycling. This experimental study presents evidence about the temperature-induced changes in pile capacity

8. Future Work
Perform FEM analysis to gain insight into the effects of heating/cooling cycles generate by an energy pile on the behavior of surrounding saturated clay, particularly the generation and dissipation of pore water pressures.