Abstract Summary
In order to evaluate the effect of energy piles' geothermal activation on the soil-pile interface behavior, at laboratory scale, a series of direct shear tests were performed using a device adapted for cyclic thermomechanical loading. A series of interface direct shear tests were carried out for three different thermal loading scenarios, i.e., at a constant temperature of 13°C, and for two different cooling-heating (8-18°C) cycles. The volumetric deformation after 10 thermal cycles was evaluated, and the shear test results were compared.
