Monash University - Soil‐Pile Interface Shear Strength Under Thermal Loading

Energy piles are defined as dual‐purpose structural elements. They utilise the required ground‐concrete contact element to transfer the superstructure loads to the ground as well as acting as a heat exchanger unit. Several studies have highlighted the importance of gaining better understanding of coupled loading conditions and temperature effects on the soil‐pile interaction mechanism. In particular, the effect of temperature cycles on side friction as it has been postulated that contraction during cooling and/or cycles of heating and cooling may lead to a decrease in side friction or shaft friction degradation.

Shearbox Test 

A modified shearbox is used to study soil‐pile interface shear strength under different temperatures. The modified shear box has a heating element placed at the bottom. The lower half of the box was reproduced with PTFE material to reduce lateral heat transfer and heat loss from the bottom side. To read more, download the complete case study from the link below.

Click here to download the case study.

Components in Case Study