When a new ground source heat exchanger field is planned, underground thermal
properties input data are necessary for the correct sizing of the geo-exchange system. To …

Gravelly soils, characterized by a mixture of fine soil matrix and coarse gravel aggregates,
are widely distributed in high mountain and cold plateau areas. These soils are frequently …

Horizontal stress changes of semi-floating energy piles subjected to cyclic thermal loading
are investigated through finite element analysis adopting the hypoplastic model. By using …

The freeze–thaw cycles artificially induced in the ground by ground source heat pump
systems working at sub-zero temperatures, or during underwater soil excavation, could …

In landfills, due to their low hydraulic conductivity, compacted clays (CC) are commonly used
in multilayered structures as base liners and cover systems. Nevertheless, the hydraulic …

The existence of groundwater flow adds a convective heat component to shallow
geothermal heat pump systems, significantly improving heat transfer efficiency. Numerous …

This study aims to quantify the microstructural evolution of saturated clay during one thermal
cycle. For this purpose, five saturated normally consolidated kaolinite clay triaxial specimens …

In closed-loop geothermal systems the underground may freeze and thaw due to intensive
heat extraction. Phase change alters the sediments' mechanical and hydraulic properties …

Ground-coupled heat pump (GCHP) systems are being increasingly utilized in recent years.
There are several important parameters in the design of GCHP systems. As ground thermal …

The flow of groundwater and the interaction of buried pipe groups will affect the heat transfer
efficiency and the distribution of the ground temperature field, thus affecting the design and …