Pile Adfreeze with Passive Refrigeration

Pile Adfreeze with Passive Refrigeration

Structural supports (piles) are driven to below the anticipated melt point of the permafrost. This can be done via auger drilling and placed the pile into the hole, or hammering the pile into the surface until refusal. The pile is augmented with a sand and water slurry (adfreeze). The type and size of the pile will be determined by the available materials, cost, labor, and site conditions. Piling foundations can be constructed with minimal disturbance to the thermal regime of the site. Piles can be timber, concrete. steel, or composites. Piles are susceptible to heaving forces coming from the active zone during the winter and must be inputted at a proper depth to ensure adequate resistance. Passive refrigeration has been added with the incorporation of a thermosyphon. A thermosyphon is a passive heat exchanger that circulates fluid without a mechanical system.