...-horizontal thermosyphons to remove the heat transferred through the floor of the approximately 80°F (27°C) power plant. In order to add strength to the native permafrost, and thereby minimize the creep settlement, an active refrigeration system incorporating the 55 near-horizontal thermosyphons and over 30...

.... After the removal of the temporary mechanical refrigeration, a passive thermosyphon system was employed as part of the foundation design to maintain the long-term integrity of the frozen soils. A special procedure was used to install and monitor the passive systems in the foundation piles...

... ABSTRACT Thermosyphons have been used across Alaska and northern Canada as a means of stabilizing foundations built on permafrost. This paper describes a number of different applications including details of the installations. A brief discussion of the design methodology is also presented...