ABSTRACT
In cryolithozone the problem of buildings and structures adaptation to the increasing climate warming is relevant. Solutions based on thermal insulation of permafrost are being developed. The purpose of this study was to evaluate the effectiveness of a foamed polyethylene (FP) insulation in the base of a building on a pile foundation. For 2022-2092, taking into account the climate warming, a forecast of the temperature in the soil base and piles bearing capacity was carried out in the Frost 3D software. Results shows that FP installation keeps the base in a frozen state and reduce the rate of the seasonally thawed layer increase (in 2052, it’s 2.7 m more outside the building). However, the average annual permafrost temperature raises (by 1°C in 2042). The piles bearing capacity increases up to 10% and 50% (improper building maintenance in last case) with FP installed.
