ABSTRACT
In this paper, we introduce four computer programs (WARM, TEM, PFL, NAST) created at Moscow State University for use in permafrost engineering. The program “WARM” simulates conductive heat transfer with phase changes to forecast the thermal and phase state of permafrost, and thawing and freezing soils when interacting with engineering structures and environment. The software “TEM” is designed for processing borehole temperature measurements. The purpose of this program is to reveal the zones inside permafrost in which the difference between the actual temperature and the projected temperature is dangerous for structures. The software “PFL” represents a reference and teaching system. The program “NAST” calculates the reliability of the system “structure-foundation” and can reduce total cost by including the estimated cost of construction and the price of the risk (cost equivalent of the reliability).
