Аннотация:During the last decades, the problem of stability of buildings and constructions in permafrost zone has been significantly aggravated. In the cities of the Northern Russia, the tendency toward the development of total deformation of constructions has been appeared. Thus, in Khatanga, Vorkuta, Igarka, over 50 % of buildings and constructions were deformed. In Norilsk, the largest Trans-Polar industrial center, about 40 % of buildings were deformed and 50 ones of 5 – 10 – stored and 10 – 40 years old are highly emergent and have to be teared down.In has been found that the activity of dangerous cryogenic processes is increasing. The main reasons of deformations are negative technogenic effect on the geocryological and geoecological environment, while the global climate warming still does not affect on the bearing capacity of frozen bases.The complex of engineering measures for the stabilization of the situation in important centers of the Northern Russia as well as specific methods of strengthening of frozen bases has been worked out and experimentally tested. The major measures are: 1) application of artificial cooling of grounds through the use of liquid and vapor-liquid; 2) the cementation of local talics, statical pressing of piles; 3) use of wide range of methods of prevention of consequences of dangerous cryogenic processes. Among the measures of managing of geocryological situation in large urban territories, new techniques for laying of underground collectors for engineering communications have been used, as well as additional cooling of underground communications, increasing of ventilation of cold bases, devising of counterfiltration screens in technogenic embankments, regulation of the snow cover regime in built up areas, organization of the run-off of rain and flood water, management of waste, etc.