Features of the organization of engineering and geocryological monitoring of highways operated in areas of permafrost distribution

The object of study is to assess the state of engineering-geocryological monitoring of geotechnical systems (GTS) of highways in the area of permafrost distribution. The subject of the study is a set of measures to collect, process and accumulate data on road deformations, identify the causes of their occurrence and make decisions to eliminate them. The authors consider in detail such aspects of the topic as the causes of deformations of highway objects in different geocryological conditions. Particular attention is paid to the analysis of various options for obtaining primary information. From the very beginning of operation, highways in the permafrost zone are subject to intense deformations, which resume after repair and restoration work. The main conclusions of the study are: deformations on highways in the permafrost zone are caused by a complex of reasons associated with intense phase transitions of water in rock strata, which fundamentally distinguishes them from similar geosystems formed in more southern regions; engineering and geocryological monitoring of the objects under consideration must be carried out on the basis of interaction between the operating organization, the structure providing scientific support and the center for making management decisions; The existing regulatory framework does not correspond to the problems that arose during the operation of highways in the permafrost zone.

highway, roadbed, deformations, cryolithozone, frozen rocks, termokarst, thermoerosion, geotechnical system, geotechnical monitoring, engineering-geocryological monitoring