The key areas of strategic development of the Russian regions of the Arctic and the North are strengthening the transport and logistics contour, improving and growing the Arctic railway range, unlocking the potential of inland waterways, and modernizing and expanding resource hubs. The territory of sustainable growth implies the creation of jobs, where industry, modern social and residential infrastructure are being built and developed. At the same time, it is necessary to take into account cryogenic processes and phenomena that can negatively affect engineering structures. With global climate warming, the need for reliable forecasts is increasing, as the balance of many systems is lost during the transition from one climatic state to another. It should be emphasized that climate warming in the cryolithozone creates new problems related to the stability and safety of engineering structures in permafrost. Using mathematical methods of inverse and incorrect problems, methods for predicting negative cryogenic processes on engineering structures are proposed. It has been established that the passage of the main gas pipeline across the river affects the process of riverbank alluviation, while long-term cyclical freezing-thawing is accompanied by water migration and soil deformation. According to the data of the monitoring of the thermal balance condition of the soil of the Tommot-Nizhny Bestyakh railway, it was found that with the warming of the climate, the embankment of the railway built on highly silty soils is in a plastic state. Using the verification of experimental data parameters during the phase transition of a pore solution, the results of three numerical studies are presented – a railway embankment on highly silty soils, modeling of an underground pipeline, and the heat and humidity regime of the Lena River coastal soil. Identification of model parameters using modern methods for solving incorrect problems provides a more reliable and accurate numerical calculation of changes in the temperature and humidity regime of soils.
Permyakov et al. (Thu,) studied this question.