Vol. 337 No. 3 (2026)
DOI https://doi.org/10.18799/24131830/2026/3/5315
Reasons for road deformation of the Mogot–Giluy section of the Far Eastern railway
Relevance. Studying deformations of engineering structures lies in the fact that they lead to the destruction of structures, changes in the earth's surface, and danger to people. The analysis of the causes of deformations makes it possible to predict and prevent negative consequences by taking timely measures to eliminate them. Aim. To study the natural, climatic and geological factors responsible for the development of road deformations in the Tynda district of the Amur region. Methods. Collection, systematization and analysis of available territorial geological, hydrological, hydrogeological information, engineering survey results, remote survey data. Results and conclusions. We considered the following factors affecting the development of deformations of roads and railways on the site, climate changes, morphometric characteristics of the relief (terrain height, slope and exposure of slopes), vegetation and snow cover, and the spread of permafrost. We tested the technique for detecting permafrost rocks and taliks using satellite data. The use of GIS technologies made it possible to present the spatial features of the components of the geological environment in a single digital format. The average annual air temperature in the region is increased by 2.4°C over the period 1960–2024. Estimates of precipitation changes shown a slight positive secular trend. The infiltration of summer precipitation correlates with road deformations in 2008, for example, in May–July 2007 and August 2008, precipitation was almost twice the annual average. To study the types of vegetation and snow cover we used an algorithm for uncontrolled classification of satellite image isoclusters as indicators of permafrost. The area occupied by frozen strata is estimated at 60–80%, the permafrost thickness does not exceed 200 m. Permafrost is characterized by high temperatures throughout the territory (minus 1–3°C). We established the reasons for the development of railway deformations on the site: flooding and thermokarst development. In the future, it is planned to track the spatial and temporal features of permafrost rocks and taliks, and assess the dynamics of permafrost degradation.
For citation: Strokova L.A. Reasons for road deformation of the Mogot–Giluy section of the Far Eastern railway. Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering, 2026, vol. 337, no. 3, pp. 15–27. https://doi.org/10.18799/24131830/2026/3/5315
Keywords:
engineering and geological conditions, regional factors, soil, deformations, permafrost, thermokarst
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