Keyword: «subgrade»

The article briefly describes the formation of the roadbed in the area of zhuravka – Millerovo taking into account engineering-geological, engineering-geodesic, engineering-hydrometeorological and hydrological surveys, taking into account the experience of design, construction and operation of railway lines under the load of an eight-axle freight car.

This paper presents the results of geocryological monitoring in the ice-rich section of the Tommot – Nizhny Bestyakh Railway where innovative permafrost protection techniques were used. Quantitative assessment of changes in the thermal state of soils in and below the embankments of different designs with thermosyphons and insulation is provided.

The features of the interaction in the wheel-rail system are considered, taking into account the design factors and the railway track state and their influence on the contact fatigue life of rails. Models of the railway track have been developed, including the superstructure and substructure, along with other infrastructure in the railway zone, and allowing to study the properties and performance capability of the track in connection with the prospect of the increase in axle loads and freight traffic in certain sections of operation, as well as in connection with state deterioration when stiffness of the track superstructure and substructure is changed due to the natural and climatic conditions of the North.