Abstract
The paper considers modelling of effective structures of existing railroad embankments in several variants when projecting side tracks on the Baikal-Amur Mainline of the “Russian Railway”, PLC. The comparison of different factors affecting the temperature fluctuation in the roadway on a partially thawed permafrost subgrade was carried out by the numerical modeling in a non-stationary setting. Quite a number of rational designs for railway embankments, bridges and pipes located in the permafrost areas are developed according to the methods and design-basis justification that are created during a reconstruction of the Eastern Polygon on the Baikal-Amur Mainline.
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