Along the Khani-Tynda section of the railway line crossing Eastern Siberia and the Russian Far East, thawing of permafrost caused long-term deformation of the railway roadbed, requiring a redesign. The university was tasked with performing thermal engineering calculations of the railway embankment related to the spread of permafrost soil. They faced discrepancies between Russian geological and model parameters, compounded by challenges predicting temperature fields and incorporating the other factors required to obtain the total accumulated operating experience along the railroad.
They selected PLAXIS to perform thermal calculations relating to various factors to preserve permafrost soil in its frozen state. Using the automated features, they completed the computational modeling within minutes, compared to several days or weeks of manual engineering work, and eliminated the possibility of entering incorrect data into the model. The model correctly and accurately demonstrates the real behavior of the railway embankment and foundation, and the calculation results justified the design solutions.