Predictive modeling of the permafrost thermal regime in Russian railroad subgrade support systems

作     者：Sergei Kudriavtcev Tatiana Valtseva Alexei Kazharskyi Elena Goncharova Iurii Berestianyi 

作者机构：Far Eastern State Transport University (FESTU) Research Construction and Engineering Company "DV-GEOSYNTHETICS " 

出 版 物：《Research in Cold and Arid Regions》 (寒旱区科学（英文版）)

年 卷 期：2013年第5卷第4期

页      面：404-407页

核心收录：

学科分类：081401[工学-岩土工程] 08[工学] 0814[工学-土木工程] 

主　　题：reinforcement modeling deformations permafrost soil embankment 

摘      要：The goal of a predictive thermotechnical calculation is to model the behavior of the top permafrost boundary under current operational conditions as well as increasing average annual air temperatures that results in degradation of the permafrost layer. Numerical modeling was used to assess the efficient application of construction measures to create sustainable operation of the railroad. The numerical modeling was carried out in the programming complex FEM-models developed by geotechnical engineers of St. Petersburg, Russia under Prof. V. M. Ulitsky＇s guidance. The Termoground Program as a part of the FEM-models enables the research of freezing, heaving and thawing in different design solutions. Research was carried out in space resolution for a year cycle. The performed model has shown that the designing measures accepted for permafrost protection from retreat in the subrade support were generally effective.