Evaluation of embankment foundation creep in conditions of deep bedding of roof in permafrost soils |
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| Authors: | Evgeny Ashpiz and Lev Khrustalev |
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| Institution: | 1. Department of Track and Track Facilities, Moscow State University of Railway, 9 0braztsova Str, Moscow 127994, Russia
2. Department of Geology, Lenynskie gory, Lomonosow Moscow State University, Moscow 119991, Russia |
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| Abstract: | Railroad operating experience in permafrost conditions has shown that deformations of embankments on thawing foundations last for a long time. After an initial period of heat settlement due to permafrost degradation, the determining factor is the plastic flow of seasonal thawed soils of the foundation upper layer under the embankment. This paper provides a method to evaluate these deformations, and calculation examples using data from line sections of the Chum-Labytnangi Railway in northwestern Russia. It also discusses several methods of embankment stabilization, including the use of vertical thermosiphons. |
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| Keywords: | permafrost railway plastic flow embankment stabilization methods thermosiphons |
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