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DOI: 10.15862/09TS417 (https://doi.org/10.15862/09TS417)

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Makarov A.S., Kraev A.N., Tverdokhleb S.A., Shankhoev Z.Sh. [Results of experimental research and numerical modeling of plane-parallel freezing of a soil sample in an experimental test-bed] Russian Journal of Transport Engineering, 2017, Vol. 4, No. 4. Available at: https://t-s.today/PDF/09TS417.pdf (in Russian). DOI: 10.15862/09TS417

Results of experimental research and numerical modeling of plane-parallel freezing of a soil sample in an experimental test-bed

Makarov Aleksei Sergeevich
Industrial university of Tyumen, Russia, Tyumen
E-mail: Mak351218@mail.ru

Kraev Alexey Nikolaevich
Industrial university of Tyumen, Russia, Tyumen
E-mail: kraev_aln@mail.ru

Tverdokhleb Sergei Anatolyevich
Industrial university of Tyumen, Russia, Tyumen
E-mail: tverdokhleb.s.a@yandex.ru

Shankhoev Zurab Shabazgireevich
Industrial university of Tyumen, Russia, Tyumen
E-mail: zurab_shanhoev@mail.ru

Abstract. In this article authors gave a brief overview of, all-season highways construction with a hard surface on permafrost soils, problems. For the purpose of economic efficiency of carrying out this researches, of the referred highways at seasonal freezing and thawing, the authors propose to conduct a series of experimental works in laboratory conditions. This article provides a description of the experimental test-bed that allows modeling of given temperature and humidity conditions of the highway foundation on permafrost soils with given thermophysical characteristics of the foundation soil. This article presents the technique, of carrying out the investigation of the plane-parallel freezing of a soil sample in the laboratory, with given quasi-stationary temperature regime and conditions. In order to verify the results of the experiment in laboratory conditions, it was proposed to perform a numerical freezing simulation of an identical base. The authors of this article performed a quantitative simulation of complete freezing of an analogical soil sample, in the experimental test-bed. This was achieved by using a bilayered explicit difference scheme, including the balance method and with the enthalpy formulation of the problem. This report provides the results and of the experiment with given laboratory conditions and compilation of quantitative simulation in the experimental test-bed. This report reveals the most probable causes of the diversification between the results of experimental and numerical modeling. The main conclusions on the conducted researches are formulated in this report.

Keywords: highway; permafrost soil; experimental research; quantitative simulation; temperature; clayey soil; complete freezing of soil; water-saturated soil

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