Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)

Influence of Thermal Insulation on Temperature Mode of Multiple-Frozen Grounds Based on Main Gas Pipeline

Authors
А.V. Stepanov, V.М. Efimov, I.I. Rozhin, F.Е. Popenko, А.А. Stepanov
Corresponding Author
А.V. Stepanov
Available Online August 2019.
DOI
https://doi.org/10.2991/isees-19.2019.148How to use a DOI?
Keywords
freezing; thawing; gas pipeline; heat calculation; heat exchange.
Abstract

The paper examines the process of heat exchange of soil mass with a gas pipeline and mathematical modeling. It involves seasonal changes in heat exchange conditions on the surface as well as cyclical changes in the temperature of the transported gas. The mathematical formulation for dynamics of two-dimensional temperature field in soil mass is made based on general formulation of Stefan problems. The process of heat exchange of soils mass with a gas pipeline and outside ambient air is described by the differential heat equation that describes the distribution of heat in water-saturated soil and takes into account "water-ice" phase transition. Based on the results of the computational experiment, melting and freezing halos and soil base temperature in the selected section of the gas pipeline were determined. These values are necessary to determine deformations of soil base, which characterize its spatial stability and strength to precipitate or ascent phenomena. The paper provides measures for engineering protection of the pipeline.

Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)
Series
Atlantis Highlights in Material Sciences and Technology
Publication Date
August 2019
ISBN
978-94-6252-769-0
ISSN
2590-3217
DOI
https://doi.org/10.2991/isees-19.2019.148How to use a DOI?
Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - А.V. Stepanov
AU  - V.М. Efimov
AU  - I.I. Rozhin
AU  - F.Е. Popenko
AU  - А.А. Stepanov
PY  - 2019/08
DA  - 2019/08
TI  - Influence of Thermal Insulation on Temperature Mode of Multiple-Frozen Grounds Based on Main Gas Pipeline
BT  - Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)
PB  - Atlantis Press
SP  - 82
EP  - 88
SN  - 2590-3217
UR  - https://doi.org/10.2991/isees-19.2019.148
DO  - https://doi.org/10.2991/isees-19.2019.148
ID  - Stepanov2019/08
ER  -