Influence of Thermal Insulation on Temperature Mode of Multiple-Frozen Grounds Based on Main Gas Pipeline
- 10.2991/isees-19.2019.148How to use a DOI?
- freezing; thawing; gas pipeline; heat calculation; heat exchange.
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.
- © 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 - 10.2991/isees-19.2019.148 ID - Stepanov2019/08 ER -