Modeling the Cryogenic Texture Formation Process in the Soil Around the Pipeline

This article is concerned with the study and analysis of heat exchange processes, moisture transfer and cryogenic texture formation in fine dispersed soils when laying and operating underground pipelines. The segregation frost heaving around cold big-diameter pipelines buried in the soil has been in...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-12, Vol.463 (2), p.22025
Main Authors: Aksenov, B G, Stepanov, O A, Fomina, V V
Format: Article
Language:English
Subjects:
Buried pipes
Cryoforming
Frost heaving
Guidelines
Heat exchange
Ice formation
Pipelines
Soil dispersion
Soil investigations
Soil moisture
Soils
Texture
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Summary:This article is concerned with the study and analysis of heat exchange processes, moisture transfer and cryogenic texture formation in fine dispersed soils when laying and operating underground pipelines. The segregation frost heaving around cold big-diameter pipelines buried in the soil has been investigated. The method of modeling the secondary frost heaving is presented. The conditions under which this model is applicable as a result of assumptions made during its construction are described. The model is presented in a stringent mathematical formulation. The checking numerical case has been calculated. The process of ice layers formation graph is given. Under certain conditions one layer can be formed and under the other conditions two layers can be formed. Mostly it depends on the pipe temperature. For this case the guidelines for soil frost heaving prevention are given. The guidelines are general and applicable to other cases.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/463/2/022025