Research Article
Nov 1981
Coupled Heat and Water Flows Around Buried Cables
Publication: Journal of the Geotechnical Engineering Division
Volume 107, Issue 11
Abstract
Theoretical and experimental studies of heat flow and moisture movement under thermal gradients are described with particular emphasis on flows around buried electrical transmission cables. A one-dimensional finite difference computer program for analysis of coupled heat and water flows in layered systems based on the Philip and DeVries theory is developed. Theoretical analysis indicate that the most important parameters affecting rate and amount of moisture migration away from buried heat sources are the sources temperature and the soil type. A field test was conducted to evaluate the heat and moisture flow predictive methods. The results showed that water content predictions using the coupled flow computer program match poorly with the actual values, and that predicted values are very sensitive to the soil properties used. A finite element two-dimensional computer program is used to predict the variation of temperature distributions around the buried cable with time after initiation of cable heating. The results show very good agreement between measured and predicted temperature contours.
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Published In
Journal of the Geotechnical Engineering Division
Volume 107 • Issue 11 • November 1981
Pages: 1461 - 1487
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Nov 1981
Published online: Feb 11, 2021
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Authors
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Omar N. Abdel-Hadi, AM.ASCE
Geotechnical Engr., Geotechnical Consultants, Inc., San Francis co, Calif
James K. Mitchell, F.ASCE
Prof. and Chmn., Dept. of Civ. Engrg., Univ. of California, Berkeley, Calif. 94720
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.