Paper Title:
Analysis of Underground Pipelines Subjected to Frost Heaving Forces
  Abstract

This paper examined the fundamental problem of an interaction between a soil medium that experiences frost heave in a closed system and an underground pipeline. The coupled thermal transfer and structural analysis, considering the material nonlinearity of freezing soil, for an underground pipeline subjected to the low cyclic load was focused on the development of computational scheme by introducing the effective heat capacity concept and the effective thermal expansion coefficient into the study. The effective heat capacity model in the thermal transfer analysis took into consideration the phase-change effect in the frozen fringe of a soil medium. The comparative analyses between the theory and the actual performances were valuable in establishing a level of confidence in the application of introduced theory to the field. The numerical results in the paper illustrated the influence for the frost heave of a soil medium on the temperature-dependent development of stress fields on metallic underground pipe walls in South Korea.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
1241-1252
DOI
10.4028/www.scientific.net/KEM.297-300.1241
Citation
W. K. Song, J. W. Rhee, "Analysis of Underground Pipelines Subjected to Frost Heaving Forces ", Key Engineering Materials, Vols. 297-300, pp. 1241-1252, 2005
Online since
November 2005
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Price
$32.00
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