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Solution analytique pour le champ de température stationnaire pour la congélation par canalisation droite, basée sur la superposition du potentiel thermique.

Analytical solution to steady-state temperature field for straight-row-piped freezing based on superposition of thermal potential.

Auteurs : HU X. D., YU J., REN H., et al.

Type d'article : Article

Résumé

The existing analytical solutions to steady-state temperature field for straight row-piped freezing in artificial ground freezing cover single-piped, multi-piped, single-row-piped and double-row-piped freezing, yet they are not sufficient to meet the needs of construction projects because triple-row-piped or even multi-row-piped freezing are increasingly adopted. In this paper, the original engineering problems of the temperature field of single-piped and row-piped freezing are firstly converted to the solving of a plain Laplace equation under specified boundary conditions. Based on superposition of thermal potential, the analytical solutions to steady-state temperature field for single-piped, single-row-piped, double-row-piped freezing are deduced in succession and then the solution for triple-row-piped freezing is obtained, which is then validated through comparison with the thermal numerical analysis. Furthermore, the formula for calculating the thickness of triple-row-piped frozen soil wall is proposed, which is important in construction management of artificial ground freezing.

Détails

  • Titre original : Analytical solution to steady-state temperature field for straight-row-piped freezing based on superposition of thermal potential.
  • Identifiant de la fiche : 30020907
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 111
  • Date d'édition : 25/01/2017
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2016.09.058

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