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

Author(s) : HU X. D., YU J., REN H., et al.

Type of article: Article

Summary

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.

Details

  • Original title: Analytical solution to steady-state temperature field for straight-row-piped freezing based on superposition of thermal potential.
  • Record ID : 30020907
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 111
  • Publication date: 2017/01/25
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2016.09.058

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