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Actual states and analysis of frost penetration depth, in lining and earth, of cold region tunnel.

Author(s) : OKADA K.

Type of article: Article

Summary

Daily fluctuations and maximum values of frost penetration depth in a few actual tunnels are simulated by a tunnel ground model, which is a one-dimensional nonsteady state heat convection-conduction difference equation which considers the latent heat. The analytical results agree with the measured ones. Using the tunnel ground model, behaviours of daily fluctuations, etc, of frost penetration depth are analyzed against a yearly periodic change of atmospheric temperature in tunnel.

Details

  • Original title: Actual states and analysis of frost penetration depth, in lining and earth, of cold region tunnel.
  • Record ID : 1993-1675
  • Languages: English
  • Source: Q. Rep. RTRI - vol. 33 - n. 2
  • Publication date: 1992/05
  • Document available for consultation in the library of the IIR headquarters only.

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