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Rock cooling in the Simplon tunnel. Modelling with analytical calculation.

Refroidissement de la roche dans le tunnel du Simplon. Modélisation par calcul analytique.

Author(s) : PAHUD D., VUATAZ F. D., BIANCHETTI G.

Type of article: Article

Summary

Two drillings have helped to study rock cooling in the tunnel since 1902. Since cutting through, the rock around the tunnel has been cooled by the acceleration of underground water and by induced air currents in the two galleries due to passing trains and the barometric pressure difference between the north and south sides of the Simplon massif. The results of the simulation give the heat flow in the tunnel and the geothermal gradients under the tunnel. The calculated thickness of the cooled rock under the tunnel was 250 meters in 1990.

Details

  • Original title: Refroidissement de la roche dans le tunnel du Simplon. Modélisation par calcul analytique.
  • Record ID : 1995-0554
  • Languages: French
  • Source: Ing. Archit. suisses - vol. 119 - n. 25
  • Publication date: 1993/11/24
  • Document available for consultation in the library of the IIR headquarters only.

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