Main characteristics

It is a false tunnel built in concrete, with dimensions equivalent to a two lane road tunnel, and has two ventilation stations, a lower gallery for emergency and services, and three emergency exits. It has also a removable false ceiling for reproducing different ventilation conditions.

Main technical data are:

  • Length: 600 m
  • Width: 9,50 m
  • Height : 8,12 m
  • Cross-section (without ceiling): 66 m2
  • Minimum radius: 400 m
  • Longitudinal gradient: 1 %
  • Transversal gradient: 2 %
  • Emergency gallery: 4 m width by 2,50 m height
  • Emergency exits: 3 (one each 150 m)
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Cross section of test tunnel
    

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Ventilation systems

The tunnel ventilation has been designed with a maximum flexibility, so that virtually any ventilation system can be tested.

The equipment available are:

  • Longitudinal
  • Semitransversal
  • Mixed systems
  • "Saccardo"

Longitudinal ventilation

14 jet fans of 45 KW.

Semitransversal ventilation

  • 2 reversible and speed variable axial fans of 355 KW each, with a total capacity of 160 m3/s.
  • Removable false ceiling.
  • 11 extraction dampers of 12 m2 cross-section.

"Saccardo"

  • 2 axial fans of 355 KW (injection) and 315 KW (extraction), both for a 120 m3/s air flow.

Other equipment

The tunnel is also equipped with:

  • Water pressure line of 100 mm diameter, with hydrants each 50 m. inside the experimental tunnel. The water supply system has a capacity of 600 m3 and includes a 9.5 bar, 72 m3/h pressure pack.

  • Liquid effluent collecting system with a 50 m3 settling basin.
  • 275 W luminaries at both sides, one each 15 m.
    

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Plan view of test tunnel

“San Pedro de Anes” Experimental Center 33189 Siero (Asturias) SPAIN
Phones: +34 985 74 16 45/+34 985 74 42 26 - Fax +34 985 74 01 34
e-mail: info@tunneltest.com

Copyright (c) TST. Tunnel Safety Testing S.A.

GPS: Latitude 43º 25’ 34 ‘’ - Longitude 5º 41’ 50’’



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