Tunnel multi gallery

Abstract

Railway tunnel of circular section with two lines, constructed with tunnel boring machine, having a separating wall, disposed at the middle of the tunnel, and a slab, placed slightly over the bottom of the tunnel, forming two independent and isolated railway galleries, disposed side by side, one for each line, and a service gallery. The separating wall is resistant to fire and to the piston effect of the trains, and disposes of large openings, provided with fire doors, regularly spaced along the length of the tunnel. The slab disposes of openings, placed close to the circular wall, on both sides and regularly spaced and protected with fire devices of box type. The service gallery is provided with emergency vehicles of shuttle type, which may circulate suspended from the slab.

1 . Railway tunnel of circular section with two lines, characterized by having a separating wall, placed at the middle of the tunnel and at all height, resistant to fire and to the piston effect of the trains, provided with large openings, regularly spaced along the length of the tunnel and equipped with fire doors, forming two independent and isolated railway galleries, disposed side by side. 
   
   
       2 . Tunnel according to  claim 1 , characterized by having a slab, placed slightly over the bottom of the tunnel and at its all width, placed close to the circular wall, on both sides and regularly spaced, and provided with openings protected with fire devices of box type, creating a service gallery, completely isolated. 
   
   
       3 . Tunnel according to  claim 2 , characterized by the fire devices of box type to be provided with escape doors and interior stairs, allowing for safe passage of people between the railway galleries and the service gallery. 
   
   
       4 . Tunnel according to  claim 2 , characterized by the service gallery to be provided with emergency vehicles of shuttle type, which may circulate suspended from the slab, allowing for local access and the safe evacuation of people.