| 摘要 |
The tunnel multi gallery is a tunnel of circular section executed with a tunnel boring machine (1), characterized by possessing a wall (2), disposed at the middle of the tunnel and along all its high, and a slab (3), placed a bit over the bottom of the tunnel, in order to create two independent galleries, disposed side by side, and a service gallery with two cellules. Inside the lateral part of the two galleries and inside the two cellules of the service gallery, vehicles of shuttle type (4) are installed, in order to provide local access in case of accident or fire.
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