CT bolts being placed to support tunnel walls and ceiling.
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Map showing route of tunnel. -
Ørsta bolt – 37,000 bolts were used in the tunnel’s construction. -
Tunnelling operations underway. Note the conduit services line in the ceiling. -
Engineer on a gantry carrying out a survey of the tunnel ceiling. -
Truck and digger removing spoil from tunnel entrance. -
Slurry cement process underway. -
CT bolts being placed to support tunnel walls and ceiling.
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