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Lining
Solutions for partial- or full- pressure shaft linings are available.
Purpose designed equipment allow effective and efficient insertion and welding of steel pipe liners.
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Different solutions for lining and fastenings are based on evaluations of the actual geological conditions, rock pressure and cover/stability along the tunnel routing.
The two examples under shows a partial lining covering the lower section of the tunnel, and a full lining covering the whole tunnel:


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