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Cut and Cover

Cut-and-Cover Tunnels

Tunnels, retained cuts and top-down excavations - special kinds of traffic structure.

Wherever geology and inner city traffic conditions permit, cut-and-cover tunnels, retained cuts and top-down excavations are preferred for financial reasons. Moreover, almost all access and exit ramps of shield-driven tunnels, which take traffic underground and back to the surface, are also constructed within sheet-piled excavations.

Cut-and-cover tunnels rank high among the numerous traffic route projects carried out by Wayss & Freytag Ingenieurbau AG. Important structures of this kind, either already completed or currently under construction, are the Berlin Inner Ring S21 and the Leipzig City Tunnel, Contract C.

Related Projects

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The 2,800 m long, inner-city tunnel using both bored pile-cover construction method and open construction method relieves a central traffic junction in Munich.

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60.000 m² coherent park area for approximately 40.000 inhabitants – a street tunnel makes it possible.

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Tunnel Kö-Bogen
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Innercity road tunnel in the heart of Dusseldorf creates new space for urban living

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Widderstall Tunnel
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A special procedure allowed for blasting operations with ongoing traffic on BAB 8

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