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Cut and cover construction

In difference to the mining technique of a tunnel, the cut-and-cover method takes place in the open underground. The tunnel geomembrane is placed loosely on the protection geotextile, which is installed first onto the sealing carrier layer...
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Offene Bauweise

Mining construction

The mining construction is the typical construction for Tunnels in the underground. We principle differentiate between periodic Tunnel driving and continuous Tunnel driving. In both variants, the use of tunnel sealing systems with geomembranes is possible.
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Geschlossene Bauweise