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Site supervision
- double-track railway tunnels
- length: 3,050m
- total cost: EUR 158.7 M
- construction period: 2006-2011
Side wall drift in soft ground.
Two adit shafts, depth 30m
Cross section 132mē and 145mē
Tunnel drifts under built-up area with overburden ranging from 6 to 20m
Groundwater lowering by means of some 200 wells (gravitational and vacuum)
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