Smoke extraction shaft
Cannstatt
Germany
			Project details
- Customer: Arge Tunnel Cannstatt S21
 - Building owner: DB Netz AG
 - Construction time RSB: November 2019 – February 2020
 - Dimensions:
Cylinder: 6,2 m diameter / 40 m height - Special features:
Large diameter shaft, various sections with recesses and flats. 
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