| Hydraulic formwork operations for the Henndorf Tunnel |
| The result of building the new by-pass by the consortium of Arge Wayss & Freytag, Held & Francke and Habau should realize a 75 % reduction in traffic through Salzburg city Henndorf. |
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Type of building:
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Tunnel
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Method:
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cut-and-cover construction method
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Location:
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Henndorf
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Formwork system:
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Doka heavy-duty supporting system SL-1, Large-area formwork Top 50
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Duration of insert:
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10 months
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Purpose of the tunnel:
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By-pass to release traffic
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Section:
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circular
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inside width:
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10.44 m
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inside height:
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7.11 m
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Formed tunnel length:
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276 m + 456 m
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Steps:
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61
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Centre piece of the construction was a tunnel with a length of 1,418 m constructed by mining method. The North and South tunnels were constructed using a cut-and-cover construction method. Both 276 m and 456 m long sections utilized a full hydraulic tunnel formwork carriage from Doka.
Last year Held & Franche had already concreted the 1,100 m long avalanche protection construction “Erlachgalerie” in the Tyrolean Defreggental with a Doka tunnel formwork carriage. Held & Francke had purchased this formwork carriage earlier. The component parts were reused for the new formwork solution in the Henndorf tunnel.
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Consortium Tunnel Henndorf
Wayss & Freytag, Habau, Held & Francke
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Organisation in Country:
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Österreichische Doka
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Technical Manager:
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Mr. Markus Stastny
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More on this topic |
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Products in use |
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