Rotterdam Metro Tunnels
TOTAL IMMERSED LENGTH: 1,040 m under the Nieuwe Maas and 1,815 m between Central Station and Leuvehaven
HEIGHT: 6.21 m
WIDTH: 10 m
ENVIRONMENTAL CONDITIONS: Construction in high ground water table. Construction through densely populated urban area
FABRICATION METHOD: Made of 15 m sections temporarily post-tensioned together into 90 m elements, in a casting basin excavated near the site.
HEIGHT: 6.21 m
WIDTH: 10 m
ENVIRONMENTAL CONDITIONS: Construction in high ground water table. Construction through densely populated urban area
FABRICATION METHOD: Made of 15 m sections temporarily post-tensioned together into 90 m elements, in a casting basin excavated near the site.
Rotterdam,
Netherlands
Municipality of Rotterdam
Christiani & Nielsen N.V. and Hollandsche Beton Maatschappi; sinking was done by the client’s organization
The client, Christiani & Nielsen and Hollandsche Beton
8 - 90 m 28 - 75 m
1,040 m under the Nieuwe Maas and 1,815 m between Central Station and Leuvehaven
Project construction
1966-04-30
36
Two tubes; one track in each tube
6.21m
10m
Because of high ground water and favorable alignment conditions, 24 elements were
floated in along the land portion of the Metro system. This included partial station sections
as well. Inflatable adjustable pile caps were used to support the tunnel elements
floated in along the land portion of the Metro system. This included partial station sections
as well. Inflatable adjustable pile caps were used to support the tunnel elements
Made of 15 m sections temporarily post-tensioned
together into 90 m elements, in a casting basin excavated
near the site.
together into 90 m elements, in a casting basin excavated
near the site.
Part of fabrication operation
Construction in high ground water table. Construction through densely populated urban
area
area
Catamaran barges were used for the water crossing. Monorails and hoists were
suspended from the upper bracing for the elements placed inside the trenches on land.
Water ballast tanks were used for both areas to lower the elements.
suspended from the upper bracing for the elements placed inside the trenches on land.
Water ballast tanks were used for both areas to lower the elements.
Gina rubber joints
Bituminized felt-covered glass covered with fiberglass fabric. Top and bottom portions
were protected with concrete attached with dowels.
were protected with concrete attached with dowels.
Pile foundations were used. Adjustable pile caps inflated with grout were used to
support the elements
support the elements
Reinforced