DEVELOPMENTS IN IMMERSED TUNNELLING IN HOLLAND
Holland has 22 immersed tunnels (14 road, 5 rail and 3 utilities tunnels). Another three are under construction, and more are foreseen. The tunnels are of the concrete type, ie constructed without a steel shell. The paper describes developments in technology and in design philosophy since the first immersed tunnel was completed 52 years ago. These developments include, amongst others: the introduction of the Gina rubber gasket between elements; the division of elements into sections divided by flexible joints; the application (if possible) of longer elements (up to 268 m); the use of precast sections for tunnels that have a small cross-section; the omission of the watertight lining (made possible by cooling the concrete of the walls during the first days after pouring); various foundation methods (eg sand flow instead of sandjet system; piled foundations when necessary); the use of the excavation for the open ramps (or the part of the tunnel built on land) as a casting basin for the elements; the changed approach to casting basins now that well pumping is usually forbidden; and the transport of the elements across shallow locations and across the sea. It is emphasized that the current state of immersed tunnel technology is the result of a continuous international exchange of ideas and experiences. (A)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/08867798
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Corporate Authors:
The Boulevard, Langford Lane
Kidlington, Oxford United Kingdom OX5 1GB -
Authors:
- GLERUM, A
- Publication Date: 1995-10
Language
- English
Media Info
- Features: References;
- Pagination: p. 455-62
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Serial:
- Tunnelling and Underground Space Technology
- Volume: 10
- Issue Number: 4
- Publisher: Elsevier
- ISSN: 0886-7798
- Serial URL: https://www.sciencedirect.com/journal/tunnelling-and-underground-space-technology
Subject/Index Terms
- TRT Terms: Concrete; Construction management; Design; Excavation; Excavations; Tunnel lining; Tunnels; Underwater construction; Underwater structures; Waterproofing
- Geographic Terms: Netherlands
- ITRD Terms: 4755: Concrete; 3666: Construction method; 9011: Design (overall design); 5155: Excavation (process); 8078: Netherlands; 3374: Tunnel; 3385: Tunnel lining; 3626: Underwater; 3375: Waterproofing
- Subject Areas: Bridges and other structures; Construction; Design;
Filing Info
- Accession Number: 00715883
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD
- Created Date: Jan 31 1996 12:00AM