SYDNEY'S GROWING UNDERGROUND NETWORK
This article describes the design and construction of twin tunnels in Sydney, Australia. The tunnels are designed to improve air quality and traffic congestion in the city. The project is being managed by a private company under a build-operate-maintain-transfer contract. The tunnel design is complex for such a relatively short tunnel system and involves a total of 8 km of driven tunnels. The main part is comprised of twin traffic lane tunnels, although many of the access ramps are single lane plus a breakdown shoulder. A ventilation tunnel runs along the full length with a shaft connecting it to the eastbound road tunnel. To improve air quality, air will be released from the tunnel via a single 60m high ventilation stack located at the western end of the tunnel. The separate ventilation tunnel will come into play during congested conditions or when there is an incident in the tunnel. At these times, air from the eastbound road tunnel will be transferred into the ventilation tunnel to the ventilation stack.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/25073860
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Corporate Authors:
TRL
Crowthorne House, Nine Mile Ride
Wokingham, Berkshire United Kingdom RG40 3GA -
Authors:
- Bateman, G
- Publication Date: 2005-3
Language
- English
Media Info
- Features: Photos;
- Pagination: p. 51
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Serial:
- World Highways/Routes du Monde
- Volume: 14
- Issue Number: 2
- Publisher: Route One Publishing Limited
- ISSN: 0964-4598
- Serial URL: http://www.worldhighways.com
Subject/Index Terms
- TRT Terms: Air quality management; Build operate transfer; Case studies; Highway design; Road construction; Tunnel shafts; Tunneling; Tunnels; Ventilation systems
- Geographic Terms: Sydney (Australia)
- Subject Areas: Bridges and other structures; Construction; Design; Highways; I25: Design of Tunnels; I54: Construction of Tunnels;
Filing Info
- Accession Number: 00989086
- Record Type: Publication
- Files: TRIS, ATRI
- Created Date: Apr 18 2005 12:00AM