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Rail rules for the Swiss
12 December, 2000
Felix Amberg spoke about the overall concept of the Alp base tunnels. Aspects of planning, design and construction were described. The presentation included a detailed appraisal of the 57km long Gotthard base tunnel.
Micro modifications give macro improvements
12 December, 2000
After over 15 years of development, microtunnelling is now practically a mature technology but some improvements are still being made.
Tunnelling Through Cork
12 December, 2000
Contractor JV, Nuttall/Ascon is using unusual techniques during the construction of a 2.6km long TBM driven sewer relief tunnel in Cork City, Ireland. Associate editor, Tris Thomas visited the site and reports on methods and progress to date.
Jet propelled clean up
12 December, 2000
Tunnel renovation includes a wide range of cleaning, maintenance and report works. A typical scheme recently was a 20km long water transfer tunnel in eastern England. But the machine that did it was far from typical, writes Mike Lill of Delta Civil Engineering.
Repair, refurbish or replace?
12 December, 2000
Many tunnels built in the 19th century are still in service, but changes of use, loadings and the gradual deterioration of the structures by modern pollutants has meant that these tunnels require on-going maintenance or complete refurbishment to extend their usefulness. Gareth Mainwaring, principal engineer with Mott MacDonald's underground works and geotechnical team explains
London line up
12 December, 2000
Privatisation timetable
12 December, 2000
Under new management
12 December, 2000
The final choice is being made this month on the consortia taking over responsibility for the now to be privatised tunnel and infrastructure assets of the world's oldest and most complex metro – the London Underground. Mike Winney reports on the tunnel work that might be required.
Operation Dartford
12 December, 2000
Replacing decaying structures in road and rail tunnels is becoming an increasingly significant workload sector. Editor, Adrian Greeman looks at one such project, the renewal of the road deck in the UK's Dartford tunnels.
Mont Blanc fire guard
12 December, 2000
Few refurbishments could have more significance than that for the Mont Blanc tunnel, closed since the devastating fire tragedy last year. Intensive work to rebuild it for safety is starting.
Hong Kong design award
12 December, 2000
Pressurised pipeline job
12 December, 2000
Malaysian tunnel
12 December, 2000
Ecuador traffic plan in gear
12 December, 2000
Building starts on fire refuges at Mont Blanc
12 December, 2000
Swedish lining
12 December, 2000
Lire-Sud on schedule for 2001 boring
12 December, 2000
Breakthroughs made on Hong Kong sewer
12 December, 2000
Amco acquisition
12 December, 2000
Shanghai expansion
12 December, 2000