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Mitsubishi
  Date 2012
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Which ever way you slice it
27 December, 2012
It is easy to get ‘tunnel vision’ in examining the possible methods of excavation. If engineers were happy with that then disc and roller cutters for hard-rock TBMs would never have been developed as an alternative to drill and blast. Maurice Jones asks what has been tried before and what might still be valid

Time to take charge
19 November, 2012
Tunnels North America editor Nicole Robinson this month looks at the booming Canadian tunnelling market and the mega projects of the US. Last month’s sell out Tunnelling Association of Canada’s conference was a clear indicator of interest in the country and the numerous upcoming hydropower and transport works.

High pressure sea crossing
18 October, 2012
A slurry TBM is cutting through the sands deep under Zhanjiang Bay, China, to provide a crucial water link to and island steelworks. A tight schedule and a 42m head of water are upping the pressure on the project. Tunnels editor Jon Young visits the site

Andean tunnel project proposed
10 October, 2012
A plan to build the longest tunnels in the Americas right through the Andes is being imagined by South American engineers. The mountains create a costly physical barrier for nations ever-more-depended on trade with Asia, US news reports stated earlier this week.

Singapore Power sources funding for cable tunnels
13 May, 2012
Six local and foreign banks have been hired by Singapore Power to provide a SGD 1.5bn (USD 1.2bn) finance loan for its power cable tunnels project.

ESP filtration use and developments
08 February, 2012
Mountainous Japan was the first country to use electrostatic precipitators to filter tunnel air. Arnold Dix of the University of Western Sydney and Atsushi Katatani of Panasonic Ecology Systems give a history of the improvements and use of ESPs in Japanese tunnels