Search Results: 'Robbins'

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

On the cutting edge
27 December, 2012
The process of mechanical excavation through dry ground, whether hard or soft, is pretty well understood. For ‘mixed’ ground, of whatever form, it is a different matter, especially if it is deep under groundwater. Maurice Jones reports that there is a consequent rush of TBM cutter development activities to gain the best competitive, and cutting, edge

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

At home in the Hoghouse
31 August, 2012
Working on New York’s mega-projects, one Sandhog, Bradley Gill, local 147, shares his experience ‘Shaping’ and helping to build the nation’s largest subway tunnels. Nicole Robinson reportsive

Turkish TBM boom
29 August, 2012
With challenging ground and a fast-growing economy, Turkey is poised to host the world’s toughest tunnel projects. Desiree Willis, technical writer for TBM manufacturer Robbins reports

TBMs advance on mines
15 August, 2012
The Stillwater Mine in Montana is preparing to launch its latest TBM drive. Desiree Willis, technical writer for Robbins, explores the use of TBMs in mining and the upcoming launch

Austin attracts the industry
13 August, 2012
The Southwest and the Rocky Mountain regions aren’t booming with potential for major tunnelling projects. But water scarcity keeps the industry working underground, reports Nicole Robinson

From point A to point B
11 June, 2012
One of the most significant challenges of some projects starts long before the first bucket of earth has been shovelled. Hauling hundreds of tonnes of TBM components to a remote jobsite can make or break a project. Robbins technical writer Desiree Willis reports

High population, low cover
17 May, 2012
In March, Mexico’s sinking capital finished tunnelling its first new metro line in a decade. Robbins technical writer Desiree Willis reports

The Latin dawn
10 May, 2012
South America is one of the waking giants of the global economy, with some analysts suggesting that a future Brazilian superpower could already be rising. Alex Conacher speaks to Rolando Justa, boss of Robbins’ new Chilean office as he sets up shop in the Latin continent