Search Results: 'Jacobs'

Bay area breakthrough
12 December, 2013
Excavation of the entire 18,660ft New Irvington Tunnel is complete in San Francisco. On October 8 two crews of miners from the Southland/Tutor Perini JV met underground with a roadheader digging away at the last final feet of rock.

Qatari coup
23 August, 2013
Qatar is preparing to set new records in tunnelling with 26 tBms simultaneously boring 59km of twin bore tunnels creating the first phase of the vital doha metro. technical journalist Bernadette Ballantyne reports

Jacobs Associates expands Vancouver office
04 July, 2013
Jacobs Associates has opened a larger office with locally based staff dedicated to British Columbian (BC) projects. The expansion will help the firm better provide tunnel and underground engineering for hydroelectric, mining, water supply, wastewater, rail, highway, and other transportation projects in the BC and the Western Canadian market, the company said earlier today.

Cleaning up the capital
19 June, 2013
A TBM launch this spring in Washington DC is the first of several to come as the capital cleans up its CSOs. Nicole Robinson looks at the Blue Plains Tunnel.

Under fire under work
13 March, 2013
The risk of fire in tunnels under construction can be reduced in several ways. At the November 2012 BTS meeting Barry O’Donoghue, Mott MacDonald site contract manager; Francois Pogu, Vinci's Lee Tunnel project director; Dave Bulbrook, London Fire Brigade group manager; and Donald Lamont of Hyperbaric & Tunnel Safety reviewed the Storbelt and A86 Socatop tunnel fires, protocol for working with fire brigade and current legislation required for contractors.

Extinction
20 February, 2013
Replacing an outdated sewer will mean tunnelling through a volcano—an extinct one— with unique basalt geology. The City of Honolulu will bid the contract for its wastewater project this spring, Nicole Robinson reports

How low can you go?
20 February, 2013
TBMs have successfully passed beneath the Montlake Cut on Seattle’s University Link Project with only 4m of cover. Andrew Mencke and Lynn Salvati of Jacobs Associates, Seattle, Richard McLane of Traylor Brothers, Seattle, and John Sleavin of Sound Transit, Seattle, explain the design and construction process

Northern Exposure
19 February, 2013
While Seattle is known for its grey drizzly days, the climate for tunnelling is all blue skies. Sound Transit will bid another major tunnelling contract for its regional mass transit system this March, Nicole Robinson reports

Queensland tunnel design contract awarded
23 January, 2013
Jacobs Associates is providing tunnel design to Thiess Tunnelling on the Narrows Marine Crossing Project, a 4.4km long tunnel that will be constructed under a body of water known as 'The Narrows', the company stated earlier this month. The tunnel will house the Santos GLNG gas transmission pipeline and is expected to begin early this year.

BART awards retrofitting study for Berkeley Hills Tunnel
11 January, 2013
A feasibility study contract to evaluate various alternatives to retrofit the Bay Area Rapid Transit (BART) Berkeley Hills Tunnel so that train service can be re-established quickly following an earthquake event on the Hayward fault was awarded to Jacobs Associates, the company announced last week.