Search Results: 'Hitachi Zosen'

Hitachi fly in for Seattle TBM fix
25 February, 2014
Seattle Tunnel Partners (STP), the design-build contractor for the Alaskan Way Viaduct replacement tunnel in Seattle, will dig an access shaft to repair or replace the TBM seal. Client Washington State Department of Transportation (WSDOT) said Friday experts from TBM manufacturer Hitachi-Zosen were flying from Japan to finalize the repair plan.

What goes up
19 December, 2013
Ensuring the correct lifting strategy is vital to the success of any tunnelling project, reports technical journalist Bernadette Ballantyne.

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

Seattle Surge
19 February, 2013
The west coast of the US is home to a strong tunnelling market. Tunnels North America looks at Seattle in particular this issue, but let there be no doubt, other cities in the region are just as busy underground, Nicole Robinson reports

TBM LIFTS
19 February, 2013
Robbins technical writer Desiree Willis looks at the pivotal role of cranes in TBM assembly

Quake proof
21 November, 2012
Following the 2001 quake, it was feared that another major incident could cause Seatle's fragile highway viaduct to ‘pancake’. Rhian Owen reports on the replacement of the viaduct with more stable infrastructure: a tunnel

Students asked to name world's largest TBM
01 November, 2012
Washington State Department of Transportation (WSDOT) has asked students in the state aged up to age 18 to find a new name for the State Route 99 TBM, which is currently under construction in Japan.

Traditional shields
15 October, 2012
Japan-based Hitachi Zosen has been manufacturing TBMs since 1967. Yasuharu Hanaoka of the manufacturer’s industrial machinery business unit notes the decline in the open, semi mechanized shields that the company did brisk business within previous decades, as closed EPBMs and slurry machines have come to prominence. He explores the technology, and gives a recent example of a ‘traditional method’ shield in operation

Advance below the bay
24 May, 2012
The EPBM cutting below the San Francisco Bay is smashing advance rate expectations as the team battle with environmental limitations and brace for tougher ground. Rhian Owen reports

To prevent a pancake
22 May, 2012
Following the 2001 quake, it was feared that another major incident could cause the fragile Alaskan Way Viaduct to ‘pancake’ from the shaking. Rhian Owen reports on the replacement of the viaduct with more earthquake-resistant infrastructure – a tunnel

First U220 breakthrough
03 April, 2012
Breakthrough was reached on the first bore of the U220 University Link Light Rail in Washington, D.C., US.

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

From sea to shining sea
06 February, 2012
Demand for tunnels in North America is strong to meet public transportation and water conveyance needs. Nicole Robinson highlights projects in the region

Hitachi Zosen signs Alaskan Way tunnel contract
18 October, 2011

Precast in practice
18 October, 2011
Water shortages, rogue quarries and supply constraints are tackled at the Peenya precast plant in India. Alex Conacher speaks with Yogini Vimalanathan of Mott MacDonald and Russell Brown of CEC

WSDOT moves forward on Alaskan Way tunnel
25 August, 2011

Wishful thinking
23 August, 2011

Dynamism of the East
22 August, 2011
Running along the fiery Asia Pacific coast are some of the most explosive tunneling markets in the world. Hong Kong is booming, Japan is storming ahead in innovation, Malaysia is clamping down on corruption and Singapore is a hot bed of activity. Alex Conacher tries to keep up

Seattle votes to build tunnel
19 August, 2011

Bangalore’s first bore
20 July, 2011
The first slurry TBM to be used in India has launched on the Bangalore east-west metro. Jon Young attends the launching ceremony