Search Results: 'Hitachi Zosen'

The big City move
22 March, 2017
TBMs are being built on an ever-larger scale, pushing the limits our congested cities can accommodate. Rhian Owen speaks with two freight forwarding companies about the obstacles they face when machines move through large cities

Big city move
18 August, 2016
TBMs are being built on an ever larger scale, pushing the limits our congested cities can accommate. Rhian Owen speaks with two freight forwarding companies about the obstacles they face when machines through large cities

Seattle Start up
25 May, 2016
repair work for giant TBM “Bertha" finished earlier this year. Patrick Reynolds reports on the two-year-long process

Seattle start up
18 February, 2016
Repairs are finished for giant TBM “Bertha". Patrick Reynolds reports on the two-year-long process

San Francisco success
27 May, 2015
The first water passed through the 8kmlong San Francisco Bay Tunnel in October 2014, well ahead of an original 2015 schedule. The project also came in well under budget, Adrian Greeman

San Francisco success
03 February, 2015
The first water passed through the 8km-long San Francisco Bay Tunnel in October 2014, well ahead of an original 2015 schedule. The project also came in well under budget, Adrian Greeman reports.

The Seattle Saga
27 June, 2014
After six months of tunnelling standstill, construction is tarting on an access shaft to repair the TBM mining the SR 99 bore in Seattle, the largest diameter machine in the world. Nicole Robinson explores the machine’s initial journey and downtime.

How the west was won
27 June, 2014
Tunnelling work is as diverse and plentiful as the geography in the West Coast.

Shake and bake – Seismic and Geoelectric Prediction
26 March, 2014
Tucked in a corner of Bauma 2013, Geo Exploration Technologies set up their stand to showcase Bore Tunnelling Electrical Ahead Monitoring (Beam). The geoelectric system, developed a decade on from the introduction of geo-seismic predictive technology to the tunnelling industry, has a few key advantages claimed, while Amberg’s offering of Tunnel Seismic Prediction gets a revamp. Alex Conacher reports

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

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

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

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