Search Results: 'Hitachi Zosen'

Hitachi Zosen TBM to excavate Alaskan Way tunnel
18 July, 2011

Third TBM to launch on Seattle light rail tunnel
16 June, 2011

Choices for excavation–part 2
15 June, 2011
In this second and final part of our review of the extended capabilities of modern tunnel excavation methods, we examine the leading role of tunnel boring machines. Maurice Jones contacted some leading TBM manufacturers for their views and developments to expand the envelope of capabilities

Of the rising sun
14 June, 2011
An economy in recession, a landscape reeling from an unprecedented natural disaster and, as yet, unknown damage to subterranean structures. Yet no country could be as well-prepared as Japan to take hits on both these fronts. With the help of the Japanese Tunnelling Association (JTA), Alex Conacher explores the situation in North East Asia, with focus on a Japan determined to hit the ground running

Below the Bay
10 June, 2011
Earthquake-delayed TBM delivery, environmental concerns and alignment limitations are taken on the chin as the San Francisco Public Utilities Commission replaces the Hetch Hetchy Regional Water System. Nicole Robinson reports

The tale of three cities
10 June, 2011
The market for tunnelling in North America is strong but also struggling due to political and financial pressures, and more recently public outcry. Nicole Robinson profiles tunnelling projects in New York, Seattle and Toronto

Tunnelling gets underway on Bangalore Metro
23 May, 2011

Tunnelling starts on Seattle light rail line
19 May, 2011

Earthquake delays Bay Tunnel delivery
01 April, 2011

A sinking success in Istanbul
19 October, 2010
Conceptual design drawings, dating back to Turkey’s Ottoman Period, show ambitious plans for a tunnel immersed under the Bosphorus Strait in Istanbul. It may have been a pipe dream back then, but that is no longer the case. Nicole Robinson visits the immersed tunnel of the Marmaray Project

A city steeped in history breaks new ground
19 October, 2010
Constructing an underground rail connection for the European and Asian sides of Istanbul will improve traffic and environmental conditions in the city, once completed. Along the way, contractor Taisei and joint venture partners are employing NATM, TBM, immersed tube and cut and cover excavation methods to build the Bosphorus Crossing, Nicole Robinson reports

So San Francisco doesn’t go thirsty
05 August, 2010
Like most infrastructure in the San Francisco area, the Crystal Springs By-pass Pipeline can be affected by seismic activity, so the risk assessment of its design, safety and functionality has to take this into consideration. It was decided that the risk, from landslide damage to the pipeline in particular, was too high to rely on the original structure, so an alternative by-pass tunnel was decided upon as just one, but a vital, part of the Water Supply Improvement Progam (WSIP) undertaken by the San Francisco Public Utilities Commission (SFPUC). Maurice Jones reports on its completion.

Marmaray TBMs still in stop-go
12 February, 2009

Crossing the Bosphorus and beyond
05 June, 2008
Daniel Horgan and Douglas Madsen of Parsons Brinckerhoff presented a review of the Bosphorus Crossing project at the March meeting of the British Tunnelling Society

...as first TBMs advance
26 June, 2007

Forward thinking in Bangkok
18 April, 2006
T&TI editor, Tris Thomas travelled to Thailand to find out how contractor See Sang Karn Yotah [1979] Co. Ltd. constructed 17.5km of tunnel with multiple curves in just over a year

One down, three to go
31 October, 2005

First of five Thai tunnels finished
05 May, 2005

Handling tight curves in Bangkok
01 May, 2004
Robert Moncrieff, project manager with JV leader See Sang Karn Yotah, describes the construction of a recently commissioned 13.7km long water tunnel using four EPBMs under Bangkok's busy streets

Triumph for Thai water tunnel
01 December, 2003