Search Results: 'Halcrow'

Panxi blasts through in China
10 December, 2004

Panxi Expressway Breaksthrough
16 November, 2004

London's segmental lining development
01 October, 2004
Tunnel engineering technology evolves and improves with every project. Several projects in the UK that illustrate some recent developments in segmental tunnel lining technology include Section 2 of the Channel Tunnel Rail Link (CTRL), and Crossrail's Moorhouse Shaft, in London. Technical journalist, Chris Webb, discusses some of London's modern and traditional segmental lining methods

World's largest bore gets go-ahead
01 September, 2004

Tunnels in the sky - ChongZun Express
01 July, 2004
Low-lying cloud and precipitous access routes are not often major hazards in tunnel construction, but on a major new highway scheme in China they are just some of the routine challenges being overcome to build 'tunnels in the sky'. Nick Swannell, associate director of Halcrow China Ltd, Yuhua Gong, senior engineer, and Guiming Wang, engineer, for the Guizhou Expressway Development Corporation, review current tunnelling progress on the ChongZun Expressway, which at its peak has had some 55 different tunnel drives under construction at the same time

Fire considerations on the CTRL Tunnels
01 May, 2004
The UK's Channel Tunnel Rail Link Section 2 features long stretches of twin bore rail tunnel under London. Eddie Woods, RLE London Tunnels Area project engineer, and Arup director, and Paul Scott, Arup associate, describe the cross passage design and fire considerations for the lining

MTR shortlist imminent
18 March, 2004

Scottish EARL goes under
01 March, 2004

Sacred stones tunnel debate
01 March, 2004

Glendoe tenders go ahead
01 February, 2004

Glendoe design approved
15 January, 2004

CTRL contract 320 TBM finishes first
01 November, 2003

Box jacking under the M1
01 September, 2003
Jacked box tunnelling was used for the first time under a live motorway in the UK at Junction 15A on the M1 Motorway, when a vehicular underbridge, 14m wide, 8.5m high by 45m long was installed with 1.6m of cover to the motorway. On the 19 June British Tunnelling Society members were privy to a detailed explanation of the project

Making difficult decisions
01 July, 2003

Managing tunnel sustainability
01 May, 2003
According to N G Swannell, associate director for Halcrow Group Ltd, the key to effective tunnel management is through proper planning and detailed risk assessment. In this article, Swannell sets out a general framework, drawn from international asset management practice, that can be applied to tunnel structures

Harding prize award
01 May, 2003

Yemen tunnel
01 May, 2003

North Downs Tunnel technical overview
01 March, 2003
Value engineering on the North Downs Tunnel, a 3.2km long high-speed rail tunnel on Section 1 of the UK's Channel Tunnel Rail Link, allowed estimated savings of US$14M and contributed towards completion five months ahead of schedule. Here, Colin Warren (Halcrow), lead engineering geologist for Rail Link Engineering, describes the technical innovation, value engineering and integrated observational approach adopted throughout construction

Refining design on the Black Hill tunnels
01 November, 2002
A constructive partnering environment on Contract 603, Black Hill Tunnels, part of the Tseung Kwan O Entension Project in Hong Kong, enabled optimisation of several aspects of the design. The design-build contract involved complex setting-out and closely spaced excavations. N G Swannell, associate director of Halcrow Group, R Harris, principal engineer for Halcrow Pacific and C Burgess, design engineer for Halcrow China, explain

Winning in China
01 November, 2002
While foreign construction companies have widely been able to work in China since 1994, the country's recent membership to the World Trade Organisation coupled with a new national tendering law, is making the process far easier. Keith Wallis examines the current state of the Chinese tunnelling industry and explores recent contract awards and future opportunities for international tunnelling companies