Search Results: 'Buchan '

Nordic Neighbors
03 November, 2016
The ITA’s Nordic Forum provides an opportunity for canada and other nations to exchange information. Tunnels & Tunnelling looks at projects underway in the region

Buchan awarded Shieldhall ring supply contract
21 August, 2015
GREAT BRITAIN – Buchan Underground was recently awarded a contract to supply 3,277 precast rings for the Shieldhall Tunnel project in Glasgow. Each 4.56m-diameter ring is made up of six segments, each weighing 2300kg that equates to over 19,500 segments to be supplied to the project.

Cable guy
10 October, 2013
A new cable tunnel has gone seemingly without a hitch in the Willesden/harlesden neighbourhoods of North London. Alex Conacher tours the site with Murphy’s tunnelling project manager Keith Pollard.

Power up the future
17 May, 2012
UK gas and electric power network operator National Grid is engaged in a major renewal programme to ensure power supplies for the future. One aspect is to install high-voltage cables underground to renew the grid in major urban areas, starting with London. Maurice Jones visited one of the current tunnel drives in a 32km-long network that started recently in north London

Prepared for the long haul
18 October, 2011
Since precast concrete segmental tunnel lining was invented, there has never been so much development of the ‘product’ as in recent years, even though, superficially, it may look the same. Maurice Jones looks at some of these developments aimed at increasing tunnelling progress whilst avoiding mishaps

Delivering the DLR Extension
10 November, 2007
At September’s British Tunnelling Society meeting, Harvey Pownall, general manager of concession company WARE, Andy Allder, lead designer for Halcrow, and Dalgit Dhanda project manager for Morgan Est (formerly Amec) presented the contractual, design and construction challenges on London’s Docklands Light Railway (DLR) Woolwich Arsenal Extension

Morgan moves on Amec Tunnelling
03 July, 2007

Tunnelling 50 years ago
15 February, 2007
At the December 2006 BTS meeting, speakers Oliver Bevan and Douglas Parkes discussed the view of a contractor, with his ‘low cunning and guile’, and that of the design-oriented man with the mechanical brain - 50 years ago

High pressure drive crosses the Thames
01 July, 2004
Constructing the 2.4km long, 3m i.d. Dartford Cable Tunnel under the River Thames has proved a testing experience for UK contractor Amec. T&TI editor, Tris Thomas, recently visited the site and discovered how the team dealt with chalk under 3.5 bar water pressure without compressed air, an innovative shaft lining and a severely damaged cutterhead - all with little effect on the schedule

Flexible shield proves its worth
01 March, 2004
The 17.4km long Hofoldinger Tunnel is the final link in Munich's southern water supply chain. The tunnel is being bored through extremely mixed ground using an innovative combination of tunnelling methodologies. Dipl -Ing. Christian Stahn and Dipl- Geol. Ulrich Ferstl of contractor Bilfinger Berger explain

Performance of fibres for concrete
01 September, 2003
John Greenhalgh, technical sales representative for Bekaert Building Products UK, describes various types of fibre reinforcement available for underground construction and how the various characteristics of these fibres affect concrete performance

Quality casting in California
05 May, 2002

Tunnel Support Products
20 August, 2001

No holiday at Great Yarmouth
01 August, 2000
The opening up of the UK power market has led to a number of private initiatives, among which is Great Yarmouth Power's project on the sea front at the east England seaside resort of Great Yarmouth. This report is on the project's tunnelling and shaft sinking for cable ducts and cooling water.

Keeping tunnels dry
30 March, 2000
Achieving a watertight environment in a tunnel is essential for the smooth, safe running of the project during construction and operation. Assistant Editor Tristan Thomas looks at some of the waterproofing options available.

Walney Tunnel completion
14 October, 1999

Project Orwell: flood relief in IPSWICH
16 September, 1999
To comply with the EU Urban Wastewater Treatment Directive, which comes into force on January 1 2001, AMEC Tunnelling and Anglian Water have joined forces under a partnering agreement and embarked upon a major flood relief scheme in Ipswich in the south east of England. Assistant Editor Tristan Thomas reports from the site, where work is currently ahead of schedule.