Search Results: 'Southern Water'

Negotiating the North Eastern Line
01 December, 2002
An underground journey in Singapore opened the new season of BTS meetings in London in September 2002, with a presentation from Peter Chiappa, area manager Asia Pacific, and Wolfgang Freitzsche, managing director, of Wayss & Freytag Ingenieurbau AG, detailing the demanding requirements, troublesome ground conditions and ultimate resounding success of Contract 704 on the State's new North Eastern Line (NEL) metro

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

Austrian victory
15 October, 2002

The cutting edge - ICUTROC
01 October, 2002
Until recently, use of roadheaders in harder rock has raised excavation costs sharply. Karlheinz Gehring, head of the Geotechnical Department at Voest Alpine Bergtechnik GmbH, describes the ICUTROC R&D initiative, that has been undertaken to develop roadheader hard rock cutting technology

Under pressure at Tyin
01 October, 2002
Øystein Lilleland, deputy site manager for Norsk Hydro ASA, Jon R. Myhre, senior engineer for Selmer Skanska AS and Morten Lund, engineering geologist for Norconsult discuss the largest ever water power plant upgrade in Norway currently underway at the Tyin Hydropower Plant Project

Sweden's Bothnia Line
01 October, 2002
The Bothnia Line is Sweden's largest infrastructure project for 50 years, where tunnelling accounts for 20% of the US$1.2bn, 190km, route. Three out of the four tunnels let, have been completed, while the remaining 11 tunnel contracts are still in bidding stage. Editor, Tris Thomas, recently visited the Stranneberg Tunnel, which demands the use of jet grouting and ground freezing techniques

Blasting above the Brandleite
01 July, 2002
When completed in spring 2003 the Rennsteig tunnel, at 7.9km, will be the longest highway tunnel in Germany. The twin tube tunnel is the most expensive element of the new A71/A73 highway, connecting Erfurt with Schweinfurt and included crossing the 112 year old Brandleite railway tunnel with only 6m of cover. G. Denzer of DEGES and R. Maidl, Ingenieurbüro Prof. Dr.-Ing. B. Maidl - Dipl.-Ing. R. Maidl, describe the project

Long distance grouting in Arizona
01 July, 2002
Raymond Henn and William Leech of Hayley & Aldrich, Patrick Stephens of Pacific International Grouting and Mark Rybak of Affholder explain the long distance pumping of backfill material and contact grout carried out for the South Mountain Tunnel Project in the US

Call for Atlanta's court order CSO's
01 July, 2002

Powering under London
13 June, 2002
For over a year, three Lovat EPBMs have been steadily boring a 20km long cable tunnel under north London. With the end of tunnelling in-sight Tris Thomas visited the site and talked to Jim Street, project manager for the client, National Grid Company, and contractor, J. Murphy & Sons divisional manager Peter Jaques and contracts manager George Jackson.

New outlets for Lake Mathews
05 May, 2002

Arrowhead in award process
05 May, 2002

Jet setting in Rio
01 April, 2002
Construction of Rio de Janeiro's Metro Line 1 extension has involved tunnelling under multi-storey buildings with minimal cover. Luis Sozio of the contract's detailed design team, Promon Engenharia, describes how a combination of horizontal and vertical jet grouting ensured minimal settlement along the tricky alignment.

Logging on for TBM productivity
01 April, 2002
A TBM production logging system proved an effective tool for site-based decision-making during construction of the Portsmouth Transfer Tunnel for the Portsmouth and Havant Wastewater Treatment Works & Sludge Recycling Scheme in the UK. Simon Stroud of Halliburton KBR described the system for the British Tunnelling Society's Harding Prize competition, on which this article is based.

Re-aligning Monte Zucco's railway
01 March, 2002
As part of the realignment of Italy's Treviso-Calalzo di Cadore railway, a new Monte Zucco tunnel is being constructed in a contract worth US$16.3M. Andrea Simonetti, Commercial Manager for SELI describes the challenges posed by the difficult geological conditions along the tunnel alignment

Barcelona's new backbone runs deep
01 March, 2002
Due to start in May, construction of the long-awaited Barcelona Metro Line 9 will connect with and cross all the city's existing metro and rail lines. Consultant, Nicola Della Valle currently working with Paymacotas of Spain, describes the challenges involved and how these objectives will be achieved with minimum surface disturbance through an innovative integrated station and tunnel solution.

Mont Cenis - the first trans-Alpine tunnel
01 March, 2002
Promoted as a symbol of Italian nationality, the Mont Cenis Tunnel broke through the Alps in 1870 after 13 years of almost non-stop work. Myles O'Reilly looks at the innovations in rock tunnelling techniques sparked off by this massive project

Swiss seek approval
01 March, 2002

Deep-well dewatering on CTRL
01 March, 2002
The huge benefits of regional dewatering experienced during construction of London Underground's Jubilee Line Extension encouraged Rail Link Engineering to develop a comprehensive deep-well dewatering scheme for the London Tunnels section of the CTRL, writes David Whitaker, RLE Project Hydrogeologist

Downunder 2002 on track
01 February, 2002
As reported in the January edition of T&TI, the ITA World Tunnel Congress will be hosted by the Australian Underground Construction and Tunnelling Association (AUCTA), a founder member of the ITA, in Sydney from 2-8 March 2002. Garry Ash of Walter Construction, president of the AUCTA, explains why the timing of this event is particularly relevant