Search Results: 'CTRL'

Monitoring changes in instrumentation
01 December, 2002
Chris Rasmussen, technical director of ITM-Soil, looks at recent trends in instrumentation and monitoring and describes how these were utilised when the 9.3m diameter Heathrow Airside Tunnel TBM crossed 3.5m above the 'live' 5.8m diameter Heathrow Express Tunnel earlier this year

Competence in the tunnelling industry
01 November, 2002
Prior to their forthcoming lecture, which will be presented to British Tunnelling Society members on 21 November, Douglas Allenby of Edmund Nuttall, Bob Ibell of London Bridge Associates and Peter Jewell of Halliburton KBR, explain the need for an independent assessment of competence within the British tunnelling industry, and discuss current training initiatives

Contributions from the floor
05 May, 2002

BTS debate - Certifiably argumentative
05 May, 2002
On the 21st March 2002, The British Tunnelling Society held it's annual debate. The motion proposed to the house, "Self-Certification is Dangerous for Tunnelling", produced a strongly argued discussion, which generated a very close result

CTRL buy-outs
01 April, 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

Primary ways to save (part 2)
14 January, 2002
In the second part of his paper, submitted to the BTS Harding Prize Competition 2001, Jon Hurt of Arup describes how value engineering continued to make savings during primary and secondary lining stages on the CTRL North Downs Tunnel, UK