MAIN PILING work starts this month for extended platforms and a new concourse at the £42M upgrade of London's Wembley Park tube station, close to the site of the new national football stadium.
Foundation contractor Bachy Soletanche will replace a Soilmec CM70 rig used to install a piled tower crane base with a smaller CM48 for the concourse foundations - about 100, up to 600mm diameter and 22m deep CFA piles.
Tight programming on the London Underground project, to create a 70% increase in passenger throughput, means most of the piling must be done while trains continue to run. Bachy Soletanche has used a space-saving tripod rig to bore 40 piles only 2m from waiting passengers.
Main contractor Taylor Woodrow and project manager Tube Lines must complete the upgrade by spring 2006, just before the new stadium opens.