The use of a FARO Focus3D X 330 Laser Scanner helps to ensure the delivery of precise precast concrete structural elements to the Ordsall Chord project, part of Network Rail’s £1bn+ railway upgrade plan for the North of England.
A joint venture between Skanska BAM Nuttall is currently involved in delivering the Ordsall Chord, part of the Great North Rail Project to improve railway services. The project will help to increase connectivity across towns and cities and enable the Government’s so-called Northern Powerhouse initiative to boost economic growth in the North of England.
Since October 2015, work has been taking place on the Ordsall Chord. This new section of track will create a link between Manchester city centre’s main train stations; Victoria, Oxford Road and Manchester Piccadilly, for the first time. However, for this vital piece of track to be fitted, a huge amount of preparatory work needs to take place. This includes realigning existing track-, building new bridges, removing disused arches and restoring Grade I listed structures related to what is a section of the world’s first passenger railway.
The delivery of incorrectly sized precast concrete elements had the potential to cause long delays to the Ordsall Chord project and to disrupt road and rail travel. To help eliminate this possibility a fool-proof system of laser scanning the critical structural elements has been adopted.
Dan Binney, Skanska BAM, Senior Engineering Surveyor explained. “Work on the Ordsall Chord involves reconfiguring the existing railway between Eccles and Deansgate, Eccles and Manchester Victoria and Deansgate and Salford Crescent stations. Other work includes the installation of two new bridges, the renovation of an existing bridge, the widening of a viaduct and establishing a new track lay out.
“The track changes will allow the 300 metre chord, a brand new section of railway, to connect with the new layout. As part of the project, a range of large, precast concrete, structural elements are manufactured off-site. Although we are able to make on-site adjustments to accommodate very minor size discrepancies, the delivery of precast structures that fall outside our specified dimensional tolerances would render them useless and cause massive time delays.