News Light End Tunnel After Corecut Complete Work Glasgows Queen Street Upgrade

Scottish concrete contractor Corecut has completed key infrastructural work on the £60 million Glasgow Queen Street Station tunnel upgrade.

Having been awarded the track-slab replacement contract for the Edinburgh to Glasgow Improvement Programme (EGIP), Story Contracting chose the drilling specialist to lead the removal of 10,000 tonnes of existing concrete slabs as the station’s tunnel underwent significant improvements.

Known for work on large-scale construction schemes, Broxburn-based Corecut was considered the ideal partner to undertake the £1.25 million project, which included diamond drilling and concrete floor sawing in challenging, time-critical tunnel conditions.

Corecut was involved in the planning of the project nearly two years prior to undertaking the works from March 20 to June 26, including on and offsite trials.

The West Lothian company approached the project in distinct phases.

The first being pre-blockade works which included the Diamond Drilling of almost 8,500 112mm diameter x 500mm deep holes to allow the subsequent use of Hydraulic Bursting equipment to crack the slab, and 2,750 metres of Tracksaw Cutting to both the up line and down line to divorce the concrete slab track from the walls.

The second phase started on April 11 and saw main blockade works undertaken, including Longitudinal Sawcuts, Hydraulic Bursting – one of the safest and most efficient methods of removing reinforced or mass concrete, brickwork, or natural stone.

It also utilised remote-controlled Robolition demolition equipment to remove 10,000 tonnes of existing concrete, reducing it to manageable sections for removal by train.

Upon installation of the new concrete slab, Corecut drilled 3,500 holes to a depth of up to three metres, helping to anchor concrete to bedrock.

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Ahead of the overall project’s anticipated opening today (August 8), 40-year-old tracks were replaced, power lines installed, and platforms expanded by a network of dedicated contractors.

Managing director of Corecut, Finlay Crocker said: “The Queen Street tunnel represented a significant challenge for our team, which worked diligently on a 24/7 basis in difficult conditions across almost 100 days from late March to late June.

“With the difficult environment and tight deadline in mind, it is particularly pleasing to us that we were able to complete the work safely, within budget, and nearly a week ahead of schedule, which is testament to the quality and work ethic of those involved.

“We believe that, in doing so, we provided a major boost to the project’s immediate progress in the run-up to the 8 August opening.

“We hope that our contribution to Queen Street lays the foundations for wider success, both for those still engaged on the project, and for the station’s long-term future.

“Quality, precision, and continuous innovation are at the heart of every stage of our operation and represent fundamental parts of our culture as we look to deliver the best possible solutions.”

Location scheme project manager, Eddie Esdale of Story Contracting said: “It was a fantastic effort throughout by everyone involved at Corecut.

“A very innovative solution was proposed and delivered, and without it, the project may not have progressed as smoothly as it did. A professional approach from all operatives on site ensured the safe delivery of the works ahead of programme.”

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