The Costain Vinci GP JV completed the construction phase of the Glasgow Shieldhall Tunnel on 12th October when the mix-shield, “Daisy” broke through in to the reception shaft at Queens Park. The breakthrough marked the completion of Scotland’s biggest wastewater tunnel, running for 5km beneath Glasgow. The project is technically complex, with minimal cover to the tunnel and what can only be described as challenging ground conditions. To quote the CVJV Project Director: “This is one of the most challenging projects that many of us have worked on, and the completion of the tunnel construction is testament to the skills, knowledge and determination of our team, who have safely delivered a high quality piece of infrastructure that will have a huge positive impact for the city now and in the future.”
LBA played an important role in preparing the tender submission and have supported the JV throughout the construction period with Tom Robinson taking a key role in the preparatory mine grouting and providing geotechnical expertise for the TBM drive, ably assisted by Jen Sampson for a time, and with Dave Terry leading the Engineering and Consultation for the highly challenging rail crossings.