World-class tunnelling expertise exists in Cambridge (e.g. Centre for Smart Infrastructure and Construction at Department of Engineering, Mott MacDonald, Atkins, Skanska, etc.). One of the world authorities on tunnelling is Professor Lord Robert Mair (CBE FREng FRS), who is Sir Kirby Laing Professor of Civil Engineering and Head of Civil and Environmental Engineering at the University of Cambridge. He has been involved in a wide range of rail tunnelling projects worldwide, including being closely involved with the design and construction of the Jubilee Line Extension for London Underground, the Channel Tunnel Rail Link, and Crossrail projects.
According to Prof Lord Mair, the thick gault clay deposits that underlie Cambridge are eminently suitable for tunnelling. At this stage, our information is based on news reports, and Cambridge Connect needs to dig deeper into the technical aspects of tunnelling in the Cambridge context, which is high on our priority list!