Adrian St.John is a Fellow of the Institution of Civil Engineers and a Supervising Civil Engineer. He has spent most of his 24 year career working on major infrastructure and tunnelling projects in the UK and overseas, including the Brighton Stormwater tunnel and High Speed 1 at St Pancras. He spent 6 years as Chief Engineer for BFK Joint Venture who were the main contractor on Crossrail contracts C300, C410 and C435, and is the Design Director for Carillion Eiffage Kier (CEK) Joint Venture bidding for the forthcoming HS2 main civil works.
Crossrail Farringdon station stands amongst the most geotechnically challenging tunnelling projects in the UK with approximately 1km long sprayed c...
The design delivery for the sprayed concrete linings (SCL) for Crossrail contract C300/C410 Western Running Tunnels and Station Caverns has involve...
The proposed Crossrail station will comprise two ticket halls, two escalator/concourse tunnels, two platform tunnels, numerous cross passages and v...
Sprayed concrete lining (SCL) tunnelling alongside the secant pile walls forming the Eastern Ticket Hall (ETH) box at Bond Street station left a na...
Two additional temporary sprayed concrete lining (SCL) structures were designed in addition to the base design, and constructed for Crossrail at Fa...
A key bid-winning innovation introduced by BAM Ferrovial Kier (BFK) joint venture on the combined Crossrail Contract C300/C410 was the change of se...
During construction of the sprayed concrete lined tunnels at Bond Street and Tottenham Court Road Crossrail stations, a number of challenging condi...
Falling ground or immature concrete within sprayed concrete lined tunnels is a major safety risk to personnel, which has complex inter-relationship...
Methods of monitoring the structural behaviour of tunnels during construction traditionally rely on in-tunnel displacement monitoring, with designe...
Creating a complex sprayed concrete lined (SCL) crossover between the Crossrail running tunnels at Fisher Street presented the project team with ma...