Sprayed Concrete Lining Archives - Page 2 of 2

Installation of Optical Fibre based Sensors within Sprayed Concrete Lined Tunnels to measure Strain and Temperature

The purpose of this paper is to summarise the practical applications and benefits of optical fibre based sensors over traditional monitoring systems installed within a sprayed concrete lined tunnel. The installation was undertaken as part of the Crossrail project at Bond Street station East ticket [...]

Sprayed Concrete Lining Exclusion Zone Management

Best Practice Guides were produced in collaboration with Crossrail’s Tier 1 contractors and other industry specialist bodies e.g. the Fire Protection Association. Guides were produced in response to specific project activities and were aimed at raising health and Safety standards through the shari [...]

Crossrail Sprayed Concrete Lining Depressurisation at Stepney Green Caverns

Crossrail includes approximately 10km of Sprayed Concrete Lining (SCL) tunnels. One of the largest of these tunnels is being constructed at Stepney Green, East London to facilitate the construction of a sub-surface junction, allowing Crossrail trains from Maidenhead and the west to travel to Shenfie [...]

Geotechnical Risk Management for Sprayed Concrete Lining Tunnels in Farringdon Crossrail Station

The proposed Crossrail station will comprise two ticket halls, two escalator/concourse tunnels, two platform tunnels, numerous cross passages and ventilation tunnels. All station tunnels are constructed using sprayed concrete lining (SCL) techniques. The geological conditions were the principal c [...]

Back Analysis of Observed Measurements for Optimised SCL Tunnel Design

The Crossrail Farringdon Station is a deep level station with two platform tunnels, 300 metres long at a depth of approximately 30 metres below street level. The running tunnels are primarily TBM bored with the platform tunnels enlarged using sprayed concrete lining (SCL) tunnelling method. The stat [...]

Farringdon Station SCL Design – Reducing risk at the heart of Crossrail

The ground conditions expected at Farringdon Station are amongst the most challenging on Crossrail, exacerbated further by four TBMs (C300 and C305 drives – also known as “X” and “Y” drives respectively) all terminating in reception chambers required to facilitate their extraction. The Spr [...]

Crossrail Learning Legacy

The Crossrail Learning Legacy has concluded and this website is no longer updated