Owner
Crossrail Ltd. - TfL
Client
AECOM - formerly URS/Scott-Wilson
Cost
£16 billion GBP
Timeframe
January 2011
— December 2013
Services performed
Specialist sub-consultant for the analysis, design check, and design improvement recommendations of SCL structures.
Description
Crossrail is a 118km railway line along an east-west route across London. Its central section runs via 21km twin-bore tunnels connecting eight underground stations and represents one of the world's largest infrastructure projects. Dr. Sauer & Partners was assigned to provide Category III independent design checking services on the Sprayed Concrete Lining works for the complete Whitechapel and Fisher Street SCL structures. Additional 3D non-linear FEA and assessments were carried out for the wraparound and junction structures of the Liverpool St Station and the Bond St Station.
Geology
The SCL tunnels are located in London Clay and Lambeth Group with overlying strata of terrace gravels and made ground.
Location
London, UK
Highlights
- UK's highest level of checking for high risk elements
- Innovative design approaches e.g. composite linings bonded with a polymeric sprayed waterproofing membrane
FEM results of binocular structure at Fisher Street Crossover
Fisher Street Crossover under construction