SYNOPSIS
An early involvement of the contractor and his consultant in the development of the Canary Wharf Crossrail station has allowed significant optimisation of the station box design from the original Crossrail Reference Design scheme. Innovative thinking, local knowledge and willingness to break with the norm have allowed the station to be delivered at 58% of the cost of the Reference Design developed and costed by Crossrail.

Construction of this station has progressed ahead of schedule and budget since the formal commencement of works in May 2009. The platform level was handed over to CRL in March 2012, five months ahead of schedule. The tunnel boring machines arrived in May 2013 and, Crossrail Place, the retail and mixed used space above the station which includes a roof garden is now opened to public in May 2015.
This talk will describe the design and construction challenges faced by the geotechnical designer of this station box where new construction technique was used for the first time in the vicinity of the Canary Wharf area and possibly in the UK. Reuse of excavated material for various structure also allows the design team minimizing the cost and environmental impact of removing large volume of material off site.


PROFILE OF SPEAKER

Dr Yeow finished his PhD in University of Aberdeen in late 1990 and joined Arup Geotechnics in London.  Over 23 years with Arup he had worked on many building and infrastructure projects in the UK and the Far East. In October 2013 he joined Flint & Neill (F&N) in London, a major player in the world of bridge design.  F&N is a COWI Group company and the two organisations are renowned for their design and build ways of working with major contractors worldwide.

As a technical director in F&N and COWI, Dr Yeow is required to provide geotechnical support to their global projects, to maintain/develop COWI's leadership in technical matters and to provide mentoring and guidance for their geotechnical staff.  His recent projects since joining this new company include a cable stay Mersey Gateway bridge in the UK, 20km long up to 40m deep Fehmarn Belt Immersed Tube tunnel project, Race Bank offshore wind farm project in the North Sea, 4km long urban section of Copenhagen to Ringsted railway, stabilisation of a major hillside at Constantine in Algeria and most recently the Garden Bridge project in London.