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Stratford Station Upgrade
Client: Network Rail
Contractors Designers: Jacobs
Form of Contract: ICE 6th with amendments
Dates work carried out: 2007 - 2010
Constrained by a busy fully operating station, at one of Londonís busiest interchanges away from main line terminals, the worksites are situated along island platforms with London Underground and Network rail trains on either side.
Challenges include working in a busy public environment dominated by the existing railways and the need to create minimal disruption to the train services and passengersalike. All of the works are being undertaken in close cooperation with Network Rail engineers, and also with the local authority to ensure our commitment to meeting environmental constraints is honoured at all times.
The three year project involves the construction of new lifts and stair cases in four main locations, improvement and widening of new platforms, new station buildings and the installation of a new power supply and communication system. New structural steel platform canopies and associated lighting, PA, M&E and CCTV systems are also included Substantial temporary works for a ground support system are 6.5m deep and 1m clear of the nearest running track. Comprising piled king posts and pre-cast lintels, these form the outline of the new stairs / lift shafts and were constructed under difficult conditions. Buried reinforced concrete blocks not clearly identified on the drawings made this a time consuming operation.
No materials or plant can be moved through the station during train operating hours, requiring the hand movement of all materials and plant during a 3hr night shift. This also means that all arisings have to be removed by hand during the same hours. Typically the 30 man strong team has been able to move 25 - 30 Tonnes of materials and equipment during each shift, to enable construction behind secure site hoardings during the day.