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Global Rail Construction Ltd is a Principal Contractor and a leading UK provider of design and build services to clients in the rail and transportation sector.

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31 Aug 2018

GRCL awarded Civil Engineering and E&P works on Paddington to Reading Resignalling

Global Rail Construction Limited (GRCL), is delighted to announce the award of a design and construct package of Civil Engineering and E&P works on behalf of their client Alstom. The works form part of the Paddington to Reading Signalling works which are linked to HS2 – the planned new high speed rail link connecting London to the Midlands, North East and North West.

As part of these major infrastructure works, HS2 will be constructing an interchange station in the existing Old Oak Common (OOC) depot area. The proposed site for the interchange station is currently occupied by both Great Western Railway (GWR) and Heathrow Express (HEX) Train Care Depots. Both these depots will need to be decommissioned to create the space required to construct and service the HS2 interchange station. The decommissioning works are planned to be delivered in four stages, to facilitate a phased withdrawal of GWR and HEX operations from the OOC site. The relocation of Location suite R2/172 and recovery of R2/157, are required in order to facilitate the clearance for HS2 Stage 2 and in support of the decommissioning works and these works have been contracted to Alstom under a variation to the overall Crossrail Surface Signalling Crossrail West Christmas 2017 Signalling Interlocking Works. The Wycombe Line (Greenford), is also subject to clearance of Signalling and Power, in support of the HS2 decommissioning works and due to the severance of the running line from London, remedial Signalling alterations are required. The West Ealing works consists of remedial Signalling alterations and to provide automation to the signalling and control system for both inbound and outbound train movements, in addition to the provision of a Depot Protection System (DPS) to protect GWR staff from movements within the confines of and at the interface to, the sidings.

Global Rail Construction’s scope for civil engineering includes the full survey including topographical and ground investigation, and then the subsequent design and build of five location suites and one FSP suite, including all necessary trough route modifications. The civils scope also includes new signal bases and also signal head modification works including bracketry.

The scope for E&P is also provides for a full D&C solution from Global’s team and includes surveys and then the design and installation of the amended 650v signalling power supply, including connection to the existing return screen conductor. Additional complexities around interim power arrangements will have to be considered by the team including the replication of the necessary signalling loads. GRCL will define the signalling functional power circuit requirements and provide the proposed functional loads as part of their design work.

The D&C scope also covers FSP recoveries and staged and final Feeder configuration and with all construction and installation work needing to be completed before the final FSP connections in advance of the signalling possession works to mitigate the signalling and operational railway disruption, it is no surprise that these works have now commenced.

GRCL’s works are due to be completed in February 2019.

Jim Cuell, Commercial Director commented on this award stating:

‘This project provides the ideal platform for GRCL to deliver the full breadth of its multi-disciplinary design and build offering across civils, E&P and signalling. We are delighted to have started this project for our long-term partner Alstom and look forward to the successful conclusion of these works early next year in conjunction with them.”

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Global Rail Construction
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