Signalling Installation Works Package 1 – Feltham

Global Rail Construction Limited (GRCL) successfully secured a significant Signalling installation sub-contract on behalf of its UK client Atkins. The contract is for Package 1 covering Phases 3 & 4 of the Feltham to Woking Resignalling Scheme and also includes Telecoms, Permanent Way, E&P and associated minor civils installation scopes of work

The contract includes the provision of key engineering resources – using in house personnel – in accordance with the Engineering Management for Projects standard NR/L2/RSE/02009. This includes the necessary disciplined Contractors Responsible Engineers, who are accountable for the day-to-day management and co-ordination of the technical and engineering activities, Construction Managers, Temporary Works Co-ordinators, and a Responsible Manager to fulfil the duties as defined in NR/L3/OHS/019. 

This success was awarded following Global Rail Construction Limited’s recent completion of the early advanced scope for Phase 2 covering Sunningdale MCB-CCTV – a full level crossing renewal – in which GRCL completed trackside signalling equipment installations and civils works in early November 2021 and the company was of course delighted to be working once again in partnership with its long-term customer Atkins.

The overall Feltham to Wokingham Resignalling Project covers the renewal of all signalling assets, covered by seven scheme plans, with delivery broken down into six separate Phases that align approximately to the Signalling Scheme Plan boundaries, Feltham ASC Signallers panels and Wokingham Signal Box.

 

Gibbets Lane – Plain Line Track Refurbishment Works

Network Rail (NR) Principal Contractor, Global Rail Construction Limited (GRCL), were contracted by NR Wessex Works Delivery Track for a £200k Plain Line Refurbishment of Gibbets Lane on the Frimley Line.

Global Rail Construction engaged with supply chain partner, KGJ Price, in order to support Network Rail to deliver this track package of works on the Wessex Route. 

During CP6, Global Rail Construction has also successfully supported Works Delivery in both Wessex and the South East with discrete work banks which have included re-sleepering, S&C refurb works and rerailing.

Minor Track Works (Renewal & Replacement) – Redhill

Due to maintenance DU capacity during week 50, Global Rail Construction Limited were engaged to deliver a £100k fixed diamond replacement project to remove track defects, crippled joints and track quality issues. The project demonstrated Global  Rail Construction’s ability to rapidly mobilise, undertake detailed planning in tight timescales and deliver a professional and quality project in collaboration with the Network Rail teams.

Global Rail Construction were responsible for the detailed planning of the works, providing safety documentation, hour by hour programme and inspection and test plans for the works. The company carried out the surveying and marking out of the works, and supported logistics for plant and materials deliveries. 

 

Minor Track Works (Renewal & Replacement) – Pratts Bridge

As part of the Sussex Region’s ongoing maintenance and renewals programme, Network Rail Works Delivery Unit (DU) engaged with Global Rail Construction Limited (GRCL) as their Principal Contractor to deliver a £100k contract for a critical sleeper renewal at Pratts Bridge near Eridge, East Sussex, 35m 1672yards.

The works required the removal of redundant 23nr PAN 8 sleepers and installation of new NRS1 base plated sleepers, ballast installation and tamping. The work was delivered as a package including planning, material management, logistics, survey and design validation, pre-works and engineering controls, delivery, and hand-back. 

 

Power Supply Upgrade – West Ham, London

Global Rail Construction Ltd (GRCL) was awarded a £3m design and construct contract associated with eight existing and one totally new substation at West Ham on the Metropolitan & District Line. Having worked closely with the client at tender stage in support of their bid to LUL, GRCL fully project managed all aspects of the design and construction of the civil and building elements of the work. The existing substations were: Campbell Road, East Ham, Heathway, Hornchurch, Plaistow and Upminster Bridge.

In general, works at these substations were to strengthen and alter the existing buildings and structures to allow the positioning of new transformers, switchgear, cables and ancillary equipment or provide new bases, structures and building extensions to support and house the same.

Sunningdale Level Crossing Renewal

Global Rail Construction Limited (GRCL) was awarded a multi-disciplinary contract on behalf of Atkins Global for the Civil and S&T installation works for a new level crossing at Sunningdale, which falls within Feltham Resignalling Phase 2.

The overall Feltham Resignalling Project covers the renewal of all signalling assets. Its area is covered by seven scheme plans, with delivery broken down into six separate Phases that align approximately to the Signalling Scheme Plan boundaries, Feltham ASC Signallers panels and Wokingham Signal Box.

Within the early advanced scope of Phase 2 was Sunningdale MCB-CCTV, which is subject to a full level crossing renewal – due for completion in November 2021. The scope encompasses life extension works with addition of barrier repositioning and narrowing of carriageway.

Clacton Resignalling Scheme

Global Rail Construction Limited (GRCL), has successfully completed a railway civil engineering design and build programme of works on behalf of partner Atkins Global, to support the upgrade the signalling systems in the Clacton-on-Sea area. 

The Clacton Resignalling Projects’ principle driver was the asset condition of the interlocking and associated track infrastructure at the throat of Clacton-on-Sea station.

Much of the signalling in the area dated back to 1958 and utilised a lever frame dating from 1891. There was a mixture of semaphore and colour-light signals, controlled by a mechanical/electro- mechanical lever frame. There was also a mechanical ground frame at Clacton Station. The existing signalling equipment has been previously subject of life extension works in both 1996 and 2004.

Many components were obsolete and only available on a repair and return basis. Most of the existing location cases had considerable corrosion. The signalling uses some single-cut circuits which are the subject of ORR concern. Searchlight signals were installed on this line, with known Wrong Side Failure (WSF) modes. P-Style relays in the lower portion of the box were recognised as susceptible to sliver migration. So, these works, will minimise maintenance and reduce whole life costs.

Greenwich SVC – Enclosure Design and Build

Global Rail Construction Limited (GRCL) has successfully completed the Design and Build of a Static VAR Compensator (SVC) Enclosure at Greenwich Generating Station. Under Power Upgrades Package 5C, Siemens, as Principal Contractor, appointed GRCL to deliver the project, to house the new SVC within a disused turbine hall. 

Access to the substation was via the Old Woolwich Road, which was challenging. An internal substation access road was used for all construction logistics and deliveries with minimum disruption caused to the local residents.

Whilst on site, GRCL were awarded a variation to provide further civils installation works associated with the extension to the existing 22kV Switch room located on the 1st Floor of the Sub-Station.  These works included the demolition of the existing wall, strengthening of the floor using steel support and concrete screed, blockwork walls, self-levelling screed, door installation and plinth foundations.

Thameslink Project

Global Rail Construction Limited (GRCL) has secured a multi-disciplinary S&T, Civils and E&P Points Heating remedial contract at London Bridge, on behalf of BAM Nuttall for the Thameslink Project. 

As part of the Thameslink Programme, the railway systems for London Bridge were completely remodelled to suit a new layout at the Station and provide substantial capacity improvements to enable amendments to the operational timetabling – this is referred to as the N421 Project.

However, the complexity of managing, staging and delivering the railway systems in order to meet the remodelling programme, necessitated a requirement for the railway systems infrastructure to be surveyed, in order to confirm both its suitability and the requirements to undertake further upgrades and rectifications as required.

Global Rail Construction Limited are among a team of specialist rail contractors working in a highly coordinated manner to deliver these important upgrades for Network Rail. The in-house team of multi-disciplinary experts from Global, have worked almost entirely within a live, operational environment, interfacing daily with equipment that is switched on, in a wholly compliant manner. 

The specialist discipline support services undertaken by Global Rail Construction Limited cover the entire end-to-end design and build scope of the Signalling, E&P and Ancillary Civil Engineering programme.

Barking Riverside Extension

Global Rail Construction Limited (GRCL) were awarded the E&P and Ancillary Civil Engineering works for the joint venture of Volker Fitzpatrick and Morgan Sindall (VFMS), as part of the construction of a new 4.5 km extension to the London Overground route on the Gospel Oak to Barking line for Transport for London, whilst also meeting the requirements for integration onto existing Network Rail infrastructure.

The full project scope provides a new strategic rail connection in East London and included the modification of the existing railway lines from Barking station over a stretch of 3km with a new 1.5km railway viaduct extension from Renwick Road overbridge to a new terminus. This involved constructing an embankment ramp up to the new concrete viaduct supporting a two-track railway extension into the heart of a new residential development at Barking Riverside.

The requirements also included new Overhead Line Electrification (OLE), Signalling, Signalling Power, Domestic Power and Telecoms, providing a new elevated Rail section and station close to the Thames.

In addition to their core Civils and E&P scope of works, GRCL also supplied all materials handling and logistics management for the works, RRV’s as required, site haulage, HV comps and assessors and all necessary SMTH testing staff to support its works and enhance its self-delivery capability.