Temporary Tunnelling Projects

Balfour Beatty has been appointed by EDF Energy as preferred bidder for the UK’s Hinkley Point C nuclear power station tunnelling and marine works package. The four year package will include the construction of three marine tunnels totalling over 9.5km in length and 7m in diameter to form part of the vital cooling system required for the UK’s landmark nuclear power station. On completion, Hinkley Point C will be the first of a new generation of nuclear power stations and the first to be built in the UK for more than 20 years.

PBE Rutherford were subsequently chosen by Balfour Beatty to provide the temporary electrical system for the surface and underground works associated with these tunnels. A range of containerised switchrooms, substations and compact tunnel substations drawn from our extensive fleet of equipment are currently being supplied to the project on a 32-month hire contract.

Sydney Metro is a future automated rapid transit system in Sydney, New South Wales, Australia. Sydney will be the first Australian city to build a metro system. The network will be controlled by Sydney Metro which was established in July 2018 and is an operating agency owned by the NSW Government. The first line is planned to consist of 31 stations and 66 km of track. The first stage, called Sydney Metro Northwest, is under construction and testing and is expected to open in the first half of 2019.
Temporary power is required for each of the 5 TBM's as part of the Sydney Metro Tunnels projects. The TBMs will be used to excavate 15.5 kilometres of new twin rail tunnels. To meet the requirement, PBE Rutherford was to provide a total of 200 11kV 800 amp couplers and 30 kilometres of HT cable. This involves coupler fitting, inspection / testing, reeling onto cable drums for transport to the Sydney sites, documentation and test certificates.

Acciona Infrastructure Canada inc. and Samsung C&T Canada Ltd have partnered to form Peace River Hydro Partners (PRHP). PRHP hold the main civil works for the Site C Clean Energy Project, the third dam and hydroelectric generating station on the Peace River in northeast British Columbia. Site C will provide 1,100 megawatts of capacity and produce about 5,100 gigawatt hours of electricity each year.
Site C has an Earthfill dam approximately 1,050 m in length and 60 m high above the riverbed, an 800 m dam buttress for seismic protection, and two diversion tunnels with 10.8 m internal diameter and between 700 to 800 m in length.

PBE implemented a Gen4 voice communication system in both tunnels, consisting of a head-end and radiating cable network. The head-end houses eight digital repeaters providing four voice channels on the surface that are linked to four voice channels for underground operations. Up to four-hour battery backup was provided for underground equipment.

It's expected for Site C to provide reliable and clean electricity in British Columbia for more than 100 years.

London's network of sewers was built in 1858 foreseeing a population of 4 million, but with a population of 9 million today, although in perfect condition, lacks the capacity to meet the demands of modern-day London. As a result, millions of tons of untreated sewage overflows the system and spills into the Thames each year, affecting the ecosystem of the river and London itself.
As a result, Tideway is upgrading London's sewer system to cope with its growing population. By intercepting, storing and transferring the sewage before it enters the river, the 25 km tunnel will help prevent the tidal River Thames from being polluted.

The project has been divided into three sections: East; Central; and West. All tunnels will be created using Tunnel Boring Machines (TBM). PBE Rutherford was awarded the contract for the Central's temporary electrical works with Ferrovial / Laing O’Rourke JV. They have limited equipment available that would be suitable for these works, which is the largest section on the project with 12.7km of tunnels. Our previous work with them on the Northern Line Extension project has created a positive working relationship.

The scope of work includes containerized substations & switchrooms, isolation transformers, compact tunnel substations, testing & commissioning, and ongoing maintenance.

Elizabeth River Tunnels Project (ERTP) includes construction of a new tunnel in place of the Midtown tunnel and restoration of existing Downtown tunnels in Virginia, USA. The tunnels connect Norfolk and Portsmouth cities in the Hampton roads region.

PBE was awarded the contract to provide a Leaky Feeder Communication System

The Red Line North Underground extends in a northerly direction from the station Mushaireb for approximate length of 13km through seven new underground stations.

PBE was responsible for the design, supply testing and commissioning of the contemporary leaky feeder and distributed antenna communication system

The Alaskan Way Viaduct replacement tunnel is a bored road tunnel that is under construction in the city of Seattle in the U.S. state of Washington. The project has been stalled since December 2013. No firm date for if/when the project will continue has been set.[3] The 2-mile (3.2 km) tunnel would carry State Route 99 under Downtown Seattle from the SoDo neighborhood to South Lake Union in the north

PBE was awarded the contract to provide a traditional Leaky Feeder communication system and an emergency evacuation system during the construction phase