{"id":124637,"date":"2023-04-13T11:46:11","date_gmt":"2023-04-13T10:46:11","guid":{"rendered":"https:\/\/www.pbctoday.co.uk\/news\/?p=124637"},"modified":"2023-04-13T11:46:11","modified_gmt":"2023-04-13T10:46:11","slug":"third-tunnel-boring-machine-launched-by-hs2-london","status":"publish","type":"post","link":"https:\/\/www.pbctoday.co.uk\/news\/plant-equipment-supplies-news\/third-tunnel-boring-machine-launched-by-hs2-london\/124637\/","title":{"rendered":"A third tunnel boring machine has been launched by HS2 in London"},"content":{"rendered":"

HS2 has launched its third giant tunnel boring machine in London, made from repurposed components of Crossrail\u2019s \u2018Ellie\u2019 machine<\/h2>\n

The tunnel will be used to move materials and remove spoil from the northern portal at HS2\u2019s Euston twin bored tunnel rather than for the use of HS2 trains.<\/p>\n

The work will be carried out by engineers from HS2\u2019s contractor Skanska Costain STRABAG joint venture<\/a> (SCS JV), using an 847-tonne machine from the Atlas Road site in North Acton. The engineers will build an 853-metre tunnel to the Old Oak Common Station site.<\/p>\n

Work on the tunnel is expected to take around six months and will be constructed using 4,264 concrete segments to form 533 tunnel rings. Each segment weighs over three tonnes and has been produced in Pacadar in Kent. A total of 8,010 tunnel segment rings will be transported in the tunnel. The rings will be transported by rail and the logistic tunnel only as part of HS2\u2019s commitment to sustainable construction.<\/p>\n

HS2 also opened a new on-site rebar steel component facility<\/a> to reduce materials shortages at the Copthall tunnel in Hillingdon recently as part of their HS2 Net Zero Carbon target. The rebar facility will include 92,000 rebar steel couplers and will be constructed by a team of 14 engineers. According to HS2, the facility will cut waste and emissions from lorry movements and create new jobs.<\/p>\n

\u201cWe are always looking at ways to improve construction efficiency and are pleased to support our construction partners in developing solutions like this and getting them off the ground,\u201d said HS2\u2019s project client, Malcolm Codling.<\/p>\n

Materials from HS2 will be recycled elsewhere<\/h3>\n

A conveyor system will also run through the logistics tunnel to excavate clay from London to HS2 London Logistics Hub at Willesden Euro Terminal. Spoil will then be transported taken for reuse and sites in Kent, Rugby, and Cambridgeshire.<\/p>\n

The conveyor network has three spurs, serving the Old Oak Common station site, the Atlas Road site, and Victoria Road Crossover box site. HS2 Ltd.\u2019s station contractor, BBVS JV, uses the conveyor system to remove spoil and excavate it to the station box, the subsurface structure in which the HS2 platforms will be constructed.<\/p>\n

\u201cThe Atlas Road Logistics Tunnel is key to how we will be constructing the Euston Tunnel between Old Oak Common and HS2\u2019s Euston station. The logistics tunnel allows us to take 70,000 lorry journeys off the local roads that would otherwise have been required and will reduce the impact of HS2\u2019s construction on the local community,\u201d said Malcolm Codling, HS2\u2019s project client for the London Tunnels.<\/p>\n