{"id":80771,"date":"2020-08-11T10:44:12","date_gmt":"2020-08-11T09:44:12","guid":{"rendered":"https:\/\/www.pbctoday.co.uk\/news\/?p=80771"},"modified":"2020-08-11T10:44:12","modified_gmt":"2020-08-11T09:44:12","slug":"chiltern-tunnelling-machines","status":"publish","type":"post","link":"https:\/\/www.pbctoday.co.uk\/news\/planning-construction-news\/chiltern-tunnelling-machines\/80771\/","title":{"rendered":"HS2 Chiltern tunnelling machines set to leave the factory"},"content":{"rendered":"

HS2<\/a> has revealed the first images and publicly-chosen names of the first two completed giant Tunnel Boring Machines (TBMs)\u00a0that\u00a0will excavate the twin-bore Chiltern tunnel<\/h2>\n

The names \u2013 Florence and Cecilia \u2013 were suggested by students at Meadow\u00a0High\u00a0School in Hillingdon and The Chalfonts Community College, Buckinghamshire, inspired by female\u00a0scientific and medical pioneers.<\/p>\n

Around 4,500 people from across the UK took part in the poll to select the final names, with Florence taking 40% of the vote and Cecilia a close second with 32%.<\/p>\n

The schools that suggested the names are close to HS2\u2019s South Portal site, from where the first tunnel boring machines<\/a> will launch early next year.<\/p>\n

The first two TBMs will be operated by HS2\u2019s main works contractor, Align JV \u2013\u00a0a\u00a0joint venture formed of three international infrastructure companies: Bouygues Travaux Publics, Sir Robert McAlpine, and\u00a0VolkerFitzpatrick.<\/p>\n

The enormous 2,000-tonne machines \u2013 which have been built by world-leading German tunnelling specialists Herrenknecht \u2013 will be shipped in pieces to the UK and arrive at Align’s main site to the west of London just inside the M25 later this year.<\/p>\n

\u2018Florence\u2019 is set to be launched early next year to begin digging the 10-mile-long Chiltern tunnel. \u2018Cecilia\u2019 will launch around a month afterwards and dig the other half of the \u2018twin bore\u2019 tunnel.<\/p>\n

Both 170m long machines are specifically designed for the mix of chalk and flint they will encounter under the Chilterns<\/a>. Operating a \u2018continuous boring\u2019 technique, they are expected to take around 3 years to excavate the 9.1m metre diameter tunnels which will be lined with concrete as they go.<\/p>\n

The TBMs will mix the spoil with water to form a slurry which will be pumped back to the main site where it will be treated before being used for landscaping on-site, removing the need for additional HGVs on local roads.<\/p>\n

A change in the UK travel industry<\/h3>\n

HS2 minister, Andrew Stephenson, said:\u00a0\u201cThese impressive tunnel boring machines will be instrumental in delivering the first stage of this transformative rail line<\/a> between London and the West Midlands, and it is fitting that they bear the names Florence and Cecilia, two iconic women from this area whose achievements remain famous today.<\/p>\n

\u201cHS2 will provide better, more reliable connections that truly level up our country, boosting economic growth and sharing opportunities.<\/p>\n

\u201cI want to thank all the students who played a role in this milestone moment, and who will benefit from this high-speed railway for years to come.\u201d<\/p>\n

HS2 Ltd chief executive, Mark Thurston, said:\u00a0\u201cThe launch of our first tunnelling machines will be a defining moment in the history of HS2<\/a> \u2013 and our work to deliver a low carbon, high speed railway that will change the way we travel in the UK.<\/p>\n

\u201cI\u2019d like to thank all the schools that took part in the first stage of the competition, the pupils who suggested the three shortlisted names, and all those who voted online.<\/p>\n

“It\u2019s great to see local communities engaging with the project, and schoolchildren being inspired by the scientific and technological ambition of HS2.\u201d<\/p>\n

\n<\/div>","protected":false},"excerpt":{"rendered":"

HS2 has revealed the first images and publicly-chosen names of the first two completed giant Tunnel Boring Machines (TBMs)\u00a0that\u00a0will excavate the twin-bore Chiltern tunnel.<\/p>\n","protected":false},"author":20,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[304],"tags":[676,473,579,947,928,280],"stakeholder_rel_tag":[],"contributor_rel_tag":[],"class_list":{"0":"post-80771","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-planning-construction-news","7":"tag-construction","8":"tag-hs2","9":"tag-infrastructure","10":"tag-london","11":"tag-rail-network","12":"tag-transport"},"acf":[],"yoast_head":"\nHS2 Chiltern tunnelling machines set to leave the 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