{"id":273984,"date":"2025-08-27T19:25:24","date_gmt":"2025-08-27T09:25:24","guid":{"rendered":"https:\/\/railuk.com\/?p=181940"},"modified":"2025-08-27T19:25:24","modified_gmt":"2025-08-27T09:25:24","slug":"hs2-lifts-fourth-giant-tunnelling-machine-after-3-4-mile-journey-under-the-capital","status":"publish","type":"post","link":"https:\/\/www.vibewire.com.au\/?p=273984","title":{"rendered":"HS2 lifts fourth giant tunnelling machine after 3.4-mile journey under the capital"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Engineers working on HS2\u2019s London tunnels began lifting the last of four giant tunnelling machines to the surface over the bank holiday weekend.<\/p>\n

The first part of \u2018Anne\u2019 \u2013 including the 9.11-metre-diameter cutterhead \u2013 saw the light of day for the first time in 16 months as it was lifted out of a shaft at Green Park Way in Greenford, west London, on Sunday 24th August.<\/p>\n

Weighing a total of 1,700 tonnes and stretching for around 150m, the huge Tunnel Boring Machine (TBM) must be lifted out of the shaft in sections using a giant gantry crane.<\/p>\n

It is one of four TBMs which have now completed the excavation of the 8.4-mile-long Northolt tunnels between West Ruislip and the new station at Old Oak Common.<\/p>\n

Launching from West Ruislip and Old Oak Common and meeting in the middle, the four machines excavated more than 4 million tonnes of London Clay and installed almost 100,000 concrete segments to form the tunnel walls.<\/p>\n

Anne is named after Lady Anne Byron, an educational reformer and philanthropist who established the Ealing Grove School in 1834 \u2013 England\u2019s first co-operative school which provided education for working class children in west London.<\/p>\n

A selection of images of the removal are available for download here<\/a>.<\/p>\n

Image credit: HS2<\/p>\n","protected":false},"excerpt":{"rendered":"

\"\"<\/a>Engineers working on HS2\u2019s London tunnels began lifting the last of four giant tunnelling machines to the surface over the bank holiday weekend. The first part of \u2018Anne\u2019 \u2013 including the 9.11-metre-diameter cutterhead \u2013 saw the light of day for the first time in 16 months as it was lifted out of a shaft at [\u2026]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[53,1089,343,47,48,85],"tags":[],"class_list":["post-273984","post","type-post","status-publish","format-standard","hentry","category-high-speed-rail","category-hs2","category-infrastructure","category-rail-news","category-technology","category-uk"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t