"The 190m-long boring machine is named Madeleine, after Madeleine Nobbs, the former president of the Women's Engineering Society. It is expected to take about 18 months for the machine to complete the 4.5-mile journey from Old Oak Common in west London. Madeleine was built in Germany and transported to the UK in parts. A 750-tonne crane lifted the components into an underground box at one end of the station, where it was reassembled."
"At the launch of the machines, Jones said: "There's nothing boring about tunnel boring. "We're boosting the links between our big cities across the country to create more opportunities for people to trade, meet and socialise with each other, turning the corner on years of decline." Lord Hendy said the machines were "an engineering marvel" and "brings HS2's journey to Euston another step closer to reality"."
Work has started on the tunnel that will take the HS2 rail line from west London to Euston, with the first of two tunnel boring machines switched on at Old Oak Common. The 190m-long machine, Madeleine, is expected to take about 18 months to complete the 4.5-mile drive; its companion, Karen, will be launched in the coming months. The machines will excavate and construct the tunnel as they progress, slotting concrete segments into place and reaching depths of up to 50 metres. HS2 has faced delays and mounting costs of at least £80bn, with a revised cost and schedule to be published this year.
Read at www.bbc.com
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