Historic tunnelling breakthrough for HS2 Construction Index News 5:35 2 years ago 4 195 Скачать Далее
First tunnelling breakthrough complete for HS2’s longest tunnel #shorts #news HS2 Ltd 0:33 5 months ago 44 029 Скачать Далее
80 metres below ground with the engineers building HS2's longest tunnel HS2 Ltd 4:43 1 year ago 91 767 Скачать Далее
INCREDIBLE SWITZERLAND BIGGEST TUNNEL BORING MACHINE DIAMETER-HOW DOES TUNNEL BORING MACHINE WORK? Science & Technology UI 11:20 3 years ago 20 001 349 Скачать Далее
Behind the breakthrough: HS2 milestone marks full completion of first twin bore tunnel HS2 Ltd 6:33 1 year ago 44 625 Скачать Далее
Moment machine digging HS2’s longest tunnel breaks through after 10-mile journey The Independent 1:19 5 months ago 1 861 Скачать Далее
Shield process of hydropower station tunnel- Good tools and machinery make work easy Crafts people 0:12 1 year ago 42 966 338 Скачать Далее
1st HS2 tunnel breakthrough by boring machine named Dorothy completed the task Solomon Riley 0:23 2 years ago 58 Скачать Далее
Completion of HS2 logistics tunnel paves the way for high-speed line to Euston HS2 Ltd 0:55 6 months ago 46 263 Скачать Далее
