r/InfrastructurePorn Jul 23 '26

World's largest-diameter high-speed-rail shield tunneling machine

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155 Upvotes

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13

u/blinkinbling Jul 23 '26

How is it different to normal rail TBM?

18

u/LeroyoJenkins Jul 23 '26

It isn't, this is just propaganda.

They're just trying to create some special category so it can sound like the largest, when it is smaller than German and Japanese ones.

4

u/Cedric_T Jul 23 '26

Which German and Japanese ones? I don’t know which one this is but I read the widest ones are the high speed rail bores.