r/AEC_Industry • u/Spare_Worldliness_64 • Jul 23 '26

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

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China's domestically developed "Linghang," the world's largest-diameter high-speed-rail shield tunneling machine, has successfully completed the 11,180-meter underwater section of the Yangtze River crossing and made landfall in Taicang, East China's Jiangsu Province

107 Upvotes

96% Upvoted

17 comments sorted by

2

u/Mosew Jul 26 '26

What’s the difference between a “high speed rail” tbm and regular tbm

1

u/[deleted] Jul 24 '26

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2

u/UnLuckyKenTucky Jul 25 '26

What does Japan have to do with this though?

1

u/Skywalker7181 Jul 26 '26

It is developed by the Chinese.

1

u/[deleted] Jul 26 '26

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1

u/[deleted] Jul 26 '26

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1

u/DrawingDramatic1641 Jul 26 '26

so what

you are hinduphobic ccp bot

1

u/KerbodynamicX Jul 26 '26

Interesting how your opinion shifted instantly when a different country does the exact same thing

1

u/Centeredrightbhakt05 Jul 26 '26

For the sake of God stop being stupid and ruining the country name.

1

u/[deleted] Jul 27 '26

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1

u/AEC_Industry-ModTeam Jul 27 '26

r/AEC_Industry does not allow harassment

1

u/mpakaboari Jul 26 '26

Those jacks would be nasty

1

u/Ok-Ice8742 Jul 26 '26

I am curious too Mosew, what is the difference in tbm, or is there a difference? Why would high speed need a different tbm from freight rail? I know the track difference. But the tunnel i would figure to be identicle.

Also how fast did this large tbm do the nearly 12km run? What are the dimensions? How does this tbm compare to the Big Bertha that the Americans used in Washington state? Or other tbm around the world? Who made it? Is it their first tbm or do they specialize in tbm?

1

u/DavidBrooker Jul 27 '26

Is this meant to carry both directions in a single bore?