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Track laying in China

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An amazing video highlighting modern track laying on a high speed train elevated track in rural China.

 

 

 

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Curious.  I wonder why the columns need to be so high.  I couldn't see any sign of a navigable waterway...

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9 hours ago, jukebox said:

Curious.  I wonder why the columns need to be so high.  I couldn't see any sign of a navigable waterway...

I assume the track was running through a wide valley and the height had to match the approaches at either end.

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Not too dissimilar to the Pontcysyllte Aqueduct or Millau Viaduct in function (but slightly longer!). I'd guess that it actually uses less materials, and may cost less, than bringing the train down to valley floor level whilst maintaining a shallow gradient for what I'm guessing is a high speed line.

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Hmmm

 

It's a coal railway - Menghua Railway - a double line route that is the longest heavy haul freight railway in the world at 1,817 kilometers connecting China with Western Inner Mongolia.

 

That viaduct is the FenHe bridge....

 

Location:  35°32'53.6"N 110°41'11.3"E

 

more info here:

 

 

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