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The Qinghai-Tibet Railway: The world's highest track that freezes its own ground with ammonia pipes

Engineering 2 min

The Qinghai-Tibet Railway: The world's highest track that freezes its own ground with ammonia pipes

How thousands of passive thermosiphons keep tracks at an altitude of 5,000 meters from collapsing into permafrost mud.

civil engineering
thermodynamics
qinghai-tibet railway

0 0

2 hours ago

The thermosiphons of the Qinghai-Tibet Railway: The silent tubes that freeze the ground to sustain the highest train in the world

Engineering 2 min

The thermosiphons of the Qinghai-Tibet Railway: The silent tubes that freeze the ground to sustain the highest train in the world

The ingenious passive geotechnical solution that prevents more than 500 kilometers of tracks from sinking into mud during the summer thaw.

civil engineering
thermodynamics
permafrost

2 0

2 weeks ago