R
rdean
Guest
- Thread starter
- #61
Yeah. Which of those are they building in California?Why do you think high speed rails are welded and ground smooth?
Why are new trains made from composites?
People aren't "freight". Not in the sense of "steel beams".
And now, about Maglev L0 Trains using superconductive magnets. They are already being built.
Magnificent Machines: Maglev L0 Trains | Totaljobs
Last week, the Central Japan Railway Company unveiled the new ML L0 train last week. Built by Mitsubishi, it pulls between 5 and 12 single deck carriages, carrying 68 passengers in each. The sleek machine can hit 313 mph in tests
But wait! Scientists at the Southwest Jiaotong University in China are developing low pressure underground tubes lines that will double Maglevs speed to almost 600 mph. And the Chinese already have form, running a high-speed Maglev route, linking Shanghai to the local airport 19 miles away - in just seven minutes. Suddenly Heathrow Express doesnt seem very fast at all.
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You never bother to "find things out". You want so bad to have a "gotcha moment", you make yourself look stupid.
Don't expect an answer, he is about to realize how stupid what he posted was when he looks up expansion joints.
The reason I don't answer you is because you are a fucking idiot. There is only so much time in the day and you are a waste. Know nothing. And you sit in front of the Internet. You could have simply done a search on "welded rails" instead of looking like a stupid fuck.
What is continuous welded rail?
The answer is that the rail is not allowed to expand or contract. It is laid at a slightly lower than mean temperature, usually at night, and carefully expanded using special heaters until marks on the rail line up accurately with marks at the trackside. They are then securely tightened down on to heavy pre-stressed concrete sleepers which in their turn are held by tons per yard (or tonnes per metre) of ballast. Although there can be considerable internal stresses present within the rail it doesn't affect the geometry of the track.