czbbflier From Canada, joined Jul 2006, 987 posts, RR: 2
Reply 1, posted
Mon May 9 2011 05:48:04 UTC (3 years 10 months 1 day 7 hours ago) and read 1962 times:
That is very cool. Thanks for posting!
I wonder how fast it takes to do the whole process... there seems to be quite a few passes at the section- how do they get one train out of the way so the next can do its job?
flanker From United States of America, joined Aug 2005, 1731 posts, RR: 2
Reply 2, posted
Mon May 9 2011 12:16:24 UTC (3 years 10 months 1 day ago) and read 1874 times:
Yeah I wonder too. Maybe some of the train gurus on this site can explain how the process works.
Calling an illegal alien an 'undocumented immigrant' is like calling a drug dealer an unlicensed pharmacist
elmothehobo From United States of America, joined Aug 2006, 1549 posts, RR: 1
Reply 3, posted
Mon May 9 2011 18:36:48 UTC (3 years 10 months 18 hours ago) and read 1806 times:
There is another similar machine that does the complete opposite, it goes along and pulls up the rails and ties and leaves just a bare roadbed.
cpd From Australia, joined Jun 2008, 4884 posts, RR: 37
Reply 4, posted
Mon May 9 2011 19:21:51 UTC (3 years 10 months 17 hours ago) and read 1784 times:
I've seen them here as well - but didn't see actually what they did before.
Northwest727 From United States of America, joined Jul 2005, 491 posts, RR: 0
Reply 5, posted
Fri May 13 2011 12:00:15 UTC (3 years 9 months 3 weeks 6 days 1 hour ago) and read 1613 times:
Quoting elmothehobo ( Reply 3): There is another similar machine that does the complete opposite, it goes along and pulls up the rails and ties and leaves just a bare roadbed.
Sucks seeing rail lines being ripped out. This sounds rather classy; a rail line that ran past where I used to live was ripped out using your everyday excavators.
MD11Engineer From Germany, joined Oct 2003, 14365 posts, RR: 62
Reply 6, posted
Fri May 13 2011 12:37:20 UTC (3 years 9 months 3 weeks 6 days ago) and read 1602 times:
Usually these machines work in tandem. From time to time the ballast bed under the tracks has to be renewed. Also wooden sleepers tend to rott after a few decades, so they´ll have to be replaced. So you´ll have one machine lifting the old tack and removing it, then a bunch of excavators removing and rebuilding the ballast bed and finally a machine which lays new track sections, welds them together and stuffs the ballast between the sleepers.
Je Suis Charlie et je suis Ahmet aussi
PROSA From United States of America, joined Oct 2001, 5644 posts, RR: 4
Reply 7, posted
Fri May 13 2011 16:23:33 UTC (3 years 9 months 3 weeks 5 days 20 hours ago) and read 1566 times:
Notice that the ties (sleepers) in the video clip are concrete. Traditional wooden ties, while not quite obsolete, are nonetheless often being replaced by concrete or composite ties.
"Let me think about it" = the coward's way of saying "no"