101–110 of 170 posts
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So how much time approximately will be saved vs the existing routes?
It cuts the Zürich-Milan journey time for passenger trains by about an hour (from 173 to 111 minutes) accelerating train trips from Germany/Switzerland to Italy significantly.
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There is a bit on wikipedia[1] (more in the german version). The project wasn't with out Problems but because of such strict planning they could be solved. For example one of the TBM's got stuck for months, another issues such as sub contractors delivering fraudulent materials also had to be dealt with. [2] Although the Swiss part went well there are issues with the connection in Germany and Italy. Some projects in I…
I don't read German so maybe this is covered in your article but what does strict planning have to do with getting a TBM unstuck or fraudulent materials? Wouldn't these issues point towards a lack of planning/quality control?
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I am not sure how much residual heat is left after 4 billion years, but at the near surface all[1] the heat is due to radioactive decay. 1. Ok most :)
https://en.wikipedia.org/wiki/Earth%27s_internal_heat_budget "The flow of heat from Earth's interior to the surface is estimated at 47 terawatts (TW) and comes from two main sources in roughly equal amounts : the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust, and the primordial heat left over from the formation of the Earth."
Most of the heat flow from the thicker continental crust is attributed to internal radiogenic sources, in contrast the thinner oceanic crust has only 2% internal radiogenic heat.
In the Swiss alps most of the heat is coming from local radioactive decay.
"... longest and deepest rail tunnel ..." and "... delivered on time and within budget ..." Only in Switzerland, I guess. :) I wish there were better write ups of how the planning for this came together and what differs from other somewhat similar huge projects.
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It seems a bit harsh to me to call this "incredibly disrespectful". I doubt that "incredible disrespect" was intended, nor is it inherent to the statement. What I think you mean is that the grandparent comment strikes you personally as not recognising the efforts of other engineers around the world, and you wish it did. I think that would be a less incendiary and aggressive way to get your point across, and, in most…
Thank you for the comment but your recommendation is unnecessary - from reading your post it is clear that the major components of my complaint were understood without issue. Disrespect occurs with or without intent. The original poster's comment can only be construed in one way: the Swiss do things this way, it is better, and therefore everybody else does it wrong. The claim (50% spent on planning) is clearly and de…
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It seems a bit harsh to me to call this "incredibly disrespectful". I doubt that "incredible disrespect" was intended, nor is it inherent to the statement. What I think you mean is that the grandparent comment strikes you personally as not recognising the efforts of other engineers around the world, and you wish it did. I think that would be a less incendiary and aggressive way to get your point across, and, in most…
Thank you for the comment but your recommendation is unnecessary - from reading your post it is clear that the major components of my complaint were understood without issue. Disrespect occurs with or without intent. The original poster's comment can only be construed in one way: the Swiss do things this way, it is better, and therefore everybody else does it wrong. The claim (50% spent on planning) is clearly and de…
Most people aren't judged by effort. They're judged by results.
Another way of putting it: the proof of the engineering is in the working.
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I know, I live there ;)
To all you western europeans complaining: come down to Brazil, and I'll take you on a tour of our "Top Ten Most Abandoned-Halfway Billion Dollar Government Works" ;-) Oh, and just to give an example, the construction of one of our nuclear power plants began in 1984 but was halted in 1986, only to begin where it left off in 2010, to be finished in 2015. Wait, now it is in 2016. Nope, just checked, it should be in 2018…
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Where did you read that? The project site says they have created 26 miles of new tunnels, also wider ones than ever before (6.2m). As well as 10 new stations. And all of this is slap bang in the middle of Europe's biggest city, which is pretty damn poorly laid out and not exactly conducive to huge scale construction projects.
Wikipedia says: "The project's main feature is 21 km (13 mi) of new twin tunnels." So that 26 miles counts the tracks both ways. Well, it's not a short way, 42 km is a marathon.
You can check a small animation[1] of the rail traffic from this upcoming weekend when the first passenger trains will pass through the tunnel http://maps.vasile.ch/transit-sbb/?hms=08:40:00&day=2016-06-... [1] http://imgur.com/cN3HKPp?v=2
So how much time approximately will be saved vs the existing routes?
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And, more often than not, these requirement changes are used as excuses for extending the deadline so that project ends up being done "on time". I've worked in management on multi-year waterfall projects and this is how this game is played.
It would be fun to see an "agile" tunnel project. "This rock is too solid to drill through with our machines!" – "Ok, for now let's just drill around it and make it an underground rollercoaster instead of a railway, we can get back to the original design later!"