QUOTE: Originally posted by dldance I don't remember all the details - but this has been one of the most difficult tunnels ever. Almost ever inch of it (pardon - centimeter) is in one seismic zone or another. The tunnel is very deep to stay in the rock formation under the ocean channel and they had a lot of problems with water in fractured rock as I recall. Also the approach needed to start a long distance inland to keep the gradient profile of the tunnel acceptable to high speed running. dd
QUOTE: Originally posted by futuremodal I didn't see anything in the article about this tunnel going undersea. If so, why didn't they use tubing lowered onto the seabed aka Chunnel?
QUOTE: Originally posted by eastside If the U.S. is an example of a country trying to get pork barrel under control, Japan is an example of a country with pork barrel run berserk. They build road tunnels to hamlets of a few hundred people to satisfy political constituencies. The level of government debt is much greater than in the U.S. QUOTE: Originally posted by futuremodal I didn't see anything in the article about this tunnel going undersea. If so, why didn't they use tubing lowered onto the seabed aka Chunnel? The article says it's the longest land-tunnel.
QUOTE: Originally posted by dldance QUOTE: Originally posted by eastside If the U.S. is an example of a country trying to get pork barrel under control, Japan is an example of a country with pork barrel run berserk. They build road tunnels to hamlets of a few hundred people to satisfy political constituencies. The level of government debt is much greater than in the U.S. QUOTE: Originally posted by futuremodal I didn't see anything in the article about this tunnel going undersea. If so, why didn't they use tubing lowered onto the seabed aka Chunnel? The article says it's the longest land-tunnel. Sorry I was thinking of the tunnel linking the north and south island. The seismic comments still apply. dd
I'm back!
Follow the progress:
http://ogrforum.ogaugerr.com/displayForumTopic/content/12129987972340381/page/1
Never too old to have a happy childhood!
QUOTE: Originally posted by CSSHEGEWISCH Geographically, Japan is about the size of California and the population density is incredible. Also, keep in mind that there is a lot more to Japanese railroading than the high-speed lines. Japanese domestic airlines also have a lot of traffic, the Boeing 747SR (Short Range) was built for All Nippon Airways. The 1st world vs 3rd world remarks are cheap shots, anyway.
Our community is FREE to join. To participate you must either login or register for an account.