Originally Posted by Ace:
Originally Posted by Hot Water:
Originally Posted by Ace:
Wow, that's a mind-blowing idea. Technically possible. The distance is 13,000 km, not 1,300 km.
China already has the world's longest high-speed rail lines, but the skeptics say it will fall apart:
https://ogrforum.com/t...igh-speed-rail-route
Have YOU actually witnessed some of the concrete work in Chine during the last 10 years? I must admit that I have never been over there, due to my asthma, but I have a LOT of friends and business associates, some of whom deal with the Chinese Railway officials, and the "off the record reports" are quite disturbing.
I wouldn't place a lot of stock in second-hand "off-the-record" rumors.
My good friend "Joe" has done extensive work in China as a consulting engineer on major concrete highway and bridge construction projects. True story. A bit more about "Joe":
1) He has advanced degrees in Civil Engineering, Chemistry and Physics.
2) He had a distinguished career with CalTrans.
3) He did Field Engineering of numerous major highway and bridge projects.
4) He did extensive concrete testing related to highway and bridge projects.
5) He is a world-class expert on concrete engineering and related chemistry.
6) He was a consulting engineer on major projects in China and other countries.
I have heard "Joe" talk for hours and hours on these subjects, first-hand info from a world-class expert. To sum up some pertinent observations about China by "Joe":
1) The Chinese are not stupid.
2) The Chinese are not lazy.
3) The Chinese are making temendous advances in engineering, technology and nation-building. They are not making large-scale stupid mistakes on major infrastructure projects the way some folks would have you believe.
It cannot be objectively denied that China has developed a high-speed rail network considerably advanced beyond that in our own country. Some folks just don't want to recognize that.
Without getting into the nitty gritty, it isn't that China is stupid, it isn't that China lacks technology or engineering talent, the real issue is that the way things are done there, you have an old problem, that time pressures and frankly outright corruption combine to make for dangerous situations. And no, it isn't unique to China, it happens here, shoddy concrete work has caused collapses, and if you read the history of such kinds of things, it happened a lot when things were moving too fast and so forth.
I am not an engineer, but I have construction background, my uncle who ran the company was a PE in Civil Engineering and so forth so I have some knowledge of what it involves.
There are two main factors with concrete, and both come into play here. Different mixes of concrete have different sets of characteristics (the mix is the ratio and the type of cement and aggregate used), and often for example concrete firms will either deliberately (to charge for a higher priced mix while delivering lower cost stuff, the mob run companies in NYC were famous for that, as well as underdelivering on pours), and there is room for bribery here, where companies will deliver inferior concrete and pay off the inspectors and such working for the construction company. Concrete is supposed to be certified, but as happened in NYC in recent years (the head of a testing company went to jail, for certifying the concrete being used in places like the new Yankee Stadium, I believe water tunnel #3 and other big projects that they never tested) the testing companies can make good money to look the other way.
The other issue is cure time, to get to the right strength concrete has to cure for a certain period of time, and it has to cure neither too slowly or especially quickly (if it goes to quickly, it can crack and have other problems). When putting up a building with concrete floors, you cannot legally start putting up the next floor until the one you are working on had its concrete set for x days, but with time constraints there is a lot of pressure to cut corners.
This isn't unique to China, but right now they are doing so many things, so rapidly, and there are so many people with their hands out that like NYC in recent years, they are running into problems, many of which won't be seen until another 10-20 years pass. Corruption is a major problem, very little gets done without greasing palms and such, and with construction going at a break neck pace there also are relatively few inspectors to handle all of it, even if they are honest.
Like anything else, you have to look at it in context and understand what is going on and why. The engineering expertise is there, the technology is there and in many cases they have the will to do things like this that don't happen here. There are a lot of hurdles to a project like this,technical and money wise, but the biggest one that makes this unfeasible is political, the Russians aren't going to allow the train to use their territory, for one, and in the US everyone from labor groups not wanting to make it easier to outsource jobs to China, to the John Birch society types seeing a commie invasion imminent (which is kind of silly,assuming the Chinese would use the railroad to invade the US is kind of WWII'ish, it assumes a)the Chinese would want to invade and b)that somehow they could secure the train against attack, when in some ways a rampaging moose could put it out of business, let alone bombs, dynamite or other things that could destroy it in a matter of minutes.