"Wait, if the cost of the magnetic suspension track itself is only 400 million yuan, why is the cost of the end of the kilometer increased to 800 million yuan per kilometer?" Some parents discovered the Hua Dian and asked curiously.

"The remaining 400 million are the cost of construction!" Chen Lao sighed. "According to our original plan, in addition to the necessary bridges and culverts, the magnetic suspension train should actually be built on the ground all the way, just like ordinary people, like ordinary

The railway is average. However, in actual construction, we found that the entire magnetic suspension track must be elevated throughout the process, at least five meters away from the ground to build. "

"Because this magnetic suspension technology in Germany must be absolutely stable on the ground, and at the same time, there will be strong current on the surrounding railway. If anyone who does not wear professional equipment is close and tried to cross the track, it will be greatly threatened by life.

. ""

"Comprehensive reasons for all aspects, the magnetic suspension train must be overwhelmed by more than five meters, and if a nationwide magnetic suspension train is built, more than 70%of areas need to be overhead."

"This means that while we build a magnetic suspension train, we must also build a supporting viaduct throughout the process. The construction of a viaduct means another thing, which is the cost of land."

"If you build a new elevated, the elevated itself will occupy a large number of plots. It is okay to say in those places in the countryside, but in the city, the cost of land acquisition is going to go to the sea. Among the 800 million costs, there are three.

100 million are used for land acquisition. "

In summary, the track magnetic suspension is destined to be eliminated. It may be that there are such rail magnetic suspension lines in China, and in the future, it is more as a tourist attraction.

Task!

When Chen Lao talked, he directly pulled out the bottom of the track magnetic suspension.

Parents who are present do not speak. In fact, everyone can see this situation. In 2001, the enthusiasm for the rail magnetism was unprecedentedly high in China.

overtake.

And when the rail magnetism was built in 2003, there were 17 provincial capital cities in China, which were solemnly written in their own urban development outline.

What.

However, more than three years have passed, but there are no sounds about the rail magnetic suspension in China, and I have never heard any second orbit magnetic suspension.

I'm afraid I can't get through.

Of course, the vacuum high -speed train that suddenly emerged from later, in their opinion, is also a gust of wind, which is more unbelievable than the rail -high -speed railway.

Unexpectedly, for three years, it was also tossed 25 kilometers.

"Then Chen Lao, according to your meaning, the cost of infrastructure of this vacuum -orbital magnetic suspension is much lower!" Someone asked, "But when this vacuum pipeline is built, does it need to be erected on the ground?"

"Also encounter water bridges and open caves in the mountains. This cost is not much lower than the rail high -speed railway!"

"No, I am responsible for telling you that the infrastructure cost of vacuum high -speed pipelines will not only be cheaper than the track magnetic suspension train, but also cheaper than high -speed trains, even cheaper than our traditional green car rail rails!" Chen

The boss said loudly that this caused this another surprise, which is actually cheaper than the traditional railway. How can this be possible?

However, Chen Lao went on to say, "Vacuum high -speed pipeline sounds very tall, but it is essentially pipeline. It can be buried directly into the bottom of the ground according to the use of the pipeline!"

"After the redesigned by our redirection, our pipelines are already very durable. We don't even need to stand directly on the ground. We only need to dig a pit deep on the ground, bury the tube, and then fill it back to the soil back to the soil.

Then you can just lay it directly! "

"In addition to some special terrain, we have even planned to build all the vacuum high -speed trains on the ground, so that more than 90%of the vacuum high -speed pipelines are buried underground."

"Whether it is a city or a village, it can be operated like this without digging too deep. It is enough to have a depth of about 10 meters."

"This deep in the urban pipeline system is just in the middle layer. The upper point is sewage pipelines, power grid pipelines and other pipelines, while the city's subway network is down. Our vacuum high -speed pipeline can be connected.

Because there are reinforcements above and below, this position is very balanced and stable! "

"So, although we still have to encounter water bridges and open caves in the mountains.

The cost is only less than 1/10! "

"And in other grounds, the cost is below 1/20, just digging and filling back. I even joked and told our staff that you can go directly to Lan Xiang to learn a month of excavators.

When you come back, you can directly bury the pipeline for us. You can buy a pipeline of one kilometer one kilometer in a week. All of you are a road -building hero! "Chen Lao said here, obviously he was very proud.

Of course, some people are still unconvinced, so then questioning, "If you bury the track into the ground, is it to be more eroded. First of all, the groundwater is eroded. In addition, there are various strata.

The stress. If you encounter an earthquake, wouldn't it be more dangerous? "

"This question is good, but we have considered this kind of question long ago!" Chen Lao said "First of all, the various erosion that was buried underground and then was indeed much more than the surface table, so we designed such a solid one

With a vacuum tube with different structures, it is enough to resist any erosion from the natural environment that we humans can imagine. "

"By the way, although various natural erosion in the ground is much more than the surface table. However, there is a benefit of underground, that is, the erosion of oxygen will be reduced by dozens of times, and oxygen is the root of all erosion conditions."

"These erosion is white, all of which are oxidized and restored, and the oxygen is gone, then restore a fart!"

"According to our calculations, a vacuum high -speed pipeline produced in accordance with our standards can withstand the ground erosion for more than 100 years. There is no need to worry about the pipelines due to these erosion within a hundred years.

. ""

"Of course, such as the threat of earthquake, the earthquake below level 6 is basically not threatened to our pipelines, and the threats above level 6 are indeed very large. We are mainly afraid of the movement and thrust of the plate, that is, it can cause the floor cracks to cracks.

Such earthquake. "

"But not to mention that this level of earthquake can be encountered once many years. Even if you really meet, then you will meet. We will repair it later!"

"First of all, the material of our pipeline itself is completely able to withstand the impact of the earthquake power below the 12th level. It is only a pipeline with a length of hundreds of kilometers. At the same time, it will be invaded by such power.

Avoid it! "

"But the problem is that if it is on the ground, what will happen if the pipe is really broken?"

"First of all, the pipeline is buried underground. Even if there is a broken condition, it is impossible to enter a large amount of air in a short period of time. The interior of the pipeline can still maintain a long vacuum state."

"It doesn't need to be very long. As long as 10 seconds, the vacuum high -speed train can achieve braking under the action of reverse magnets. It only takes 10 seconds from the start of the brake to the completely stop."

"After 10 seconds, the train stopped inside the pipeline. Unless he was so good, he stopped in a pipeline of hundreds of kilometers of length. Those broken places, otherwise he could still be protected by the vacuum high -speed pipeline.

All the forces of the earthquake below the 12th level are eaten, so that the vacuum high -speed trains in the pipeline can not bear any harm. "

"So the worst situation is just a few days when the passengers in the train were trapped on the ground were waiting for the rescue forces we sent out to dig the ground and pulled the train out of the ground!"

"When it comes to this pipeline break, when the pipeline breaks appear on the ground, it is indeed a big trouble. But if this problem appears on the ground, it will be easy to solve!"

"If there is no earthquake, but because of other reasons, the trains in front of the crack can be fully resisted. The trains after the crack can turn around and return to the nearest site. The whole process can still run very smoothly."

"At the same time, the maintenance process is also very simple, because each pipe is a fixed length of 200 meters, and there must be a connection place every 200 meters. Therefore, only a dozen excavators are needed to emergency.

Dig out, then isolate the air at the connection point, then remove the broken pipeline directly, then replace the new pipeline, then re -connected it back, remove the air, and directly repair it. "

"The whole process is very simple, and it can be completed without more than three days. It is expected that it is difficult to happen within three years. Therefore, once the vacuum high -speed pipeline is buried underground, the maintenance is very convenient and labor -saving!

"

"By the way, there is another benefit buried underground, that is, there is almost no need to consider the problem of turning. All the pipes can go straight, and don't have to personally around a large circle for bypassing a key position."
Chapter completed!