Doomsday Bunker Upgrade

Because the pipeline construction needs to avoid the buildings on the ground, and considering the influence of factors such as thermal expansion and cold contraction, the pipeline cannot be pulled into a straight line, and an elbow must be set in the middle.

Therefore, in the process of construction, how to install the elbow, and how to deal with the construction problem of changing the direction of the pipeline after the installation of the elbow, has become a problem that Chen Xin must consider.

The installation of the elbow itself is easy to say. The big deal is to dig a shaft from the ground and put it down. Although it requires a certain amount of work, it is still easy to complete. As for how to weld, Chen Xinda can use the mechanical arm of the power armor to do it.

However, how to put the pipeline down after the direction of the pipeline is changed is a problem that makes Chen Xin scratch his head.

In the past, if you wanted to lay a pipeline, if it was not directly placed on the ground, the most common method used by the construction party was to excavate the entire ground for construction, and then cover it with soil backfill after completion.

Of course, Chen Xin can also use this method, but he can dig up more than ten meters of snow, just to put down the pipeline, unless there are hundreds of workers equipped with exoskeletons on Chen Xin, and There are also a large number of construction machinery, otherwise it is not suitable for such a huge construction method.

And if Chen Xin wants to use this method to construct, he doesn't need to be a small shield machine by himself.

Facing this question, Chen Xin did not scratch his head by himself, but found Cao Daren and asked him if there was a suitable method.

After all, Chen Xin was only a writer who wrote online novels before. Although he did not completely understand this kind of construction project, he certainly did not have as much contact with Cao Daren.

"If this is the problem, I suggest that the writer use the pipe jacking method for construction." Sure enough, when Chen Xin asked, Cao Daren had already given a practical plan, and also said to Chen Xin: "I thought the writer You have already decided to use this method to construct! Use a shield machine to excavate, and then use a jack to jack in the pipe section by section, isn't this the plan you envisioned in advance?"

"The plan I envisioned is indeed to use a shield machine to dig a tunnel, and then put the pipe in, but it is still a bit different from the pipe jacking method you mentioned." Chen Xin understood the pipe jacking method after listening to Cao Daren's introduction. What is going on, but it does have some differences from the way he originally envisioned the construction.

The pipe jacking method is actually a pipeline construction method developed with the development of science and technology in order to solve the problems of complex underground pipelines and inconvenient excavation in the city.

The main construction method is to excavate the operation well to reach the operation depth, and then jack the prefabricated pipeline section by section with a jack and other tools into the predetermined pipeline at the predetermined pipeline position to realize the pipeline installation.

Of course, this technology is mainly used in the installation of large pipelines, and is divided into mechanical excavation jacking, extrusion jacking, hydraulic mechanical excavation and manual excavation jacking according to the different excavation methods. The way.

Chen Xin's way of excavating with shield machine can also be regarded as mechanical excavation jacking.

"In this case, we need to take insulation measures for the pipeline first, and then put it in the operation well for jacking operation." Chen Xin agreed with the plan given by Cao Daren after thinking about it, and quickly thought of the construction issues to pay attention to.

When Cao Da heard Chen Xin say this, he nodded and said affirmatively, "That's for sure. It's impossible to keep the pipes ready before insulation. That would be too troublesome."

Cao Daren agreed to keep the pipeline well insulated before carrying out the jacking operation mainly because the surface where they installed the pipeline was covered with snow, not soil or rock, because if it was a harder texture such as soil or rock, the outer layer of the pipeline would be wrapped. The insulation material is easily worn during the jacking process.

"Can the construction in this area be entrusted to you? After all, I am not a professional engineering technician, and I have other things to do." Chen Xin looked at Cao Daren and asked him.

What he said was the truth. Although he had been exposed to engineering construction when he was still at work, Chen Xin at that time was not the person in charge of the construction on site, and had no experience in this area.

As for the other things he said, it was his cooperation with the country. The prototype of the project that needed him to be upgraded and improved had been transported to Linshi by military train with the special forces, and is now being stored in the military camp.

The prototypes of related projects that were previously accumulated in the urban area are also preparing to be shipped recently, so Chen Xin really needs to deal with these things during this period, so as not to delay the progress of the country's projects.

Although the appearance of Chen Xin is just a surprise to the country, the original project plan was designed without his help, but this does not mean that Chen Xin can put the backlog of work that should be completed there and ignore it.

Therefore, Chen Xin plans to take advantage of the construction of the second heating hub and the laying of pipelines to clear the backlog of work.

And for Chen Xin, he has been busy with various things during the time he came to Linshi for disaster relief, first with the ambulance station, then with the railway station and heating hub. After a little rest that day, Qin Lan and Mo Qingyan gave her a big "surprise".

This also makes Chen Xin want to take advantage of this time when other things are on the right track, and change his mind by dealing with these backlogs of work.

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Chen Xin took the initiative to deal with the backlog of work, which of course was something that the researchers around him could not wish for.

This researcher has been staying here since he came to Linshi before. In addition to being in charge of contacting the urban area and higher authorities, this researcher has also helped Chen Xin a lot, at least for the heating hub. The researcher contributed a lot in the construction of the .

In the past, he needed to use the communication channel of Linshi City Hall to communicate with the superior department. Now the special forces have come, not only built a military camp, but also brought communication facilities and built a communication network, which allows this researcher to use the help of The communication equipment of this special force makes it easier to get in touch with the superior department.

This is a good thing for both the researcher himself and Chen Xin, which makes their communication with the higher-level departments much smoother. After all, it was somewhat inconvenient to borrow the communication channel of the Linshi Municipal Government.

On the special forces side, there is no such trouble, because the reason why they will be equipped with complete communication equipment when they come is that there is a factor that guarantees the communication between Chen Xin and the higher-level scientific research department.