People are in good spirits at happy events, and Liu Hai also feels that his small life is a little boring, except for going to work, there is nothing else, there is a woman who usually adjusts, and she has energy to work.

On Wednesday, the renderings of the 750CC superbike sports car drawn by Bang Hai were sent to the factory director.

"Director, I still have a rendering here, but it's relatively simple, let's let them see it over there." Bangs took out the gold wing again, this is a simple line structure, no coloring, no how, but there are approximate parameters.

The renderings also have approximate parameters, Sun Aiguo saw these two pictures and nodded: "I'll go to the ministry in person immediately." ”

All the design drawings on the bangs side should be in the ministry and re-copied.

"Then I'll start testing the TBM." Liu Hai heard that Sun Aiguo went to deliver it in person, and there was no surprise, so he spoke.

"Go tomorrow, will you go back here in the evening, or will you stay there?" Sun Aiguo asked again.

"It depends, if you want to work overtime, you won't come back, and if you don't work overtime, you'll come back."

"When you come back, let someone from the Ministry of Armed Forces pick you up, be careful."

"Thank you, Director."

Liu Hai returned to the maintenance department, half of the people in the maintenance department came back, and Liu Hai took the two people from the maintenance department to the Mentougou test site.

Simple houses have been built here, and electrical circuits have been built.

The site was also leveled, and Liu Hai explained to the two people brought by the maintenance department, where to stack the various parts of the shield machine, and Liu Hai explained in detail.

Then I went back to the maintenance department and started transferring parts there.

One by one, the large components are lifted up and fixed on the flatbed trailer through the crane in the workshop, and then transported away.

On the side of the test site, the 20-ton crane is already in place, and these large components can be placed on the ground and then covered with canvas.

Then he explained how the remaining two people in the maintenance department should transfer the parts here.

The test site is not only connected to electricity, but also to water, and even to telephone lines, and the surrounding area has been guarded by the armed forces department of the factory, and no one is allowed to approach.

A large shed was built on this side of the test site, mainly to ensure the conduct of the test, after all, it likes to rain in the summer.

Coming to the site, Liu Hai first looked at the experimental foundation on the ground, and the shield machine was to be assembled on such a basis, and then the experiment was carried out on the rock surface.

Bolts have been drilled around the rock face and poured with concrete, so as to prevent the top of the face from collapsing during the work, after all, at the beginning.

Then there is the construction module, that is, after the TBM is excavating, the subsequent rock wall needs to be supported by the construction module.

Even if it's pure rock, it's much better to have a built-in module, because pure rock also has some cracks, and if you are under pressure for a long time, it is likely to fall off some small pieces.

Don't underestimate these little pieces, sometimes these little pieces bring disaster.

Of course, the specific follow-up construction technology and construction process need to be pondered by the construction unit while doing it, and Liu Hai understands that there are not many construction processes.

It took two days to transfer the parts, and for this reason, this section of the road was also resurfaced asphalt.

It was precisely because of the transfer of parts that alarmed the leaders in the ministry that Sun Aiguo did not report this matter.

However, there are a lot of parts and components of the shield machine, and they are all relatively large.

Kyoto is like this, the factory to the test site on the way through some villages, now people are very vigilant, watching the flatbed trucks to transport things there, still tightly covered, so they hurry to report up.

"Already experimenting?" The leaders in the ministry immediately called Sun Aiguo over, and after listening to the report, the leaders were a little dumbfounded.

"It has already begun to be assembled, Comrade Xiao Liu said that it may take two months, and the eight characters have not been skimmed, so I did not report, so as not to make the leader happy in vain." Sun Aiguo nodded and said.

"Don't you believe in yourself, and you don't believe in Comrade Xiao Liu?"

"And this kind of large equipment, it will definitely be operated by the engineers in the future, and if they are not allowed to participate in the assembly, how will they repair and maintain it in the future?" The leader of the ministry said angrily.

So in the afternoon of the same day, there were more than 200 people on the test site of Liuhai, and these more than 200 people were railway soldiers.

The two leading technical backbones looked at the scene, their jaws were about to fall, so many iron bumps, and the 20-ton crane, it was not a small scene at first glance.

I had a greeting with bangs for a while, and then bangs hung up the drawings for everyone, and gave a general introduction.

"The tunnel boring machine was actually very early, but this is one of my improvements, and it is hydraulically driven."

"I don't know much about engineering, but I also know this mechanical equipment, and I have to ask the two of you to give me a lot of advice when I test it." Bangs said very modestly.

The two technical backbones are already dumbfounded, with a diameter of ten meters, and the maximum travel speed per day can reach five meters, of course, this is only the data of the design.

"The motorcycle factory is indeed a motorcycle factory, and if this kind of heavy machinery is successful, it can be said to be an artifact for our engineering construction."

"Section Chief Liu, you're polite, we haven't seen such advanced equipment in engineering technology for so many years."

"With this kind of equipment, the safety of our personnel can be greatly improved." The two technical backbones are both regimental level, and they admire the motorcycle factory from the bottom of their hearts, and this factory has quietly made such a big piece of equipment.

So with the assistance of more than 200 people, they began to assemble, and while they began to assemble bangs, they explained to them what this part was for and what it did.

Since that day, there have been leaders coming over continuously, and the next day is the leaders of several departments, and the roadheader is related to many projects, from ordinary tunnels, to missile silos, and then to some civil air defense projects.

Even the big leaders of the railways came here every once in a while to have a look, and once they came to see it, they itched in their hearts and wanted to see it.

At first, these big leaders only came to see once in three or five days, and then they basically came to see every day after work.

So Liu Hai couldn't go home, so he had to eat and live with these people, so many leaders, who came to see you every day, still want to go home, what else do you want?

Looking at the shield machine gradually taking shape in the shed, the big guy with a diameter of ten meters is comparable to a thigh-thick hydraulic column, and there are rows of hydraulic pipes of different thicknesses.

However, the place has also managed to attract the attention of some intelligence officers.

Some intelligence agents occasionally saw a ten-meter-diameter iron lump, one end of which was inside a cave.

Some intelligence officers thought it was a new type of weapon, possibly a cannon.

There were still such things as giant cannons in World War II, and they were very famous.

Of course, some people think that this is a newly built missile in the mainland, after all, it is located around Kyoto.

For a while, there were more intelligence spies around, and the risk of exposure was certainly greater when there were more of these people.

Bangs used two weeks to assemble the whole equipment, mainly in the assembly process, Bangs also had to explain to these engineers and technicians what this thing is for, and what to do in the future?

Finally, the day came to start the official test, and on this day, the leaders of this side gathered, the leaders of the ministry, the leaders of the troops, and the leaders of the motorcycle factory.

When the 10-metre-diameter TBM starts to rotate and slowly touches the rock wall.

With a clicking sound, the hydraulic column on the EPB slowly puts pressure on the machine in front.

From the middle of the TBM, the conveyor belt was constantly running, and gravel appeared in it.

These slags are left behind a four-way street, and the slag is constantly transported out, and the water used to cool the machine is constantly pumped in by the machine, which is used to cool the cutter head.

The surrounding leaders looked at the ten-meter-old shield machine, slowly rotating, which looked relatively slow, but looked at the gravel in the conveyor belt, and was also very nervous.

The machine ran for an hour in a row, and it advanced only ten centimeters.

Then Liu Hai organized personnel overhaul, mainly commanding the people under him, especially the more than 200 engineers who joined later.

Some interfaces, some loose, this is inevitable, after all, the first time to carry out the actual test.

When overhauling, I also use this book to write down, which place? When and what time to check, and whether there is hands-on maintenance.

Then a second test was conducted, and this time it was a little bit faster.

This time, it was obvious that the speed of the shield machine was a little faster, and there was more gravel on the conveyor belt behind it.

From 7 a.m. to 7 p.m., the machine ran for nine hours, and the rest of the time was shut down for maintenance.

The EPB has advanced two meters, one of which has already been laid with modules.

"Yes, great!"

"Can you produce a lot of people in your motorcycle factory?" The person in charge of the railway looked at this kind of tunnel that was formed at one time, and his voice was a little excited.

No one knows better than him, the leader, how dangerous it is to dig tunnels, especially now, when all kinds of machinery and equipment are relatively scarce.

It can be said that we have to lose a lot of people every year, which is also something that cannot be helped, our country has a large territory, complex terrain, and most of the border places are mountainous.

"Is that a success?" Sun Aiguo was a little afraid to be confident, what about the two months that he said?

"We have to continue to experiment, maybe there will be other problems with the machine that need to be solved." The bangs have been miserable in the past two weeks, and the food and accommodation are basically here, with a group of big men, not to mention how difficult it is.

"There's nothing wrong with wholeness, right?" The leader of the unit asked.

"It's not much of a problem with the whole, but the manual needs to be written while using it, which I can't help too much, and I don't know much about engineering." Liu Hai watched some engineers digging into the shield machine.

When the shield machine advances one meter and stops laying the module behind, it is necessary to use a small drill bit to hit the front to see what geological conditions are in front of it, no problem, and then the shield machine will continue to open and rectify.

The operation of this shield machine is quite complicated, because it is all mechanical, while mining and advancing, behind the shield machine is the hydraulic column against a piece of steel plate, the whole tunnel is supported by a piece of steel plate, on the one hand, to provide support for the shield machine itself, on the other hand, it is also to support the tunnel, after this steel plate moves, the cement module is laid immediately behind.

"Then you can let the motorcycle factory make the parts?" The head of the railway asked with an expectant tone.

"Yes." Bangs don't think it's a big problem, so they nod their heads, which saves time.

(End of chapter)