The level of open and secret struggle between countries is too high, and a small person like Ye Han can't touch that level at all, and the attention of him and all the astronauts stationed on the moon is focused on the construction of the base. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

With the gradual expansion of the No. 1 base, the grain production has gradually increased, and the number of astronauts sent to the moon has also increased, further accelerating the construction of the base.

In early June, the tunnel construction site.

With a muffled bang, the entire tunnel shuddered, countless boulders fell from the sky, and the collapsed tunnel crushed the laser boring machine under the rock pile.

"It's a landslide, it's a landslide!" The construction team was in a mess and immediately reported the news.

Gao Kai, who received the news, was as big as a fight, and he was very depressed, but the first task at the moment was not to figure out the cause of the collapse, but to rescue people first!

He immediately rushed to the construction site: "How are the people?" Got in touch? ”

The excavation team leader replied: "I got in touch, and the person is fine." ”

After the smelting group formed its production capacity, it greatly alleviated the shortage of metal materials, which was originally just a chassis and laser equipment roadheader, but now it has been covered with a layer of heavy ultra-low temperature titanium alloy armor, and the carbon fiber wheels have also been replaced with tracks of the same material, which is not so much a laser roadheader as a laser roadheader.

However, no matter how strong the protection is, it can't withstand the hundreds of tons of rocks.

Gao Kai breathed a sigh of relief: "It's okay if people are fine, how much time does it take?" ”

"Two hours." The head of the tunneling team said, "Xiao Zhou still has two hours of oxygen. ”

Gao Kai looked at the tunnel blocked by boulders: "How long has it collapsed?" ”

"More than twenty meters."

"Can you get through in two hours?"

The excavation team leader shook his head: "It's very difficult, and it may collapse again at any time." ”

Gao Kai's temples jumped: "Go all out, if you want people or equipment, I'll transfer them for you!" "If you don't collapse sooner or later, you just collapse at the juncture when the tunnel is about to break through, what's going on?

"It's not about people and equipment." The excavation team leader shook his head, "The tunnel is so wide, there is too much equipment to enter, even if a few more TBMs are transferred, it can't be installed, if it collapses again, it ......."

The working method of the excavation team is to excavate a section and reinforce a section, and the collapsed sections are all tunnels that have just been dug today and have not had time to be reinforced.

"I don't care what you do, give me time." Gao Kai said.

"Four to five hours...... At least. ”

"Leave the tunnel alone, save people first!" Gao Kai was irritable, "Let's find a way to send oxygen in first, and take the rest slowly." ”

The head of the excavation team nodded: "I can only do this first, but ......"

"It's all burning eyebrows, what are you selling? If you have something to say, say it! ”

The excavation team leader made up his mind: "Director, you also know that the tunnel will be dug soon, and the team analyzed a few days ago that the outer layer of the mountain is weathered and loose, and it is very likely that there will be a landslide when digging the outer layer......

"What the hell are you trying to say?"

"I mean, could it be that the TBM has dug into the weathered surface?"

"What do you mean?" Gao Kai asked curiously.

When it comes to weathering, people who don't know it will instinctively associate rock weathering with wind, but in fact, weathering has nothing to do with wind, but a very complex process of rocks, which can be roughly understood as the role of physics, chemistry and biology.

For example, thermal expansion and contraction caused by changes in heat and cold; dissolution of minerals by water; rooting, growth, and so on.

There is no air, no liquid water, and no lush vegetation on the moon, and no matter how you look at it, weathering and the moon are not related.

However, there are no absolutes, the lunar environment is a single point, but the moon has a huge temperature difference between day and night, and the surface is hit by high-energy particles and micrometeors all year round, which can also cause the weathering of the lunar rock formations.

Weathering means disintegration, it means alteration, it means a significant reduction in strength, so the excavation team can make inferences about the possibility of collapse.

But whether weathering is not weathered, does it have anything to do with rescue?

The excavation team leader compared a small angle with his hands: "The outer edge of the crater is thinner, and the regolith layer is thinner, I mean, can you see the situation of the collapse point from the outside, if you can see the obvious landslide, there must not be many rocks on the TBM, can you cross the top of the mountain, and carry out rescue directly from the outside......

"Where did you get all this nonsense!" Gao Kai didn't fight in one place, and it was a simple way to let the excavation team leader say that it was a foot wrap.

He immediately shouted on the radio: "Communication Center, give me Ye Han's frequency!" ”

Although the astronauts on the moon have military backgrounds, and most of them can play radio well, there are always some second-hand knives that are not enough.

Moreover, there are more and more astronauts, and the number of groups increases, and each group has its own communication frequency, and no matter how good the memory is, it is impossible to write down all the communication frequencies, so the communication center responsible for the transfer came into being.

Beidu has not had the luxury of arranging a few astronauts to work as operators at the moon base, and the communication center is actually on the earth, and its function is to provide communication frequencies for astronauts, which is essentially equivalent to a manual number search platform.

A few seconds later, Gao Kai received the data sent back from the earth, and the communication equipment automatically adjusted the communication frequency: "Call Ye Han, please answer if you receive it!" ”

"Ye Han received it, please speak!"

"Help me see if there is any change in the satellite image of the south exit of the tunnel!" As the commander of the base, Gao Kai himself has the power to mobilize satellites.

However, the only satellite receiving equipment in the base is the functional cabin under the name of the military group that houses power armor, and he wants to obtain satellite images in several ways: one is to apply directly to the ground, and the ground will control the satellite around the moon; the second is to leave the construction site and personally enter the functional cabin of the military group; The third is to directly contact Ye Han, who is responsible for monitoring the international base, and let Ye Han retrieve the image.

Ye Han must be in the military cabin during this time period, and the most convenient and effective method is obviously the third item.

Ye Han immediately retrieved the satellite image and enlarged the coordinate point of the south exit of the tunnel: "Old Gao, the coordinate point has collapsed a little. ”

"Are you sure?"

"Sure!" Ye Han continued to zoom in, "The image is very clear. ”

"Great!" Gao Kai was excited, "Ye Han, listen to me, I need you now!" ”

"I don't like men!" At this time, Ye Han didn't know that there was a landslide in the tunnel.

"I don't like it either...... Don't interrupt and get down to business. Gao Kai's face was black, "The tunnel collapsed when it was dug to the exit, and there was a person buried underneath, and he still had two hours of gas, and it was too late to dig from the inside, so he had to try it from the outside, even if he sent some air." ”

Ye Han immediately became serious: "Understand, give me five minutes!" ”