He was reborn and became a firefighter again?

Chapter 509: Captain, why are you crying?

Fang Huai unfolded the drawings and felt a little proud when he found that all the leaders were staring at them intently.

It has to be firefighting.

If it were any other army, unless he had mastered the ability to rub nuclear bombs with his hands, he would not be able to get the leaders to gather in a circle and listen to him attentively.

"Leader, I just asked someone to find a worker who worked in this mine last year. After checking it against the mountain, I found that this old drawing is still useful."

Fang Huai took the lead, and the leaders got closer.

"The main mine mouth and the auxiliary mine mouth in the picture have indeed changed their positions, but the worker said that there is a water outlet inside, which is used to discharge the underground water from the mine. It is still in use today, and it is here!"

Fang Huai said, clicking twice on the drawing.

In the iron ore production process, groundwater is inevitable. If the groundwater cannot be discharged in time, it will cause water accumulation in the mine, thus posing a serious threat to the life safety of miners.

The mine drainage system drains groundwater out of the mine in a timely manner through water outlets and other facilities to ensure safety during the production process. It is also to ensure the dryness of the underground working surface and prevent groundwater pollution.

Without this, the mine would not be able to pass the environmental protection test.

In fact, the workers are not sure whether this port is still there, but I heard that the boss is very picky. The purpose of changing the main and auxiliary mine ports is to facilitate mining, but if the drainage system can use the original one, the boss will definitely not spend money to change it. Make a new one.

Now, an expert next to him spoke.

"The water outlet? The location is usually relatively low, right? It is buried deeper! We have also thought about the water outlet, but it may be more difficult to enter from this position!"

"Yes! Lower!" Fang Huai said immediately:

“But look at this mouth, it’s on the side of the mountain!

I just asked the workers to point it out to me and observed the location. It was the valley between the two mountains. Due to the landslide, the valley was filled in, but because of the filling, the elevation has almost disappeared. It is smaller than There is a big crack next to it, and the mountain that was blown hollow inside is safer and less affected by the secondary collapse. We can immediately start to find weak points that are close to each other on the top for construction!

Moreover, the excavation depth in that place seems to be larger, but the soil volume is large and the terrain is relatively flat, so we can get on the drilling rig!

The excavator cannot come in now, but the main body of the drilling rig can be transported separately from the power machine! For small crawler drilling rigs, the main engine and power machine do not exceed two tons, and our aircraft can transport it!

Moreover, there are several kilometers of winding tunnels underground. Even if you go in, it will be very difficult for people to find them without drawings, and it will be difficult to call them during the excavation process!

But if the trapped miners inside have no water source, if they can move, they will probably go to the water outlet to get water! We drill from here, and it should be easier for them to learn about the movements during the excavation process, and it should also give them more hope of survival! "

After returning from Sichuan, he knew deeply how much people in the long darkness needed hope.

Those who were buried in the earthquake and had a strong will to survive survived better than those who were passive.

Fang Huai also started from "how to give people in the mine more hope of life" and found this plan step by step.

The leader sitting in the middle immediately looked at the mayor next to him.

The mayor understood and looked at the experts beside him.

"What do you think?"

A middle-aged man wearing glasses held up his hands, touched his chin, and said:

"I think it's feasible. We might as well organize people to go up and see how thin the weak points are, the soil-rock ratio, the solid-rock ratio, and how it compares with the surroundings. We'll know after taking a look. But I came in just now When I took a look, he said that there was at least one thing right about that location, the construction risk was much lower. "

These words undoubtedly boosted everyone's confidence.

The big leader slapped the table and made the final decision.

"Don't waste time, organize people now and see!"

The expert's argumentation process was much simpler than Fang Huai imagined.

Everyone determined the purpose based on the location of the water outlet on the drawing and the roughly calculated main and auxiliary mine entrances. Fang Huai, several experts, and two armed police soldiers went up with a GPS and a level to locate the original valley section and the landslide. We walked around the mountain to determine the altitude and altitude.

By calculation, the excavation depths on both sides are about the same, about 200 meters.

There is nothing more to say.

One side is relatively gentle, the other side is steep; one side is relatively stable, and the other side is easy to collapse and dry out.

Once the Jiwei Mountain side collapses for a second time and the mountain mass at the front elevation collapses, it will be very dangerous to retreat and work again, and the thickness of the covering layer may increase again.

Of course, you can blow up the mountain and completely eliminate the risk.

The key point is that blowing up a mountain means giving up search and rescue on the outside. If such a big mountain is to collapse, the covering layer will have to be pushed out for hundreds of meters, and the outside of the covering layer will become the inner perimeter.

The big leader was very decisive and waved his hand:

"Just do it! Do it right now!"

The entire city's resources have been fully mobilized.

Another Z-8 helicopter has arrived.

Large and small drilling rigs that can meet the lifting conditions, geological radar, and physical remote sensing detectors were towed to the entrance intersection.

The number of excavators outside the site has increased to fifteen, all with the prefix "3" or above. The senior county official is personally in charge of the excavator team. Who dares to slow down work?

The driver worked in two shifts, and the sound of the rocks colliding with the excavator and the sound of the drill hitting the rocks could be heard clearly from a kilometer away, as if they were trying to push the rocky beach flat.

In addition, the Mi-26 rented by Feilong Airlines departed from the Daxinganling Mountains in Northeast China at noon, returned to Harbin for a short rest, and flew to Chongqing.

Reporters also kept arriving.

In fact, Fang Huai does not hate reporters.

Although sometimes I am too busy and don’t want to talk to him, I won’t reject him and I will cooperate with him in interviews when I have time.

Because there are many reporters at the disaster site, it represents greater attention and greater support. The victims and their families will also receive more hope and care.

At 3 o'clock in the afternoon, there was a bang next to Jiwei Mountain, and huge yellow smoke rose from the rock piles.

After a tentative blast, the mountain remains stable.

Fang Huai observed for a while and found a walkie-talkie labeled "Monitoring Team" from a bag on the ground.

"Each monitoring point will report its observation status."

"Point 1 is normal."

"Point 2 is normal."

"At point 16, sporadic gravel fell from Jiwei Mountain, and the transverse crack surface is normal."

Fang Huai then changed the intercom and said: "Cleaning team, dealing with the drilling rig working surface."

After saying that, with a wave of his hand, a crawler drilling rig that had just landed and been assembled slowly advanced past him and headed towards the blasting point.

"Peripheral search and rescue teams, please stay away from the 150-meter range of Jiwei Mountain for the time being. A second blast may be carried out in an hour."

"receive."

The rumbling sound of Zhi-8's propellers approached. Fang Huai looked up and switched to another walkie-talkie.

"The equipment response team should have arrived. The air compressor is currently not in use. They are looking for a suitable place to stack it on the platform."