Qiu Feng returned to the coal miners' temporary camp, set up a marching tent, and began to rest. It was a rescue operation all day and night, and it was indeed quite hard.

Before, there was only one coal mine with a total number of nearly 100,000. Qiu Feng really couldn't think of the idea of ​​building a new city. After all, resources were limited.

But now there are another 100,000 miners, and more importantly, they are so close. This makes it completely necessary to build a new city, but I don't know if this area is suitable for building a city.

Qiu Feng woke up after resting for three or four hours. He ran to the construction site on the mountain peaks around the barrier lake. The goblins and dwarves had already excavated three tunnels. The shape of the tunnels this time looked strange.

The height of the tunnel is only about three meters, but its width is actually six meters wide, leading straight to the mountain wall near the barrier lake.

Qiu Feng randomly found a tunnel and walked to the end. He found that some water was beginning to seep out. He asked a dwarf engineer next to him: "How thick is the mountain wall left that has not been dug out?"

The dwarf engineer said: "Master Star Lord, there is no precise data on how thick it is, but according to the experience of our dwarves, it should be within 5 meters at most, and there is no way to get through more than 1 meter."

Qiu Feng reached out and touched the 60-centimeter-deep gunpowder filling hole dug by the Bawang Town Engineering Department. He found it was a little damp and asked, "Isn't this a big problem?"

An engineer said: "Commander, we will not arrange the gunpowder until you give the order, and plum blossom pits will be used to fill the gunpowder packets on each mountain wall. There will be at least five gunpowder bags on one mountain wall, so it is not a big problem.

Moreover, from filling the gunpowder package to detonating it, it will take no more than ten minutes at most, and it will definitely be successful, I can assure you."

Qiu Feng nodded and said: "Then get ready, Qiu Weiqiang. When reloading at the end of each tunnel, there must be a general with a different-dimensional bracelet who can report the situation at any time. We will strive for a one-time blasting success."

Qiu Weiqiang said: "Yes, Commander, please go to the temporary resettlement camp for miners in this mine to issue orders. It is less than two kilometers away from the edge of the coal mine miners' camp. It is safe there."

Qiu Feng glared at Qiu Weiqiang and walked out of the tunnel. About 100 meters away from the tunnel entrance, Qiu Feng entered behind a temporary bunker, opened the legion channel, and shouted: "Blast the tunnel in three places.

The evacuation of personnel without light begins now, and the time limit is five minutes.

Five minutes later, the remaining generals contacted Lieutenant General Qiu Weiqiang via a single line to report the situation."

Soon, Qiu Weiqiang shouted on the legion channel: "Report to the commander-in-chief that the evacuation of the three tunnels has been completed. There are only eight engineers left in each tunnel ready to load the gunpowder packages, and there is also a general on-site command and coordination."

Qiu Feng shouted on the legion channel: "Deploy the fuse first, and after loading the gunpowder bags, all personnel evacuated immediately, leaving only one engineer to light the fuse.

The engineers who lit the fuses did not need to wait for further orders and evacuated immediately after the fuses were ignited."

Qiu Weiqiang shouted on the legion channel: "Three tunnels, one hundred and fifty meters long lead wires will be laid. After the lead wires are laid, we will notify you in advance."

Less than five minutes later, Qiu Weiqiang once again shouted on the legion channel: "Loading the gunpowder bag, one minute of work. Connecting the fuse and gunpowder bag, one minute of work."

The operation is completed and everyone has evacuated the tunnel. The generals will stay at the lead line 150 meters away and wait for further notice."

Qiu Feng instantly understood that Qiu Weiqiang was preparing to let the generals light the fuse and be the last to evacuate. Although Qiu Feng was a little dissatisfied with this arrangement, Qiu Weiqiang was the number one member of the Seven Demon Star Army after all. Since he had already released the words on the legion channel

Come on, Qiu Weiqiang's dignity must be maintained no matter what, so Qiu Feng won't say anything anymore.

Another three minutes passed, and Qiu Feng had already seen the engineering soldiers rushing out from the exit of the tunnel he was paying attention to. The eight engineering soldiers came out talking and laughing, and there was no sense of tension as Qiu Feng thought.

Seeing Qiu Feng's serious face, an engineering soldier came over and said: "Commander, you don't have to worry too much. A 150-meter lead wire, even a fast lead wire, will take more than half an hour to burn. As long as you are not a person with limited mobility,

Evacuate the 50-meter tunnel and the 100-meter safe area in half time, and there will be no problem behind this bunker.

What's more, in order to obtain the status of military generals, our generals have to undergo rigorous physical training in the early stages, so you don't have to worry.

But no matter what, our Lieutenant General Qiu Weiqiang can still think about our grassroots soldiers and let the generals light the fire and cut off the rear, we are very grateful."

When Qiu Feng heard what the engineer soldier said, he breathed a sigh of relief, rolled his eyes and said, "You don't look like a grassroots soldier, you look more like a veteran."

The engineer soldier chuckled and said, "Commander, I was also responsible for the blasting at the Shanliang camp. I have rich experience."

"Light the fire. After lighting the fire, evacuate immediately!" Qiu Weiqiang's voice sounded again on the legion channel.

After waiting for more than forty minutes, a dull explosion sounded, and the ground began to shake. Qiu Feng even looked at the sky involuntarily, fearing that the towering mountain peaks would collapse due to the explosion.

Fortunately, these things did not happen, and there was another two or three minutes of silence. However, the next moment, Qiu Feng even felt the strong wind blowing from behind the bunker, and then a water column almost shot out of the tunnel exit, spraying three times.

It fell to the ground after more than ten meters, roaring and running towards the low-lying area along the lower part of the mountain.

Qiu Weiqiang came over and said: "Commander, the water level drop of this barrier lake is at least thirty meters. Alas, it still has to be left for a long time."

Qiu Feng said: "Don't talk nonsense. Contact the other two places to see if the blasting has been successful. There are livable renovation engineers here, and the blasting has been successful on both sides. They can easily calculate how long it will take to empty the air.

"

Qiu Weiqiang immediately opened the different-dimensional bracelet, contacted the generals from the other two locations, and then reported to Qiu Fenghui: "Report to the commander-in-chief that the other two locations have also been successful."

Qiu Feng turned around and asked the senior livable renovation engineer beside him: "How long will it take for the three tunnels to drain water?"

The livable renovation engineer buried his head in calculation for a while and said: "Master Star Lord, if it is only thirty meters deep, it can be drained in about a week; if it is fifty meters deep, it may take a month; if it is 100 meters deep, it will take about a month.

It can be shorted in about half a year.”
Chapter completed!