The Pengcheng military camp has begun to take shape, and countless soldiers and civilians are still busy in full swing.

Lu Bu left the city early in the morning with Chen Gong.

They seemed to have walked aimlessly for more than an hour.

Farther and farther away from Pengcheng, Chen Gong asked, "Wen Hou, where are we going?" ”

"This is it." Lu Bu stopped.

Looking around, he asked Chen Gong: "Is it difficult to control immigrants to Pengcheng?" ”

"It's hard to control." Chen Gong shook his head: "There are too many people, Pengcheng can't be resettled, and materials are also very scarce." Almost every day, someone breaks the law. I tried my best to restrain it, but it didn't work. ”

"It's that they're too idle, and it's that Pengcheng is too poor." Lu Bu said: "The so-called poor mountains and bad waters come out of the people, and the people have no money in their hands, so they will always feel unstable. The government has done nothing, and they have no way to make money, so they can only try their best to steal, rob, rob and rob homes. ”

Chen Gong was silent.

Lu Bu seemed to be saying that Diao Min was lawless, but in fact, the words were directed at the government.

The immigrants had just arrived in Pengcheng, and many things had not yet unfolded.

He wanted to make a difference, but he couldn't do it.

Control the place, there must be something to manage in the place!

"The soldiers and civilians came to Pengcheng with me, so I can't bitter them." Lu Bu said: "Only by enriching the people and strengthening the army can we achieve long-term peace and stability!" ”

"That's what Wen Hou said." Chen Gong responded.

Lu Bu pointed to a clearing: "The wellhead will be in this place." ”

"Wen Hou can see that there is coal down there?" Chen Gong asked.

"I don't have clairvoyance, how can I see it." Lu Bu grinned: "I'm just a blind man catching a cat, which one to catch." ”

Chen Gong is full of black lines.

He pointed casually, which meant that countless people had to open a tunnel to the underground here.

Once construction starts, it will be costly.

Not only is the investment of manpower and material resources unlimited, but the cost of copper money, grain and grass will also be a huge amount.

If Lu Bu really guessed nonsense, it would really be too child's play!

Chen Gong's expression was very strange, Lu Bu laughed, and pointed to the open space in front of him: "Gongtai is really a nonsense?" I just saw the rocks there and thought there should be coal underneath. ”

Looking at the stone pointed by Lu Bu, Chen Gong looked dazed.

The stone was no different from what he had seen before, and he really couldn't understand where Lu Bu could see that there was coal in the ground.

"The stones are light black, so you can see that there is coal not deep underground." Lu Bu said: "The coal in Xuzhou should be hundreds of steps deep, if it weren't for our inability to detect, I probably wouldn't have chosen here." ”

Lu Bu turned his head to look at the guard: "Order General Zang to bring all the recruited people here." ”

Jumping off the horse, Lu Bu walked to the stone.

Chen Gong followed and dismounted.

Squatting down and picking up a stone, Lu Bu looked at it over and over.

"Did Wen Hou find something?" Lu Bu kept looking at the stone, thinking that he had seen something again, Chen Gong asked.

"Gangue." Lu Bu handed the stone to Chen Gong: "You can find this thing on the ground, but you can see that the coal is not deep." ”

"Mining coal, what is Wen Hou's next step?" Chen Gong asked.

"Promote it to the people, select the good ones to forge steel, and create more abundant weapons for the soldiers." Lu Bu stood up: "There are still many things that coal can do, and that's all we can control at the moment. ”

Lu Bu took Chen Gong to patrol the vicinity, looking for the most suitable place to excavate the entrance.

They left Pengcheng and came here for more than an hour.

The guards returned to find Zang Ba again, and then brought people here, to say the least, it would take three or four hours.

After all, it is impossible for everyone to have a horse to ride when Zang Ba recruits.

Zang Ba came with Minfu, and Lu Bu had already chosen the location to start construction.

"Warm." Zang Ba came to Lu Bu's side.

Lu Bu glanced at the people he brought: "How many people did you bring?" ”

"Didn't recruit much, only brought more than 2,000 people." Zang Ba replied.

"How many stonemasons and carpenters are there?" Lu Bu asked, "Did you bring the blacksmith belt?" ”

"Both." Zang Ba replied: "It's just that there are very few craftsmen, especially blacksmiths, it's too difficult to find." ”

"Separate the craftsmen." Lu Bu instructed: "The others are in groups of fifty, and each group chooses the one who takes the lead." ”

He pointed to the chosen place: "Dig down from here, remember to dig out the slope, and people can go down the hole." ”

"Wen Hou is going to dig a tunnel?" Zang Ba asked in astonishment.

"You can say the same thing." Lu Bu said: "There are two kinds of coal mine entry heads, one is the vertical shaft, which is to lift vertically to send people down. The other is the inclined shaft, which one can walk down the ramp. We didn't have enough resources to drive up the shafts, so we had to drill inclined shafts to bring the coal up. ”

The coal mine has not yet been built, and Chen Gong and Zang Ba certainly do not know the specific structure.

Lu Bu didn't know much about coal mining either.

He just remembered the structure of the mine based on what he had seen before.

The unskilled folk carried tools and dug pits in the place designated by Lu Bu.

There are no more than forty or fifty craftsmen in total.

They were singled out and stood in separate pairs.

Lu Bu came to them.

His gaze swept over everyone's face: "Carpenter, please stand up." ”

More than a dozen people stood up.

Their expressions showed panic that could not be concealed.

"You're all carpenters?" Lu Bu looked at them.

"Yes!" More than a dozen people who stood up hunched their waists in response.

"When the alleyway is seen, I need you to support it with wood." Lu Bu asked, "Are you sure?" ”

"If it's not too deep, it should be fine." A carpenter replied, "If it's too deep, I'm afraid it won't be easy." After all, wood doesn't need to be iron, and too heavy it will definitely be crushed. ”

During the Eastern Han Dynasty, the output of iron ore was too small, and it was already stretched thin to make weapons and agricultural tools, and Lu Bu certainly did not want too many iron tools to be used in the mines.

He asked the carpenters, "What is the way to make the wood as strong as iron?" ”

The carpenters looked at each other, but no one answered.

Lu Bu asked again: "If the wood is soaked in tung oil, do you think it will be stronger?" ”

This phrase reminded the carpenter.

One of them replied: "In the past, if we wanted the wood to be heavier and stronger, we would paint it with tung oil. If you can soak it in tung oil, of course it will be as hard as iron. ”

"Then soak the wood in tung oil." Lu Bu said: "Not only must you be strong, but you must also be able to withstand decay. After all, wood soaked in tung oil is not as expensive as iron. ”

Iron tools are not very valuable after 2,000 years.

But in the late Eastern Han Dynasty, when the smelting industry was relatively backward, its value was far higher than that of tung oil.

Arrangements were made for the carpenters, and Lü Bu then instructed the stonemasons and blacksmiths to add a few stone and iron pillars at intervals to strengthen the roadway.