The usage of the horseshoe shovel is the same as the Luoyang shovel.

When using, stand upright, legs apart, hold the pole with both hands, place it on your chest, land your shovel head on the ground, and poke down on the ground between your toes. When the bottom of the horseshoe-shaped shovel is submerged in the soil, then the shovel head is rotated continuously, alternately beating, and then the shovel is lifted to pull out a cylindrical piece of soil.

By repeating this, you can continue to dig downward.

A horseshoe shovel with a long white wax rod can drive several feet into the ground. A deep cylindrical pit was carved out. The craftsmen of the Ji Kingdom took the excavated soil and weighed it to determine whether the place was suitable for building a city. As for tomb robbing, it is not yet a trend. Besides, the royal mausoleums are guarded by soldiers, and there are nobles in the gardens guarding the mausoleums. How can thieves get in. The large-scale theft and excavation of the imperial tomb began with Dong Zhuo, and was later carried forward by Meng De.

Zhu Ling led a hundred people, and Su Yue carried the good craftsmen of the Ji Kingdom, divided into several machine vehicles, and arrived at the original camp. As soon as Su Yue gave the order, the military vehicles immediately surrounded a small camp, which could be attacked and defended. Then the craftsman of Ji Guoliang held a horseshoe shovel, spread it out, and poked the ground hard.

Dig out the soil and arrange it neatly. Experienced artisan of the Thistle Kingdom. The change in the color of the soil layer alone can be seen.

In a nutshell.

The soil quality of the soil layer in depth is different from the soil layer that is artificially backfilled after excavation.

Soon, the craftsmen made a discovery. Continuing to poke downward, the white wax rod sinks suddenly. Sand and dust gushed out, but no bottom was seen after the shovel was lifted.

"How?" Zhu Ling asked in a low voice.

"An underground tunnel has been dug through." Signaling the craftsman to dig the hole and refill it, Su Yue said softly.

"What about it?" Zhu Ling asked again.

Su Yue's fingers have been digging holes around this place, and the craftsman who is arranged in the shape of a "ten" said: "Find out the distribution law of the underground secret passage." ”

"What about finding out?" Zhu Lingsan asked.

"It depends on the size." Su Yue replied three times.

Soon, craftsmen one after another opened up underground tunnels. But Su Yue's expression became more and more serious.

"Nowadays, it's big or small." Zhu Ling couldn't help but ask.

"It's extremely wide-ranging." Su Yue is single-minded. wrote and drew on the drawing board, but his mouth did not stop: "The thief has been hollowing out the entire Guangzong underground for half a year." The secret passages are as dense as spider webs, covering the whole territory. While we were talking, the thieves were still digging underground, and we still didn't know. ”

Zhu Ling subconsciously lowered his head and looked at the soles of his feet: "What should I do now?" ”

"It's like a mine needs to be ventilated. With such a large underground pipe network and someone hiding, there must be a ventilation aperture. Find the nearest vent first. As he spoke, Su Yue suddenly stopped writing: "Then, I need to wait for the army to accompany me to take a look." ”

"Hmm!" Zhu Ling nodded heavily. It is not possible to find a way to the tunnel, but it is good at fighting.

"Guangzong has a hidden great magic machine." Recalling Hu Yu's secret letter, Su Yue couldn't help but feel a trace of gloom in his heart.

Nowadays, the mine, ventilation, lighting, and support are very mature. For example, the Dongling mine of the eldest princess Tang Muyi: dig the shaft first, and then dig the crossway. In this way, the tunneling is carried out in layers up to the mining face. And set up ventilation, lighting, support and other facilities at intervals.

The Yellow Turban Thief is like this in the Gwangzong underground. The only difference is not mining. Is it just for hiding soldiers, or is it for other purposes? It is not known yet.

In other words, the soil quality of Guangzong has also fulfilled the rapid excavation of the Yellow Turban rebels.

Straight to the point.

"Found it!" Suddenly, I heard a soft drink.

Seeing that the craftsmen had gathered around, Zhu Ling also arrived with Su Yue.

The craftsman has emptied the surrounding sand and soil. Zhu Ling looked at it fixedly, and it was a withered bamboo that was broken by roots and buried deep in the soil. This then asks, "How can I ventilate without gaps around?" ”

"Wait and see." The craftsman takes the hook claw, hooks it into the top bamboo knuckle, and pulls it out vigorously. He pulled out the dead bamboo from the ground. It is as if a long bamboo growing on the ground has shrunk into the ground one by one.

The four walls of the bamboo tube have been hollowed out in sections and are being used for ventilation.

"Just take advantage of the darkness of the night, use a thin bamboo, and raise the bamboo tube high from below, and you can ventilate yourself." Su Yue looked around at this vast open space: "There must be a lot of bamboo air holes." ”

"I see." Zhu Ling suddenly woke up.

All it takes is a bamboo forest, and the thieves can ventilate the entire underground tunnel. Such a simple and functional design is truly ingenious.

However, the fist-sized bamboo tube is buried in the ground, and I don't know how deep it is, how can people get in. Su Yue's desire to go down to explore was frustrated. The inside story is far more complicated than you think. Among the yellow turban thieves, there must be a master of tricks.

Seeing that Su Yue was silent, knowing that he was thinking hard about how to deal with it, Zhu Ling didn't dare to disturb.

Suddenly. Su Yue suddenly sighed: "For today's plan, there may be only one way left." ”

Seeing that Su Yue's face couldn't bear it, Zhu Ling's words came to his mouth and swallowed back by himself. This method must be extremely powerful, and it will hurt the heavens and the peace.

Several good craftsmen of the thistle country also woke up: "Could it be ......"

"Yes, yes." Su Yue cleaned up his mood: "Return quickly, this plan needs to be discussed with Lu Cheqi." ”

"Okay."

Then they boarded the carriage and turned back.

After listening to Su Yue's strategy, Lu Zhi's face sank like water: "Want to dig up Zhangshui and flood Guangzong?" ”

Su Yue nodded lightly: "Zhangshui is abundant, once it is poured into Guangzong, the underground tunnel dug by the Yellow Turban Thief will be destroyed in an instant." According to the expectations of the lower officials, the organs in Guangzong City will also be destroyed. This battle is easy to hear. ”

"There are hundreds of thousands of innocent people in the city of Gwangzong." Lu Zhi asked, "Is it possible to protect it?" ”

Su Yue shook his head: "In a few months, to be able to dig such a huge underground tunnel, presumably the people in the city have also made great contributions. At this time, they may all be hiding in underground caves, and it is not known. ”

"In this way, once the water floods, it will flood the crypt. Shall not all the people have perished? Lu Zhi looked angry.

"Perhaps." Su Yue told the truth. In fact, this is just the most extreme hypothesis. Even without ventilation, thieves would not have been able to hide hundreds of thousands of people underground.

The judge got up and said, "Ming Gong." The humble thought that the so-called 'hundreds of thousands of people' were all Taiping disciples who defected to Zhangjiao. Yes, not innocent. The implication is that there is no need to care about the life and death of these people.

"I already know the meaning of due south." Lu Zhi shook his head resolutely: "However, this strategy is too ruthless. Hundreds of thousands of people, young and old, women and children, drowned. Even if I am defeated, what is the difference between my brilliant heavenly man and those inhumane barbarian thieves who drink blood and are inhumane. ”

"Returning to the general, or there may be another way." Seeing that there was nothing to do, Su Yue said again: "Seek the near and far." ”

"How do you go far and near at the expense?" Feng Ji hurriedly got up and asked.

"Guangzong is close to the water. This water is a branch of Zhangshui, and the flow of water is gentle. A long ditch can be dug to divert this water into it. Su Yue said: "You only need to set up another sluice in the canal to block the incoming water." It will never be like Zhangshui, once the embankment is broken, it will flood everywhere and cannot be cleaned up. ”

"Zhangshui is north, and the water flows into Yan."

Fushui, named because it originated in Fushan, is the branch of Zhangshui, and the confluence of the mainland.

"Where do you get the water from?" Lu Zhi asked.

"Bo Luojin."

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