"Chixiao! Slash the white snake's red sky! Yuwen Rutong exclaimed.

At the same time, his eyes involuntarily looked at the saber on Zou Yu's waist, and he didn't expect it to be the famous Chixiao.

This is also why Zou Yu doesn't want to be swaggering, and the people who know about this matter are not the kind of people who talk a lot, so they are not known by most people.

"Yes, it is indeed Chixiao, and it was compensated for the defeat of the Goguryeo people back then." Zou Yu nodded and said.

"Chixiao disappeared from the Central Plains for hundreds of years and saw the light of day again, which shows even more that the prime minister's destiny has returned! The subordinates thought that Cheng was quite obedient to the will of heaven and ascended the throne as the emperor! Yuwen Rutong said with a straight face.

It's persuasion again, to be honest, Zou Yu has always considered it, but he suddenly mentioned it, and he seemed to be a little sorry for Concubine Wei, and there was a cheap son who followed him for a lot of time.

"We'll talk about that later." Zou Yu rubbed his forehead and said.

Seeing that Zou Yu's tone was loose, Yuwen Rutong and Pei Shiqing looked at each other and smiled, and they no longer persuaded him. After discussing the itinerary, it was decided that Yuwen Rutong would take He Chou, follow Zou Yu, and go to Yizhou; And Pei Shiqing stayed with Empress Dowager Xiao for a while.

This time, Pei Shiqing is a courtier that the Empress Dowager Xiao is familiar with, and secondly, he is also reciprocating, since the Empress Dowager Xiao generously sent the jade seal of the country, of course Zou Yu has to entertain her.

Tell Pei Shiqing to take Empress Dowager Xiao for a good turn, and there is no need to hide anything, so that it is better for her to see clearly, at least she will not feel that she is not entrusted.

Yizhou! Fifty miles away from Zhuolu City, there is a narrow township, with a radius of twenty miles, all of which are continuous mountains, and these mountains are all stones, whole big stones, and even big trees are very few, so after taking Yizhou, the people nearby were relocated to the vicinity of Zhulu City.

One of the biggest reasons to choose this place is because the population has moved out, saving a lot of effort.

Another reason is the topography! The mountains here are thick and do not leak, and the water storage is not afraid of the risk of collapse; Two mountains sandwiched a ditch, the two highest mountains, just sandwiched in the middle, and then closed on the side facing the Zhuolu Plain.

Closed here, it is only more than 1,000 meters wide, which is just right for the construction of the dam mouth of the reservoir.

As early as two months ago, Li Chun led people to start the preliminary preparations, and when Zou Yu came, it was in full swing here.

In order to avoid waste, the big trees in the mountains have been cut down, and in the future, several hills in the middle of the reservoir, big stones, and pure stones, are being mined and transported outward; The sand and gravel by the river, where the easy water branches, have been piled up like a mountain and piled up at the foot of the mountain.

Smoke billowed in the distance, and black smoke and dust obscured half of the sky, it was cement firing, which was in progress.

"Fortunately, no one is checking the environmental protection now." Muttering to himself, Zou Yu took his gaze back.

"See the Prime Minister!" Li Chun raised his head from the middle of a large pile of papers, saw Zou Yu, and hurriedly saluted.

"No need to be polite! How's the preparation, tell me about it? Zou Yu waved his hand and asked?

"At present, 30,000 square meters of sand and gravel have been prepared! 10,000 square meters! Big bluestone 100,000 square meters! Thirty cement kilns, burning every day, currently have 3,000 square meters! Li Chun reported.

For the convenience of craftsmen, Zou Yu specially made a tape measure for them! Ruler! It is calculated according to the square quantity. Pulleys made of stainless steel, steel wires doped with copper! Pure steel shelves! Steel pipes, fasteners! Anyway, Zou Yu could think of it, and everything that could be done was made in large quantities and shipped over.

In order to take care of the materials here and prevent anyone from destroying them, he also specially transferred the most experienced Liu Renliang over, along with his descendants!

This time, the reservoir was built not only to irrigate the land in the future, but also to explore the experience of large-scale project construction.

Water conservancy and roads will be the two major large-scale projects in the future, which has no experience before, this time not only Li Chun, Yuwen Rutong has been Yuwen Wen's three top masters! It also brought more than 300 technical talents of various kinds, just to train a construction team.

Preparations were made in the early stage, so the construction was still very fast, especially the bottom, the bottom of the dam is 100 meters wide, and it is completely stacked with blue stones.

The entire dam, in its final shape, is a half-crescent pyramid pattern. The crescent moon is facing the reservoir side, so that it can be well unloaded, and the most protruding part will have three large and four small, seven water release valves!

The large valve is underneath, and it is a steel plate two meters wide, three meters high, and thirty centimeters thick! The small ones are also one meter wide and two meters high; The difference between the top and bottom is five meters.

The valve is pulled by three dedicated actuation chambers. There are more than 50 gears of the size and more than 200 pulleys, and when the water is released, the small door must be put first. As for the gate, it is located at a deeper depth and has more water pressure, so it will be driven by water with the help of the impact of the water released from the small door.

In order to successfully complete his first large-scale project, Li Chun not only used cement between the bluestones, but also used the old method - glutinous rice mortar in the middle of the middle layers.

Glutinous rice mortar is also boiled into porridge, added to lime, and used in the construction of the Great Wall and the tombs of emperors and generals.

According to Li Chun, glutinous rice mortar, after solidifying, the knife cannot be cut in, and the hammer cannot be knocked down.

Although he has tested the efficacy of cement, he is still a little uneasy in his heart, after all, such a huge project, if an accident occurs, it will affect most of Yizhou, at least hundreds of thousands of people will guard the disaster. Therefore, Zou Yu let him go, and deliberately collected all the glutinous rice for him to use.

However, this is the north, even if Zou Yu buys it with all his might, it will only cost more than 3,000 catties.

In order to build this reservoir, Li Chun can be said to have put a lot of effort into it, and in just over two months, people are not only much haggard, but even half of their hair is white.

"Li Langzhong, it's not okay to go on like this! Look at you, keep going like this, a reservoir has not been repaired, and you will collapse. Zou Yu said with concern.

"Xiaguan is fine!" Li Chun said with a smile.

"No, you have to rest, and when you wake up, we'll officially start work!" Zou Yu said categorically.

"It's... You can't delay a big event because of the dismissal! Li Chun waved his hand and said.

"Your body is the biggest thing! I need you to build a second, a third! Even build reservoirs all over the country! So now go down and sleep! That's an order! Zou Yu said solemnly.

"Whoa!" Li Chun was not good at words, felt Zou Yu's sincere concern, his heart warmed, he gave up, and then obediently went back to his room to sleep.

On the other side, He Chou watched coldly, seeing that Zou Yu cared so much about Li Chun and attached so much importance to talents, he couldn't help but sigh a little in his heart.