Daiko 305 years.

This year, Shuzhong ushered in a rare tranquility, and the stability of the northern and southern fronts made Yang Yi have a short period of relaxation, so Yang Yi decided not to start a major war in a short period of time, and took this precious period to sort out the political affairs of the territories under his rule.

In addition to the new policy that has been slowly promoted by the Great Yue Kingdom, Qiongzhou and Qingzhou, which have just experienced war, and Wenzhou, which were conquered only a few years ago, are also the key areas of Yang Yi's administration.

However, no matter how busy Yang Yi is in government affairs, there are two things he has not let go, one is naturally that he does not have to find time to spend with his son Jian'er.

When it comes to his son, Yang Yi will always cry and laugh, because as long as Yang Yi picks up the little guy, the little guy will definitely pee in Yang Yi's arms. Yang Yi is also short-tempered, he simply doesn't put on a diaper when he hugs Jian'er, and then Jian'er will willfully send him a boy urine, so that Yang Yi will feel that there is always a smell of urine on his body no matter how many times he takes a bath.

On the other hand, what Yang Yi must do every day is to go to Guangming Academy to teach.

As the honorary dean of Guangming Academy, Yang Yi delayed many courses last year because of the war for a whole year, and he had to make up for the courses in the shortest possible time.

Yang Yi is also helpless, he is not a teacher himself, but in the whole Shuzhong and even the whole world, he may be the only one who can teach those students postmodern civilization knowledge, so he can't help but do it himself.

Winter in the southeast comes and goes as fast as it comes, and in the blink of an eye, it is almost time for winter to turn to spring, and the snow in winter will begin to melt, and the dry Yokogawa River will be surging again.

Yang Yi has not returned to the palace for five or six days, and in the past few days, he has led a hundred and ten students from Guangming Academy to work on the Yuzuiwan construction site in the Hengchuan River.

The Yuzui Bay Water Conservancy Project has reached the most critical moment, and the Neijiang River dug out of the mountain has converged from the east and west, and it can be completed as long as the last incision is opened.

However, this last incision is also one of the most difficult to overcome.

The incision is embedded between the two mountains, and there are almost no mud blocks, all of which are the hardest solid stones. In the era when there were no large machinery, if you want to dig completely by hand, I am afraid that you may not be able to dig through it for a year or two.

The dry season is coming to an end, and once the snow melts in the mountains in the upper reaches of the Yokogawa River, it may take another year for the Yuzui Bay project to be restarted.

Yang Yi can't wait, what he lacks most now is time.

After a melee last year, Yang Jie in Guanzhong and the princes of the Central Plains have lost a lot, everyone has seized the time to lick their wounds, and Shuzhong finally got such a period of relaxation in the war, and when the princes' wounds heal, the big war will follow.

And there is even worse news, that is, the Hengchuan River bed line that was combed a few years ago has been raised again, if the Yuzui Bay project cannot be put into use before the arrival of summer water, the Hengchuan River, which has been silent for several years, is likely to bring a surprise to Yang Yi this year: to destroy the hybrid rice cultivation that Yang Yi has so hard to popularize in Chengdu.

Yang Yi will never allow such a thing to happen, he can't afford it, and the people of Shuzhong can't afford it.

Therefore, after discussing with Zhou Gongyi and Wen Jihuai, Yang Yi decided to blast Neijiang.

This blasting can be said to be very difficult, and the amount of explosives needed to blow up the entire mountain gap is extremely large, and Wuzhi Mountain has never controlled such a number of explosives at the same time. What is even more difficult is that the blasting must not only blow up the gap, but also ensure that it does not damage the mountains on both sides of the river.

Such a huge blasting project is definitely a very difficult thing even in Yang Yi's previous life in the modern society, let alone in this ancient world where there is no experience and lack of mechanical equipment.

"If there is less explosives, the mountain cannot be blown up, and more explosives will blow up the river on both sides of the river, resulting in the destruction of the entire preliminary project, and the direction of explosives blasting must also be extremely accurate, and the mountain must be poured to the west of the lower terrain, otherwise there will be a narrow shape at the top and wide at the bottom, which will have great resistance to the drainage of the inland river in the future."

Wen Jihuai used his finger pen to express his views on an accurate hydraulic engineering drawing.

Yang Yi frowned, leaned against the table and said to Zhou Gongyi on the side: "Old Zhou, what do you think?" ”

Zhou Gongyi said: "After a few days of discussion, all the relevant technicians of our institute believe that the best plan is the drilling and blasting method proposed by Your Highness, and we are still experimenting with the specific implementation plan." ”

Yang Yi said: "Give you five days, you must come up with results." ”

"Five days? This..."Zhou Gongyi is embarrassed.

With such a large blasting project, it is really difficult to come up with a plan in three days.

Yang Yi said helplessly: "No way, the snow water upstream has begun to melt, and we only have less than a month at most." ”

After a pause, Yang Yi said again: "Among the students of Guangming Academy, Liu Wenzheng's son Liu Duan is very talented in the study of mechanics, and there is also a kid named Cao He, who is the eldest son of Cao Zheng, the governor of Mianzhou, and is also very skilled in the control of gunpowder. In short, if you want money, I will give you money, if you want people, I will give you people, in any case, you must customize a feasible plan in the fastest time, can it work? ”

Zhou Gongyi hesitated for a moment, and finally gritted his teeth and said, "Okay!" ”

Yang Yi nodded, then turned to Wen Jihuai and said, "Brother Jihuai, while Lao Zhou is making the plan, you must also start operating at the same time, clean up the Neijiang River, and all the equipment needed is in place." I will send another 5,000 Chengzhou troops to use for you, and once the blasting is successful, I must open up Neijiang in the shortest possible time. ”

Wen Jihuai nodded solemnly and said: "Don't worry, as long as the mountain is blown up, it will be my old life Wen Jihuai, and I will definitely complete the Yuzui Bay project before the arrival of summer water!" ”

Yang Yi waved his hand: "Don't say anything desperate, life is the most precious." Although we are in a race against time this time, it is important to remember that the first thing to ensure is the safety of everyone's life. ”

Zhou Gongyi and Wen Jihuai bowed together: "The subordinates know." ”

Yang Yi nodded, and sat on the chair a little tired and gently rubbed his temples.

Wen Jihuai said worriedly: "Your Highness, here is me and Lord Zhou watching, you can go back to the house to rest." ”

Yang Yi waved his hand and said, "Let's grit our teeth, we have worked hard in the past few days to benefit tens of millions of people in Shu..."

Wen Jihuai and Zhou Gongyi still wanted to persuade again, but Yang Yi fought and said: "Let's go to Neijiangkou to see the progress of the survey, I'm still a little worried." ”

Wen Jihuai and Zhou Gongyi couldn't, so they had to follow Yang Yi to Neijiang.