please make me king

Chapter 1068 Solutions
Zhang Shun's ability to come up with a theoretical basis does not mean that the problem can be solved immediately, but Zhang Jinyan, the magistrate of Sanyuan County, is still very excited.

Because in the past, the "Yinjing" faction was always at a disadvantage in arguing with the "Rejecting Jing" faction.

The "Rejecting Jing" faction represented the interests of Jingyang County, so the introduction of springs into the canal would not have a great impact on Jingyang, and it was easy to implement.

But for Sanyuan, Gaoling and Lintong in the lower reaches of Jingyang, it is nothing less than a catastrophe. The good canal water is gone, and the originally good fertile fields may have to be turned into middle fields, or even lower fields. This makes Zhang Jinyan as the representative " How to accept the Yinjing faction?

Others don't know, how can Zhang Jinyan not know?How difficult it is to dig mountains and divert water from the "Diao'erzui".

Therefore, unlike others, although Zhang Jinyan also advocated "Yinjing", he actually didn't have high expectations for opening Diao'er's mouth.

The "Yinjing" faction has no practical plan other than advocating the digging of Diao'erzui. How can they not fall into a disadvantage?
However, when Zhang Shun put forward the idea of ​​"sinking the sand and cutting it, and washing and silting it into balance", things began to develop in a favorable direction for the "Yinjing" faction.

Because it fundamentally solves the problem of constantly digging new aqueducts once and for all, and completely blocks the "fallacy" of "rejecting Jingjing and diverting springs" to send labor without success, and the gains outweigh the losses.

In fact, if you think about it carefully, the amount of engineering needed to widen the river in the valley may not be much smaller than digging through the Diaoerzui.

However, widening the river surface and achieving a balance between erosion and siltation is more feasible than digging open the mouth of the mouth, so Zhang Jinyan couldn't help being very excited.

Originally, the best place to implement Zhang Shun's "sand sinking and cutting, balancing erosion and silting" happened to be the head of Zhengguo Canal.

Here, the Jingshui has just come out of the valley, and the goal of widening the river can be achieved by excavating the soil on both sides of the river, which is the most simple and easy.

However, the river level at the head of the Zhengguo Canal is too high, and the actual conditions for implementation are no longer available.

If it is the next best thing to go to the mouth of Guanghui Canal, it will be necessary to excavate river rocks on both sides, and the amount of work is quite huge.

"Is it necessary to dig out the river rocks on both sides?" On the way back, Zhang Jinyan couldn't help asking after mumbling for a while.

"When did I say that I have to dig out the river stone?" Zhang Shun shook his head when he heard the words, "I'm just offering a way of thinking."

"After all, the king has a lot of things to do every day, and it is really impossible to go up and down the river to investigate and measure."

"We only need two points, one is to slow down the water flow, and the other is to raise the river level and introduce it into Guanghui Canal."

"If there are other places where these two goals can be achieved, then of course that's fine."

"If it really doesn't work, I have a non-solution. I wonder if you want to hear it?"

"Oh? Your Highness King Qin, please tell me!" After this incident, Zhang Jinyan, the magistrate of Sanyuan County, obviously respected Zhang Shun a lot.

"The top priority is to take a two-pronged approach. One is to widen the head of the Guanghui Canal, and the other is to set up cofferdams downstream of the water intake at the head of the Guanghui Canal to collect the water and carry the river!" Zhang Shun couldn't help suggesting.

"In the end, we can dig river rocks on both banks and accumulate them as cofferdams, killing two birds with one stone, without any effort!"

"Furthermore, the river sand will be self-silting. If the water is high, the cofferdam will be reduced, and if the water is low, the cofferdam will be increased. In this way, one increase and one decrease, so that the river level will remain the same."

What does that mean?

Zhang Shun suggested that it is better to simply widen the river surface at the water intake of Guanghui Canal, and then pile up cofferdams downstream of the water intake without transporting the excavated stones.

The cofferdam narrows the river channel downstream of the water intake, which naturally raises the water level upstream of the cofferdam, forming a wide river surface similar to a reservoir.

In this way, because the water flow slows down in this reservoir-like position, the river sand will deposit here by itself.

The siltation of the river sand will raise the river bed by itself, and then raise the river surface of the Jing River here, just in time to introduce the sinking Jing River water into the Guanghui Canal.

It's just that if the river bed keeps rising over time, it is likely that the dams on both sides of the river will be washed away.

At this time, it is necessary to widen the estuary restricted by the cofferdam to allow the water to wash down the silted river sand.

In this way, if there is more river sand, the gap in the cofferdam should be opened wider, and if there is less river sand, the gap in the cofferdam should be narrowed, and finally a dynamic balance will be formed. There is no need to adjust the cofferdam, and the "reservoir" of the Jing River can be filled here Form erosion-silt balance.

"Wonderful, wonderful!" Zhang Jinyan couldn't help clapping his hands when he heard the words, "Since then, isn't this just like a water bottle?"

"The mouth of the bottle is bounded by the cofferdam, and the widened river is the belly of the bottle. If there is less sand, the mouth of the bottle will be closed, and if there is more sand, the mouth of the bottle will be expanded. In this way, the water and sand can be controlled!"

"In just a few years, the erosion and silt balance, without laboring the people of the five counties, is really wonderful!"

Just talking, Zhang Jinyan's voice couldn't help but lowered.

"No, no!" He couldn't help frowning and said, "His Royal Highness the King of Qin doesn't know that this Jing River has two periods of dry water and flood water."

"Now it's the rainy season, so the river surges; when it's dry season, the river plummets. How can the water level of the river be controlled when it rises and falls?"

"This..." Zhang Shun couldn't help being taken aback when he heard the words, only then did he realize that there was something wrong with the model he had designed for "balance of erosion and siltation".

I know that the problem of static rivers is considered, but the problem of dynamic rivers is not considered.

"Wait a minute, let me think about it carefully!" Zhang Shun waved his hand, and couldn't help frowning.

The amount of water in the rainy season is large, and the amount of water in the dry season is small, rising and falling.
Wait, one up and one down?
Got it!

Zhang Shun thought for a while, then couldn't help smiling and said: "This matter is easy, but the height of the cofferdam must be controlled!"

"These cofferdams don't need to be too high when they are piled up. When the water is dry, the water will naturally be collected. When the river surges, it will naturally overflow the cofferdams and flow as usual!"

Zhang Jinyan couldn't help being stunned when he heard the words, and after a while he said with emotion: "His Royal Highness Qin is really unconstrained and eclectic in doing things, which makes me amazed and ashamed."

"It is the blessing of the people of the five counties of Jingyang, Liquan, Sanyuan, Gaoling, and Lintong, the blessing of the people of Shaanxi, and the blessing of the people of the world!"

"Knowing that the master is like this, how dare Lian Yuan refuse to die?"

Lian Yuan?Zhang Shun was taken aback, and then realized that this should be Zhang Jinyan's words.

It turned out that although this guy had joined the rebel army and was reliable in his work, he finally complied with Wei Zheng's words, "In the end, he will be spared but not benevolent, respectful but disobedient."

It's just that after Zhang Shun's performance, that Zhang Jinyan was really convinced, "I will die for it".

"This method is just a suggestion of mine, and it still needs careful research!" Zhang Shun couldn't help being delighted when he heard the words, and then urged.

"Since Lian Yuan has the heart, I will entrust this matter to you."

"I also ask you to carefully investigate the situation along the Jinghe River and Guanghui Canal after completing your daily work, compile a book of all the problems and solutions that have arisen, and report to me together."

"Everything must be carefully researched to ensure that there is no mistake, and then the grain and silver will be allocated, and the people will be expropriated, so as to solve the irrigation of Guanghui Canal in one fell swoop. There must be no mistakes!"

"Thank you, sir!" Zhang Jinyan couldn't help getting off his horse when he heard the words, fell to the ground, and responded loudly.

(End of this chapter)