Zhang Shun was able to put forward a theoretical basis, which did not mean that the problem could be solved immediately, but Zhang Jinyan, the magistrate of Sanyuan, was still very excited.

Because in the past, the "induce Jing" faction was always at a disadvantage in refuting with the "reject Jing" faction.

The "Reminiscence" sect represents the interests of Jingyang County, so it leads springs into the canal, which has little impact on Jingyang and is easy to implement.

However, for the Sanyuan downstream of Jingyang, Gaoling drank Lintong, it was a catastrophe. The good canal water was gone, and the original good fertile land might have to be turned into Zhongtian or even down to the fields. How could the "Jing" faction represented by Zhang Jinyan accept it?

Others don’t know, but how can Zhang Jinyan not know? It’s so difficult to dig mountains and dig water from the “hurried mouth”.

So unlike others, although Zhang Jinyan also advocated "inspiring Jing", he actually did not have too high expectations for chiseling open his mouth.

Apart from promoting the opening of the chiseled mouth, the "Yinjing" faction has no practical solution. How can we not fall into a disadvantage?

However, when Zhang Shun proposed "sinking sand and cutting, slurrying and balancing", things developed in a favorable direction of "inducing Jing" faction.

Because it fundamentally solved the problem of constantly digging new water diversion channels once and for all, completely blocking the "fallacy" of "rejecting Jing and lureing springs" that the "fallacy" of "rejecting Jing and lureing springs" was ineffective and the gains were not worth the loss.

In fact, if you look at it carefully, expanding the river surface in the valley, the required engineering volume may not be much smaller than that of the chiseled penis.

However, from any perspective, it is more practical than chiseling a hanging mouth, so Zhang Jinyan couldn't help but be extremely excited.

The place where Zhang Shun's "sinking sand and silting and balancing" was the best place to implement Zhang Shun's "sinking sand and silting and balancing" was exactly the head of the Zheng State canal.

Here, Jingshui has just left the valley, and only by digging the soil on both sides of the river can we achieve the goal of widening the river surface, which is the simplest and easier to do.

However, the river surface at the high water diversion mouth of Zhengguo Canal is too high and there is no real condition for implementation.

If we want to settle for the second best and go to the entrance of Guanghui Canal, we need to dig the river stones on both sides, and the project volume is quite large.

"I have to dig open the river stones on both sides?" On the way back, Zhang Jinyan muttered for a while and couldn't help but ask.

"When did I say I had to dig a river stone?" Zhang Shun shook his head and said, "I just provide a way of thinking."

"After all, I am busy with all my life and I really can't investigate and measure up and down the river."

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

"If there is something else that can achieve these two goals, then it's natural."

"If it really doesn't work, I have a solution that is not a solution. I wonder if you want to listen?"

"Oh? Your Highness, please tell me!" After this incident, the Sanyuan magistrate Zhang Jinyan obviously respected Zhang Shun much more.

"The top priority is to take two steps. One is to broaden the first location of Guanghui Canal, and the other is to set up a cofferdam downstream of the first entrance of Guanghui Canal to connect the water to carry the river!" Zhang Shun couldn't help but suggest.

"In the end, we can dig the river stones on both sides of the river and form a cofferdam, killing two birds with one stone, without any effort!"

"Then the river sand will silt on its own. If the water is high, the cofferdam will be reduced. If the water is low, the cofferdam will be increased. This will increase and decrease, so that the river surface will be as high as usual."

What does it mean?

Zhang Shun suggested that it would be better to broaden the river surface at the water diversion outlet of Guanghui Canal, and then the stones chiseled out do not need to be transported out, and a cofferdam is accumulated downstream of the water diversion outlet.

If the cofferdam narrows the river channel downstream of the water diversion mouth, it will naturally raise the water level upstream of the cofferdam to form a wide river surface similar to a reservoir.

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

The silt of river sand will raise the riverbed by itself, and then raise the river surface of the Jing River here, which can just bring the originally sinking Jing River water into the Guanghui Canal.

However, if the riverbed continues to rise over time, it is likely to damage the embankments on both sides of the shore.

At this time, it is necessary to broaden the estuary bound by the cofferdam and let the water flow rinse the silted river sand.

In this way, if there is more river sand, the cofferdam gap will be wider. If there is less river sand, the cofferdam gap will be smaller, and eventually a dynamic balance will be formed. There is no need to adjust the cofferdam. The Jinghe River can form a sludge balance by "reservoir" here.

"How wonderful, so wonderful!" Zhang Jinyan couldn't help but hold his hands up and said, "Since this is like a water bottle?"

"The cofferdam is the mouth of the bottle, and the widened river channel is the belly of the bottle. If there is less sand, the bottle mouth will be tied, and if there is more sand, the bottle mouth will be expanded. So the water and sand can be controlled!"

"It's amazing to have a few years of stagnation and balance, without expending the people of the five counties!"

As he was just talking, Zhang Jinyan's voice couldn't help but lower his voice.

"No, no!" He couldn't help but frown and said, "Your Highness the King of Qin doesn't know that the Jing River has dry water, and the second phase of the rising water."

"It's rainy season now, so the rivers soar; when the dry season comes, the rivers plummet. How can the rivers water level be controlled when it rises and falls?"

"This..." Zhang Shun was stunned when he heard this, and then he realized that there was something wrong with the "silt and stasis balance" model he designed.

I know that I have considered the static river problem, but not the dynamic river problem.

"You wait a moment, wait until I think about it carefully!" Zhang Shun waved his hand and frowned.

The water volume in the rainy season is large, the water volume in the dry season is small, and it rises and falls...

Wait, one rise and one fall?

Have it!

Zhang Shun thought for a while and couldn't help but smile: "This matter is easy, but you need to control the height of the cofferdam!"

"These cofferdams do not need to be too high when they accumulate. When the water is dry, they will naturally harbor water. When the river surges, it will naturally overflow the cofferdam and flow as usual!"

Zhang Jinyan was stunned when he heard this, and after a while he sighed: "Your Highness of Qin is so arrogant and unconventional. It makes me amazed and I feel ashamed of myself."

"With this happening to the King of Qin, it is the blessing of the people of the five counties of Jingyang, Liquan, Sanyuan, Gaoling and Lintong. It is also the blessing of the people of Shaanxi, and it is also the blessing of the people of the world!"

"With this wise ruler, why dare Lianyuan not die without following him?"

Lianyuan and Zhang Shun were stunned and realized that this should be Zhang Jinyan's name.

It turns out that although this guy defected to the rebel army and was reliable in his work, he finally responded to Wei Zheng's words, "I will never be able to be kind, and I am respectful but not convinced."

But after Zhang Shun's performance, Zhang Jinyan was really convinced and "happy to die."

"This method is just one of my suggestions. After all, it still needs to be carefully verified!" Zhang Shun couldn't help but feel happy when he heard this, and then reminded him again.

"Since Lianyuan is interested, this matter will be handed over to you."

"Please carefully investigate the situation along the Jinghe River and Guanghui Canal while completing your daily work, compile all the problems and solutions that arise into a book and report them to me."

"Everything is carefully examined and there is no mistake. Then allocate grain and silver to collect the people, and solve the problem of irrigation in Guanghui Canal in one fell swoop, and there must be no mistakes!"
Chapter completed!