In the afternoon, on the bank of the canal, outside the Huanshui City, a discussion was in full swing. Yuwen Wen sat on Hu's bed, looking at a map in his hand, and listening to the disagreements of the officials in front of him, he felt his head swelling.

This is a on-site meeting of the Yongji Canal Project. The officials involved in the excavation of the Yongji Canal and the experts in water control were reporting to the emperor about the progress of the project and some problems found since the beginning of the project.

As Yuwen listened, he felt like a poor student attending an academic seminar. He listened to the top students talking about him but couldn't understand it.

His knowledge and knowledge are not comparable to those of people of this era, but he has specialized in his profession. Yuwen Wen is not a professional water conservancy. Although he has some experience in how to control water, he is not very proficient.

Now, Yongji Canal connects many rivers along the way, and is a water conservancy project that drives the whole body. He can't remember the large and small rivers, ponds and lakes mentioned by many people. He can only rely on looking at the map to keep up with the other party's ideas.

So he could only be confident and pretended to be thinking about whether the experts' suggestions were appropriate. As he listened, he felt like he had been deceived.

Today, Yuwen Wen convened everyone to hold an on-site meeting of Yongji Canal, mainly to hear everyone’s opinions on this project and see if there are any hidden dangers in the river section that has been opened after this period of operation.

In fact, Yuwen Wen didn't think there would be any hidden dangers. After all, before the project started, there were "water conservancy experts" on-site inspections and only after demonstrations were made. With such sufficient preparations, there would be no major problems in the canal that had not been fully navigated.

As a result, after the meeting was halfway through, after the experts' opinions were summarized, Yuwen Wen found that something was really wrong with Yongjiqu.

His first reaction was to get angry, and he almost blurted out: Em Angry!

But no matter how angry you are, you must first figure out what the nature of the problem is to get angry.

The problem is the common silt silt during water control.

According to officials, the silt rate of the river section at the starting point of Yongji Canal is very fast, much faster than the expected speed before construction begins. If this continues, before the full line of Yongji Canal is opened, the river channel at the front end of Yongji Canal will be dredged before it can be opened.

A major project has a big problem before it has been completed. Of course, Yu Wenwen was very annoyed. He tried his best to raise money and grain to build the canal, and did not ask for a high-quality project, but the project must be qualified at least.

Yuwen Wen felt that he looked stupid, so these experts dared to fool him in advance and trick him into starting the project. Then these "dog officials" turned the project into a "fishing project".

The so-called "fishing project" refers to the fact that the cost of a project is very low during the decision-making stage, but in the actual construction process, the construction party continues to add capital budgets, forcing the investor to continue to invest, and the final cost is much greater than the original planned projects.

A very big project was turned into a "fishing project". If Yu Wenwen hadn't had a good temper, he would have been chopped off on the spot.

He listened to the explanation patiently. After listening for a long time, he finally figured out where the problem of silt was.

In fact, it is not that complicated. It is the current "low" technological level that has caused relevant personnel to underestimate the severity of the canal silt problem.

This starts with the water source of Yongji Canal - Qinshui.

Qinshui originates from the Taihang Mountains, then flows to the southeast, and enters the Yellow River at the Wuzhi border.

The starting point of the Yongji Canal is in the Qinshui River section, not far from Qinkou, the mouth of Qinshui River, where Qinshui enters the Yellow River, about several miles away.

The site selection is first to facilitate ships to travel between the Yellow River and the Yongji Canal, and secondly to ensure that the Yongji Canal has abundant water sources with relatively small sand content.

Although the Yellow River water at this time has not reached the level of "one bowl of water, half a bowl of sand" in later generations, it has a large sand content after all, so Yongji Canal should use Qinshui as the water source to prevent the riverbed from silting too quickly.

The construction plan adopted now has taken a series of measures to ensure that the starting point of the Yongji Canal will not accumulate so quickly. Yu Wenwen attaches great importance to this issue. After the plan came out, he thought about it for a few days and felt that it was fine.

But the problem still arises, that is, the sand content of Qinshui is actually quite large.

Qinshui has a large flow during the rainy season and often produces heavy water. The river water whistles all the way, carrying a large amount of mud and sand to reach the downstream, enters the Yongji Canal, and then accumulates.

In addition, two streams of water collided at the mouth of Qinshui, forming a "reflow". The entrance of Yongji Canal is not far from the mouth of the river, so the return river water flowed into Yongji Canal with a large amount of mud and sand.

Over time, these mud and sand are enough to gradually silt in the river section at the front of the Yongji Canal.

In the section of the Yongji Canal that had been tried, the water control officials continued to observe and "sample" and found that the silt in the river channel was silting very quickly. Today, Zi happened to visit the canal, so everyone quickly reported it.

After roughly figuring out the cause and nature of the problem, Yu Wenwen was not so annoyed, but the problem must be solved.

He naturally didn't understand how to solve the problem, so he asked the officials present what good ideas they had.

The solution given by the officials is simple and rough, which is to directly "intercept" Qinshui and block it with a weir. In addition to flood discharge during the rainy season, Qinshui isolates it from the Yellow River and completely becomes the water source of the Yongji Canal.

At the junction of Qinshui and Yongji Canal, a multi-stage dike is set up to block the larger particles of sand and stone in the water, and then divide the left and right water canals and open them in turn so that the other side can be silted regularly.

If the flow of Qinshui water is not enough to maintain the water level of Yongji Canal, then use a steam pump to pump the Yellow River water to replenish it. The river water also passes through a multi-level dike, rolls the dam, and enters Yongji Canal.

A ship lock was also set up to allow ships to travel between Yongji Canal and the Yellow River.

Officials reported that there were already coal mines in Wuzhi and other places, and it was said that the veins were not small, so the steam pumps did not have any fuel. For such a solution, only a few more dams and locks were needed, and the cost was not too high.

Yuwen Wen listened and thought it made sense, but he was afraid of being fooled, so he carefully thought about the map and thought about it for a while and found that there was something wrong with this solution.

He turned his eyes to the expectant officials and asked, "Two hundred units? What are you planning to install so many steam pumps?"

One of the officials said excitedly after saluting: "Your Majesty! The Yongji Canal can not only be used as a canal, but also as a water channel. It uses a water pump to pump the water from the Yellow River and irrigate the canal areas along the canal. At that time, tens of millions of hectares of fertile land will be added to all parts of Hebei..."

Before the other party could finish his words, Yuwen Wen interrupted: "Then we need to promote water conservancy. We have to install steam pumps and set up a large amount of water pumping and irrigation stations in various places. Where did the imperial court get so much money and grain?"

"Your Majesty, I have carefully calculated that even if you use the existing canals and rivers, you can wait for a lot of water to be pumped from the Yongji Canal and then slowly set up necessary pumping and irrigation stations along the way, it will be enough to irrigate the farmland along the coast..."

"I've calculated carefully... you said that last time, but the result..." Yuwen Wen said, and he was actually a little moved.

Thanks to the Pingdingshan Coal Mine and the Yewan Canal, the Jingxiang area has obtained large and low-priced coal, so pumping and irrigation stations have begun to appear in various parts of Jingxiang to irrigate a large amount of farmland.

The development of Hanjin University was able to proceed smoothly because of the sufficient supply of coal, so steam pumps were used in large quantities.

This situation is no secret now, so the steam pump has been used as a water control tool by officials, but the premise is that the coal supply in the use area is sufficient.

Yuwen Wen had considered promoting steam pumps in Hebei. The problem is that this thing consumes a lot of coal. If it is not close to the coal production area, or if it can obtain a large amount of cheap coal, the use cost of steam pumps will be very high and cannot be promoted at all.

Only when there are large coal mines and can they be mined on a large scale can steam pumps be promoted in surrounding areas. Otherwise, they will lose money and lose everything. Yuwen Wen dare not do anything casually.

There are not many large coal mines in Hebei, especially in the Yongji Canal coast...

As he thought about it, Yuwen Wen became annoyed again, thinking that these people were lying to him to "additional investment". What about Yongji Water Conveyor Canal? It will definitely be another fishing project later.

If he really wants to agree, he has to invest money and grain to build a pumping and irrigation station. As a result, he was fished and he was unable to continue and all the investment was wasted.

"You bastards, you are thinking about my inner treasury all day long, and you always want to do fishing projects to cheat money!"

‘Do you want to stay in a sea view room at the end of the world?’
Chapter completed!