s: Please vote for a 6000-word chapter January 15, 1928, the 27th year of the Republic of China, Presidential Palace, Hanking.
"Mr.
Wen, the Yellow River management project is nearing completion, and everything is going well so far.
There is still some finishing work left, which will be completed in March.
According to our calculations, if the vegetation on the Loess Plateau continues to be maintained, the new river channel will be very stable, at least There will be no problem in 200 years," Zhang Lizheng said with a smile.
"Our Yellow River Project lasted for sixteen years, with a total labor force of 13.5 million people, involving nine provinces, and the cash and materials used equivalent to 230 billion yuan.
Both manpower and cost are the largest in history. .
But the investment is definitely worth it.”
"Sixteen years, sixteen years, we finally managed to deal with the Yellow River."
Wen Desi raised his hand to his forehead and sighed: "This Yellow River is really difficult to deal with.
No wonder all dynasties have regarded controlling the Yellow River as a top priority. , fortunately with modern science, otherwise we wouldn’t be able to do anything about it.”
Li Yizhi, deputy minister of the Ministry of Water Resources, said with admiration: "Mr.
Wen, you are right.
Without modern scientific and technological achievements, we cannot complete such a huge project.
But the most important thing is to have a strong country and a strong government.
"Only New China under your leadership can complete such a super project."
He said it very sincerely, without any intentional flattery.
In the history of the original time and space, Li Yizhi was a famous hydraulic scientist and educator, a pioneer in my country's modern water conservancy construction, and a great master.
Among the experts on water conservancy in China in the future, he had the most disciples and disciples, and he could be called a master.
A super figure at the level of a demon king.
His fate has also changed a lot in this plane.
Of course Mr.
Wen would not let such a formidable figure go.
In July 1906, he sent someone to "cut off his beard".
At that time, classmate Li Yizhi was still studying in the German class of the preparatory course of Beijing Capital University.
After he was recruited by Mr.
Wen, he became the first batch of international students in the Xingke Study Abroad Program.
As in the original time and space, the place where he went to study abroad was the Royal Engineering University in Berlin, Germany.
After graduating in 1911 and returning to China, he continued to study in the Water Conservancy Department of Huazhong University of Engineering and participated in the demonstration and design of water conservancy projects.
In 1915, he received a doctorate and entered the Ministry of Water Resources.
He is one of the main persons in charge of the Yellow River management project in New China.
Now Li Yizhi is so excited that he wants to cry.
Being able to preside over such a huge super-giant project and successfully complete it, especially since "thorough management of the Yellow River" has been his biggest dream since childhood, and if it can be realized in his lifetime, he feels that this life has been worth it.
When Li Yizhi and a group of colleagues were getting excited, the door of the conference room was gently pushed open.
"Daddy, daddy."
A two- or three-year-old little loli stretched out her head and meowed a few times in a milky voice.
The loli looks very cute and wears a black gothic lolita outfit.
Seeing this loli, everyone suddenly laughed.
The little Loli looked around, and when she saw Wen Desi, she showed a sweet smile: "Dad, give me a hug" and ran in staggeringly.
"My little darling, daddy is here to give me a hug."
Wen Desi picked up his daughter and kissed her little cheek.
Little Loli and Wen Desi were intimate for a while, then saw Gu Xiaolu next to her, and stretched out her hand and shouted: "Auntie, give me a hug."
"Xiao Xinxin, you're so good."
Gu Xiaolu also smiled and took it and kissed her.
Although she did not give birth to this loli, she also likes it very much.
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The two children she gave birth to are both shota, and she especially wants a daughter.
Zhang Lizheng took a piece of chocolate from the table, walked over and said with a smile: "Xiao Xinxin, call me uncle."
"Piggy" the little Loli yelled inarticulately.
Everyone laughed.
"Mr.
Wen, Xiao Xiner was looking for you everywhere just now, and she wanted you to see her new clothes."
Gu Xiaoqing also followed in.
Although Wen Desi is the husband, during working hours, the wives still call him Mr.
Wen.
Mr.
Wen now has a total of fifteen children, seven sons and eight daughters.
The eldest son, Wen Zebin, is 11 years old and is about to graduate from elementary school.
This loli's name is Wen Zexin.
She is the youngest child, and of course the most favored.
At this time, another graceful beauty walked in.
It was Jin Lin, a beautiful and famous doctor in the medical field.
After having an affair with Wen Desi for several years, she finally came to fruition and officially became a member of Mr.
Wen's harem in 1920.
She gave birth to Wen Zexin Loli.
Jin Lin is also the only true girl in Mr.
Wen's harem.
Jin Lin is 38 years old this year, but time seems to have left no trace on her face.
She still looks like a delicate girl in her twenties, even more beautiful than before she got married.
Well, in fact, the same is true for the other girls of Mr.
Wen.
They all seem to be in their early twenties.
This kind of thing is too easy for the medical level and maintenance technology of the 23rd century.
After greeting Wen Desi and several sisters, Jin Lin apologized to everyone in the conference room: "I'm really sorry, I missed Xinxin just now and disturbed you."
"It's nothing, it's nothing, kids are just like this."
Everyone quickly said it didn't matter, and it didn't affect us at all.
"Mom, mom."
As soon as the little Loli saw Jin Lin, she ran over.
"Uh, Xinxin, dad has to work now, let's go back first and wait until dad gets off work to see your new clothes."
Jin Lin coaxed a few words, stabilized the little loli, and went out with Gu Xiaoqing.
"Ahem, OK, okay, it was just an accident, now let's continue."
Wen Desi didn't blame the guards at the door.
His little loli came running to find his father, and the guards at the door couldn't stop him.
January 30, Kaifeng, Yellow River.
The Yellow River is the source of Chinese civilization and the mother river of China.
However, while this river has nourished the Chinese people, it has also brought great troubles and many disasters to the Chinese people.
The Yellow River is a very violent river.
For a long time, the Yellow River has been like an invader, ravaging almost all the rivers in the North China Plain from the Haihe River in the north to the Huaihe River in the south.
Once the Yellow River bursts and overflows, it will snatch the channels of these unlucky people and forcibly change its course.
When the Yellow River overflows, floods carrying a large amount of sediment will flow into the channels of these rivers and silt up their channels.
This is how many large rivers are first turned into small rivers, and finally Until it disappears.
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In the more than 2,600 years since the fifth year of King Zhou Ding's official record, the lower reaches of the Yellow River have experienced a great cycle of swings from north to south, and from south to north again.
There are countless breaches and diversions.
Generally speaking, with Mengjin as the apex, a large delta that reaches Tianjin in the north and the Huaihe River in the south is the scope of the Yellow River's diversion and migration.
Along with the ravages of surrounding rivers, the Yellow River has brought countless floods to people on both sides.
Since the Tang Dynasty, there has been a major embankment breach almost every three years, and other small-scale embankment breaches have occurred almost every year.
The hanging river in the middle and lower reaches threatens the people on both sides of the river almost all the time.
According to archaeological excavations, there are six or seven floors of Luoyang old city ruins from various periods under Luoyang City.
Luoyang is growing almost at the same time as the Yellow River. .
Since the middle of the Qing Dynasty, breaches in the lower reaches of the Yellow River have become increasingly frequent.
According to statistics, in the nearly 200 years from the early Qing Dynasty to the Opium War, the Yellow River breached 361 times, with an average of about once every six months.
Compared with the average of about once every seven months in the Ming Dynasty, it can be said that overall the situation is getting worse.
For a period of time in the original time and space, there was a similar rumor that the reason why the Yellow River often changed its course was due to unreasonable economic activities such as deforestation.
But this statement is not correct, at least not completely.
Unreasonable economic activities do have a certain impact, but the most fundamental reason is the Loess Plateau itself.
The Yellow River has a high sediment content since ancient times.
Because almost the entire North China Plain is alluvial from the Yellow River.
Of course, river systems such as the Haihe River and the Luanhe River also make some contributions, but they are far behind the Yellow River.
When the North China Plain was formed, not even humans, not even monkeys, appeared.
In other words, even if we completely follow the laws of nature, even if all humans are driven out of the Loess Plateau, the problem of the Yellow River bursting and diversion cannot be completely solved.
The only way is to take a multi-pronged approach: start from the lower reaches to create artificial new river channels, and the Loess Plateau area A large number of check dams were built and farmland was converted into forests and grasslands, thus comprehensively changing the agricultural structure.
For thousands of years, the Chinese have been contending with the Yellow River, but it was not until the beginning of the 23rd century that this problem was completely solved.
This is not to say that the technology of the previous 200 years cannot solve it, nor that it is impossible to think of how to do it.
In fact, similar plans have been around for a long time, but the cost is too high and the social impact is too great, so successive governments have been unable to make this determination.
So I kept making do with it until I couldn't deal with it anymore, and then I made up my mind to deal with it thoroughly.
But Mr.
Wen doesn't have the patience to wait hundreds of years to resolve this matter, and the earlier the better, the sooner it will have less social impact, and the sooner it will involve fewer things.
Therefore, the Science and Socialist Party regime led by him has been working on it from a very early stage.
Although the Yellow River management project in New China officially started in February 1912, the related preparatory work did not begin until Wen Desi crossed over.
How long did it take to start doing it.
In October 1906, Wen Desi sent an unmanned exploration aircraft to fly several times along the Yellow River and the old river channels of the Ming and Qing Dynasties, and obtained a lot of relevant data.
The next year, a group of biochemical scientists and engineering technicians were sent to conduct on-site inspections.
After obtaining a large amount of actual data, they re-planned based on various plans for later generations.
They used an indoor simulation test method to create a miniature model of the middle and lower reaches of the Yellow River according to a certain scale.
By adjusting the simulated Yellow River flow, they studied and determined the optimal proportions of relevant factors such as river channel depth, river channel width, and river bed capacity. relationship, and understand the rules of sediment transportation and reduction of sediment deposition, which can be used as the basis for engineering design.
Subsequently, modeling and digital simulation were carried out by the quantum computer "Xiao Feifei", and the best management plan for this plane was determined in March 1908, and the national construction planning plan was adjusted for this purpose.
Then, during the "village merging" after liberation, these people took the opportunity to avoid the existing river channels of the Yellow River and the old river channels of the Ming and Qing Dynasties.
All new villages were avoided within three kilometers of both sides of the river.
In the subsequent construction plan, no populated areas such as towns and factories shall be established within 5 kilometers on both sides of this reserved river.
This avoids future problems such as demolition and immigration.
This is the biggest advantage of time travellers.
They know how to avoid some traps, know the lessons of history, and know how to make long-term plans.
In August 1909, a large number of reform-through-labor prisoners and reeducation-through-labor personnel were transported to Shanxi, Shaanxi, and the greening project on the Loess Plateau officially began.
In February 1912, the "village merging" and urban population relocation around the river were completed, the construction of roads for transporting construction materials and equipment was completed, and all kinds of work were ready.
The Yellow River management project in this dimension officially began.
At this time, a large group of people were filming a program on the embankment on the north bank of the Yellow River.
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"Hello viewers, this is a special program on the Yellow River in the future.
I am CCTV reporter Pu Runing, and I am on the Yellow River embankment in Kaifeng."
Reporter Pu Runing, who is full of the temperament of a royal sister, talked in front of the camera.
"Viewers, the one on my left is the existing river channel of the Yellow River, and the one on my right is the new river channel.
As you can see, the new river channel is much narrower than the existing river channel."
The camera followed Pruning's introduction, first left and then The one on the right switches to the scene of the river on both sides.
Pu Meizi took out a piece of paper and looked at it: "Well, I have some data here.
The current riverbed in the Kaifeng section of the Yellow River is about 12 kilometers wide at its widest and about four kilometers at its narrowest.
The riverbed in Henan is generally about 10 kilometers wide.
Kilometers, with a maximum width of 20 kilometers, and the distribution is extremely irregular.
Due to artificial construction, the width of the river bed is very regular, generally only 500 meters to 1,000 meters, and the widest is less than three kilometers."
"So why don't we carry out treatment on the original river channel, but dig a new river channel?
What are the considerations?
We asked Dr.
Li Yizhi, a famous water conservancy expert, deputy minister of my country's Ministry of Water Resources and chairman of the Yellow River Engineering Committee, to answer our question."
Puruning He turned the microphone to Li Yizhi beside him.
Li Yizhi nodded and said: "The accumulation landform formed by the transportation of sediment by the Yellow River is the fundamental cause of the breach, so regulating the Yellow River means controlling sediment.
This is divided into two parts.
One part is to reduce the flow of sediment from the Loess Plateau in the middle reaches into the Yellow River. , this can be done by using the yellow The other part is to increase the river water power in the lower reaches of the Yellow River so that it can carry away the sediment and prevent it from accumulating in the river.
The first part is not my responsibility. , I will focus on the second part.”
"Because the existing river channel is too wide, its flow speed is very slow and the water power of the river is insufficient.
Therefore, we need to tighten the river channel and increase the water power.
Due to years of sediment accumulation, an above-ground river has been formed in the lower reaches of the Yellow River.
This is A hanging river is very dangerous, such as here in Kaifeng, the river bed of the Kaifeng section of the Yellow River.
The bottom of the river bed is 78 meters above the ground level of Kaifeng City, and the highest point is more than 10 meters.
Seven cities from the Han and Tang Dynasties have been buried underground in Kaifeng City.
The Daliang City of Wei Dynasty is now more than 10 meters deep under the ground. ; Bianzhou City in the Tang Dynasty was about 10 meters deep from the ground, and Tokyo City in the Northern Song Dynasty was about 8 meters deep from the ground. , about 6 meters deep in Bianjing City in Jin Dynasty and 5 meters deep in Kaifeng City in Ming Dynasty.
For thousands of years, the Yellow River floods have caused dike breaks or diversions, which have always been a threat to the survival and security of the Yellow River. difficult problem, the best way is to find an economical, scientific and skillful way to make this hanging river no longer Therefore, if we modify the existing river channel to make the suspended river no longer suspended, it will cost too much, and the construction will be more difficult and costly.
This is very uneconomical, so it is best.
The solution is to dig a new river channel," Li Yizhi said to the camera.
"Vice Minister Li, may I ask why we chose the north side of the existing river instead of the south side?"
Pruning asked again.
"Oh, this is because the landform characteristics of the lower reaches of the Yellow River are that the terrain outside the north bank of the Yellow River is generally lower than that outside the south bank, so it is more ideal to choose a new river channel on the north bank.
The new river bed of the Yellow River formed between the new embankment and the original north bank embankment does not need to be The excavation was lowered by an average of 7 to 10 meters than the original river channel, saving a lot of engineering work.
After our construction, the bottom of the new river channel was five to ten meters lower than the ground level on both sides, thousands of miles away.
The Xuanhe River is thus saved from danger.
The new river bed is lower than the ground, and the strategy of wide and deep river channels is basically not left, which is conducive to further downcutting and channeling of the river.
Even if the sedimentation situation of the Yellow River may gradually reverse in the future, at least the use of the new river bed can be guaranteed.
It has been uneventful for more than a hundred years.
In addition, in order to save engineering work and reduce costs, we made full use of the original north bank embankment as the south bank embankment of the new river channel."
"Deputy Minister Li, we can see that the new river channel is very straight, with very few turning places, and the river section is an obvious trapezoid.
In addition, the inner sides of the embankments on both sides are made of reinforced concrete.
Why do we do this?"
"Well, cutting bends and straightening them is an important measure to increase hydrodynamics.
The original river channel had too many bends, which caused the flow speed to be greatly reduced.
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Therefore, the new river channel mainly adopts straight lines, even in places where turns are necessary.
Large-diameter curves minimize the factors that reduce flow velocity.
The river cross section is not a trapezoid, it is actually a triangle.
The plane at the bottom is now going down.
The current new river channel is a reinforced concrete channelized river channel, which can enhance the strength of the river banks on both sides and prevent floods from rushing left and right to damage the river banks.
The purpose of artificially constructing a triangular river channel section is to standardize and straighten the river channel.
The power of the river stirs up the sediment, washes the sediment into the sea, and maintains the long-term trend of washing the river.
These designs are all for this purpose."
"Vice Minister Li, according to the Yellow River Management Plan, the new Yellow River channel will start from Tongwaxiang, and most of it will be built according to the orientation of the old channel in the Ming and Qing Dynasties, that is, it will enter the sea from northern Jiangsu.
What are the considerations for this?
Also, the economics What to do with the existing river channel from Shandong to the Bohai Sea?"
"The existing river channel that passes through Shandong and enters the Bohai Sea will not be useless.
After it is transformed, it will become an important channel for the South-to-North Water Diversion.
As for why it was changed to the old route of the Ming and Qing Dynasties, the reason is very simple.
This is to protect the Bohai Sea and increase the land area.
The Yellow River The massive accumulation of sediment has caused the Bohai Sea to become smaller and smaller, and may even eventually disappear.
It is dangerous.
After the Yellow River is diverted into the Yellow Sea, about 80 square kilometers of new territory can be created a year.
The Bohai Sea is an inland sea.
According to international law, it is equivalent to our own territory.
However, the Yellow Sea is different.
You can create as much land as you want.
How much territory and maritime exclusive economic zone can be pushed forward accordingly?"
Li Yizhi said with a smile.
There is no need to keep this kind of thing a secret, there is no harm in talking about it openly.
Scientists from the great powers are not fools.
Who doesn’t know how the impact of the plains came about?
But this kind of thing is not easy to learn.
Even if other countries want to imitate China’s land reclamation, they have to find a Yellow River first, otherwise they can only If you follow the example of the Dutch and rely on manual movement of soil to fill the sea, the cost will be huge.
"Thank you very much, Vice Minister Li, for your introduction."
After finishing the on-site interview, Puruning boarded the CCTV airship and started aerial photography along the new river, taking pictures of the entire new river.
The new river channel is roughly divided into two ends.
The western section starts from Taohuayu and ends at Tongwaxiang.
The new river channel is built on the north bank of the Yellow River.
The eastern section from Tongwaxiang to the mouth of the abandoned Yellow River in Jiangsu is mainly re-excavated and renovated based on the old Yellow River course.
Of course, this new river course does not exactly follow the route of the old Yellow River course.
It also adopts the same approach as the western section.
Strategies include cutting corners to straighten them, tightening and deepening river channels, and concrete channelization, etc.
In addition, the new river channel also bypasses Xuzhou and surrounding counties, and bypasses important lakes such as Luoma Lake and Hongze Lake.
In the section that crosses the Grand Canal and Xinyi River, a huge water interchange hub system has been built to prevent Yellow River sediment from entering the Grand Canal and other rivers, and to make these rivers navigable with the Yellow River.
According to the plan, after the Yellow River enters the new river channel, the existing "hanging river" bed that is higher than the ground will also be used.
It will be bulldozed and compacted to serve as the roadbed for future highways.
This will not only provide a convenient transportation artery for Henan and Shandong, promote the development of local economy, but also play a role in reinforcing the embankment on the south bank of the new river channel.
Another advantage of digging a new river channel is that it can fully meet the traffic needs of the north and south sides.
Traffic culverts across the bottom of the Yellow River can be constructed in advance under the future river bed in the open air.
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Now where the new river channel passes, dozens of river bottom tunnels connecting both sides of the river have basically been completed.
Open-pit excavation and then backfilling is much less troublesome than building bridges or digging under existing river channels.
And although this project is almost completed, the management of the Yellow River is also a long-term task.
In the future, with the completion of the South-to-North Water Diversion and North-to-South Water Diversion projects, the flow of the Yellow River will increase significantly.
In the future, many reservoirs will be built on the Yellow River.
In the future, these reservoirs and The new river channel will also face the problem of sedimentation, and dredging will also be a long-term task that will be carried out every year in the future.
The silt from the dredging will not be wasted.
The silt from the dredging will first be accumulated in the soil field to dry naturally.
When it is half dry, it is transported by train to the northwest desert area to bury the sand to create fields.
This not only solves the problem of sludge treatment, but also accelerates the transformation of desert areas.
This method is not limited to the Yellow River, but will also be used in the southern region.
The silt dredged from lakes and rivers will be dried and sent to areas that need soil, such as the Yunnan-Guizhou Plateau and other places with thin soil layers.
"This is really a super project, involving many factors in all aspects.
It is a very complex comprehensive project that was simply unimaginable in the past and is unique in the world today.
Such a great project can only be achieved by a great country.
Only then can it be completed," Prunin said proudly to the camera. s: It’s the middle of the month, please vote, recommend, subscribe, and all kinds of things: