A new day begins, and new work must continue. The experience of the predecessors is worth learning. I re-checked the excavated road and observed the movement of the water to ensure that there was no strong wind today and the flow of the river was slow. Some.
After confirming that it was correct, Yu Zai hung up the horn and stretched out his hand. Someone nearby poured water from a clay pot.
"What is this for?"
"It's a ribbon-cutting... To seek good luck, life must have a sense of ritual."
Ruan Zai washed her hands, combed her hair, and shook hands cordially with the workers' representatives around her. Then she came over with a plain "big flag" and wiped it. Then she took out the scissors. Someone had already opened a torn strip beside her. cloth.
It's really just a piece of rag. There's no way, the red cloth can't appear here. After all, there are no dyehouse workers, and the emperor doesn't allow such extravagant things. Just cut the rag and the ceremony will be in place.
Scissors have been widely circulated since Yijun made them.
After cutting the ribbon, Nuzai blew the horn, and next to him, Wen Ming picked up the large plain flag that Nuzai had used to wipe his hands with a bamboo pole.
It is said to be a flag, but it is actually just linen cloth used to cover the oxcart.
After the bamboo pole was lifted, someone lifted the bamboo pole at intervals from behind. At the very back, the people standing on the earth-rock dam that blocked the water saw the bamboo pole being lifted and nodded to each other. All people standing on the earth-rock dam were required to wrap thick hemp ropes around their waists to prevent them from being swept away by the current of the river and dying when the dam burst.
There is also a rope in the middle, which is blocked in the current and spans both banks. This hemp rope is unusually thick.
The great rivers of this era had extremely high water levels, extremely fast flow, fierce and violent conditions.
As those shovels and sledgehammers fell, it took a while before the first stream of water broke through the earth-rock dam.
But this is not enough, because to allow the river to flow normally rather than just break through a gap, the earth-rock dam will be destroyed.
"There is no need to worry that the ruins of this earth-rock dam will hinder the flow of the river, because when we were building the 'Renmen', we had already reinforced the river channels on both sides. The geographical environment of Dizhu Mountain and Wuhetan is already very solid. We Relying on bronze tools, some iron tools, and a large number of stone tools, it took half a year of work to dig out the ghost and human gates. It took the river a million years to break out a divine gate."
"So, in a few years, when a big flood comes, the water flow in the Divine Gate and the Ghost Gate will become huge, and because these two gates rely on the main pillar mountain to exist, they are particularly strong and will not be destroyed by the flood. Impulsively, we reinforced the riverbanks and tidal flats at Renmen, built diagonal fortifications, and cleared the new river channel below..."
"The ruins of that earth-rock dam will disappear within a month after the big flood arrives."
Ruanzai said this to Wen Ming and the others, and Taiyi nodded: "What a magical method... But I know that this method cannot be used together with diversion."
Wen Ming was immediately confused. Why wasn't this used together with the diversion method?
The ghost door means that you have been insulted!
But Yuan Zai said to Tai Ni: "The teacher is right. It cannot be used with the diversion method. Wen Ming, you feel strange because you haven't understood what real diversion is."
“We dug three gates because Diazhu Mountain itself appears in the course of the river, blocking the normal flow of water. So all we did was dredge the river, and then use the natural solidity of Diazhu Mountain to build a It is a natural three-gate release dam, but the three gates are all located in the normal course of the river."
"The water diversion method is to direct the water out of the river to a new river system. For example, what the teacher did back then was to divert the water from the Fen River to a new river channel and block Shaoze. This is the real water diversion method. "
"It also means that I asked people from the Shang tribe to dredge the water in Meng Zhuze."
"What I'm talking about now is the method of restraining water and washing away sand."
"If the river water containing sand and gravel is diverted, the water potential of each diversion will slow down due to the reduction in water volume. When the water slows down, the sand and gravel mixed in the water will be retained...the sand and gravel will stop accumulating. When it comes down, the river bed will become higher and higher, and eventually the river water will be higher than the river bank, causing flooding and causing losses..."
"On the contrary, if the river is not diverted and the river is narrowed, the water potential will become larger and quickly wash away the river bed. Not only will the sand and gravel contained in it not accumulate, but it will take away the sand and gravel in the original river bed, making the river bed more and more complex. deep...."
Yu Zai gave a detailed explanation, and Wen Ming suddenly understood. However, Yu Zai also said that except for the Dizhu Mountain area, it is best not to use this method in other places, especially plain areas, because the soil quality of the plains is different from that of the mountains. , when a flood occurs, water and sand flushing will increase the strength of the river, causing the bank to burst.
Therefore, using this method, it is generally necessary to build a higher, wider and larger embankment behind the first embankment.
Not all mountains in the world can be called mainstay mountains, so there are only a few mainstays in the world.
The workers on the side sped up their movements, second, third, fourth... the water flow continued to break through the obstacles. With everyone's work, the river began to burst. Everyone immediately retreated back and followed the thick hemp. The rope began to return and two more gaps were dug near the banks.
The earth and rock dam was washed away in the roar.
"After opening up this place, the next step is to open up Tongguan, dredge Tongguan, and then open Longmen."
Ruanzai made a plan for Wen Ming and the others. Of course, it was just a suggestion now. This morning, Di Fangxu had already consulted Tai Ni in front of everyone and wanted him to be the new Sikong.
Tai Ti expressed his duty to accept two extremely outstanding disciples. After accepting two extremely outstanding disciples, the old man rekindled his enthusiasm for life and work and decided to devote all his remaining energy to the issue of managing the river. His father, Zhang Hui, did not kill him. Pangmeng may have died with some regrets, but if he could see the river successfully managed during his lifetime, he would have no regrets even if he died.
The river has been successfully opened to water. After the human gate was opened, the "ghost gate" raised by the stepmother did not enjoy the same treatment as the "human gate". Its opening activities seemed very careless. Everyone put the earth dam together Dig, and then make a lot of noises, and rush out with a sudden blast of water, so that the ghost gate can be passed.
"It's not for people to leave anyway. You can do whatever you want."
