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Chapter 697

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    A new day begins, and new work must continue. The experience of the predecessors is worth learning. I re-examined the excavated road and observed the movement of the water to ensure that there is no strong wind today and the flow of the river is slow.  Some.

    After confirming that it was correct, Yu Zai hung up the horn, then stretched out his hand, and someone beside him took a clay pot and poured water down.

    "What is this for?"

    "Cutting the ribbonto be auspicious, life should have a sense of ritual."

    Concubine Zai washed her hands, combed her hair, and shook hands with the surrounding worker representatives cordially, then took a piece of plain "big flag" over to wipe it, and then took out the scissors.  cloth.

    It's really just a piece of rotten cloth. There is no way, the red cloth cannot appear here. After all, there are no workers in the dyeing workshop, and the emperor does not allow such extravagant things. Just cut a piece of rotten cloth and feel the ceremony.

    Scissors have been widely circulated since Yijun made them.

    After the ribbon-cutting was over, Yuzai blew the horn, and beside him, Wen Ming picked up the plain flag that Yuzai had used to wipe his hands before, with a bamboo pole.

    It is said to be a flag, but it is actually just a sackcloth used to cover an ox cart.

    After the bamboo pole was raised, someone raised the bamboo pole at intervals. At the end, people standing on the earth-rock dam saw the bamboo pole being lifted and nodded to each other.  It is required that all the people standing on the earth-rock dam should wrap thick hemp ropes around their waists, this is to prevent them from being swept away by the current of the big river and dying when the breach occurs.

    There is also a rope in the middle, which is blocked in the current and spans the two banks. This hemp rope is unusually thick.

    The big rivers of this era have extremely high water levels, extremely fast flow, fierce and irritable.

    As those shovels and sledgehammers fell, after a while, the first stream of water broke through the earth-rock dam.

    But this is not enough, because to allow the river to flow normally instead of just breaking through a gap, the earth-rock dam will be destroyed.

    "Don't worry that the ruins of this earth-rock dam will block the flow of the big river, because when we built the 'Renmen', the river channels on both sides have been reinforced. The geographical environment of Dizhu Mountain and Wuhutan is already very strong. 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 two gates of ghosts and humans, and it took Dahe a million years to break out of a gate of gods."

    "So, in a few years, when the great flood comes, the water flow of the gate of God and the gate of ghosts will become huge, and because these two gates rely on the pillars of the mountain, they are very strong and will not be affected by the flood.  Impulsive, so we strengthened the river bank and tidal flats, built oblique defenses, and cleared the new river channel below"

    "The ruins of that earth-rock dam will disappear within a month after the flood."

    When Yan Zai said this to Wen Ming and the others, Tai Tai nodded: "It's really a magical methodbut I know that this method cannot be used together with shunting."

    Wen Ming was a little confused immediately, why didn't this be used together with the diversion method?

    The ghost gate means that it has been insulted!

    But Yu Zai said to Tai Tai: "The teacher is right. It is true that it cannot be used with the diversion method. Wen Ming, you feel strange because you haven't figured out what the real diversion is."

    "We excavated the three gates because Dizhu Mountain itself appeared in the channel of the big river, blocking the normal flow of water, so all we did was to dredge the river channel, and then use the natural firmness of Dizhu Mountain to build a  The natural Sanmen discharge dam, but the three gates are all out of the normal channel of the big river."

    "The method of water diversion is to direct the water out of the river to a new channel system. For example, what the teacher did back then was to divert the water from the Fen River to a new channel and block Shaoze. This is the real method of diversion of water.  "

    "It also means that I asked the people of the Shang tribe to dredge the water in Meng Zhuze."

    "Now what I'm talking about is the method of beaming water and flushing sand."

    "If the river water containing sand and gravel is diverted, the water potential of each diverted river will slow down due to the reduction of water volume, slow down and the sand and gravel mixed in the water will be stoppedthe gravel will stop accumulating  If it comes down, the river bed will get higher and higher, and eventually the river will be higher than the embankment and flood, causing losses"

    "On the contrary, if the river channel is narrowed without diversion, the water potential will increase, and then the river bed will be scoured quickly. Not only will the sand and gravel mixed with it not accumulate, but it will take away the sand and gravel in the original river bed, making the river bed more and more serious.  deep"

    After Yan Zai gave a detailed explanation, Wen Ming suddenly realized, but Yan Zai againHe pointed out that except for the Dizhushan area, it is best not to use this method in other places, especially the plains, because the soil quality of the plains is different from that of the mountains.  large, resulting in a dike burst.

    Therefore, this method is generally used to build a higher, wider and larger embankment behind the first embankment.

    Not all the mountains in the world can be called Dizhu Mountains, so there are only a few people who are the mainstays in the world.

    The workers on the side quickened their movements, the second, third, fourth The water flow continued to break through the obstacles. Under everyone's work, the big river began to burst, and everyone immediately retreated to follow the thick hemp  The rope began to return, and two more gaps were dug near the banks.

    The earth-rock dam was washed away amidst the roar.

    "After opening up here, the next step is to open Tongguan, clear Tongguan, and then open Longmen."

    Concubine Zai made a plan for Wen Ming and the others. Of course, it is just a suggestion now. This morning, Di Fangxu had already consulted Tai Tai in front of everyone, and wanted him to be the new Sikong.

    Tai Tai said that it was his duty. After accepting two excellent disciples, the old man rekindled his enthusiasm for life and work, and decided to dedicate all his spare energy to the problem of governing the river. His father, Zhang Hui, did not kill him.  Death Pang Meng may have died with some regrets, so if he can see the great river being managed successfully in his lifetime, then even if he dies, he will have no regrets.

    The big river has been successfully opened. 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 sloppy.  Digging, and then screaming loudly, the flood rushed out, so that the gate of hell can pass through.

    "Anyway, it's not for leaving people, just do whatever you want."

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