Chapter 269: Bamboo Cage

Yao Xuan went to Jiangnan.

With the fastest horse, this made many ministers dumbfounded, how long will it take to come and go to Jiangnan, but September is coming, who will preside over the Danshui Canal then?

Li Wei was still not in a hurry, and when he arrived at the ordnance prison, he asked the workers to make strange iron pillars. In fact, it is a steel bar as thick as a dozen millimeters, but now it cannot be called steel, it can only be called iron, and the form is even more strange and long.

In later generations, this is a very simple technology, but in this era, it is still not easy.

After the arrangement was completed, he took Wei Xuantong, Wei Siqian, and Wei Hongji and left the capital together. The other words were not said, as soon as they met, they exerted the spirit of Wang Ba, and then Wei Xuantong and Wei Siqian fell to the ground and expressed their loyalty to themselves. That's impossible!

But in a few years, even if a few people don't say anything, they will be marked as ***. Wei Xuantong and Wei Siqian also know that they will not necessarily be "loyal". If you want them to help you, you have to come up with a ability, after all, unlike Wei Yuanzhong and Di Renjie at the beginning, the two of them had great ambitions, and they were extremely embarrassed, so they took the initiative to vote. Wei Xuantong and Wei Siqian will not. When they think it's worth taking refuge, they will take refuge. I think they are available, and they will be wooed. There is a step-by-step process to this.

But since the two were recruited by the prince, they couldn't get out, Wei Xuantong had a close relationship with Shangguanyi, and Shangguanyi's daughter was favored by the prince in the East Palace. Wei Siqian is also equivalent to most of the people of the Jingzhao Wei family, and the Wei family has a daughter who is also in the East Palace, and the Wei family sees the princess in the East Palace in the cold, and they are even more eyeing the princess or the future queen. What does this mean...... You get the idea.

When Wei Siqian accepted this appointment, he only smiled bitterly at his two sons, Wei Chengqing and Wei Sili.

But first you have to get down to business.

Therefore, when I went to the Danshui Canal, I had to do a better understanding. I don't know it, so how can I command? The speed is very fast, mainly Wei Hongji did a careful investigation in the summer, all the way south, Wei Hongji explained again. While listening to his explanation, I observed it on the spot.

Mainly in the lower reaches of Danshui, but Wei Hongji deliberately brought Li Wei to the front of Zhulin Pass. Then he pointed to the river and said: "Only this section to Longju Village, the construction difficulty will be several times that of the Sanmen Xinkai River." ”

It was already very difficult for Sanmen to open a new river, and he deliberately added several times. Li Wei couldn't help but look upstream. I came here once last year, but at that time the river was small, and it looked better, but now the river is still large, so I saw the true face.

The two sides of this section of the river are sandwiched between mountains, and the valley bottom is narrow, because of the constraints of the mountains, when the river arrives here, it is like boiling water, boiling and tumbling. Not only that, there are many sharp reefs in the river, Wei Hongji said: "The local people call this Liuling Gorge, also called the helpless Zhai River, this is the most difficult section of Danshui to control. Your Highness looks at it again, the terrain is like this, no matter whether it is deep or wide, it is not easy. ”

Referring to the mountain, both sides are bound by mountains, even if there is **, it is impossible to blow up the mountain to widen the river. If you want to be deep, there are countless reefs, and the riverbed is still composed of stone layers. Besides, it is not easy to build a long dam here to divert the flow and control the canal, because the water flow is rapid. Or dig another ditch, and the three doors are blocked, and there are mountains to block, and there is nothing to be done.

Wei Hongji pointed to a swamp in the distance and said: "Danshui is not like river water, there is less sand, although the flow is fierce in summer, but when the water is dry in winter, the water potential is very small. This is the side that is easy to treat, and the side that is not easy to treat is that the length is large and the construction date is ......"

Thinking of all kinds of difficulties and funds, Wei Hongji couldn't help but shake his head, in short, after he looked at it carefully, he was frightened. And said: "To the Longju Village, almost all the projects must be chiseled mountains and split mountains, the difficulty is high, fortunately the water is shallow, but also for it, after the Longju Village, the water level is deep, and this terrain is again. Your Highness, you didn't come in the summer, every summer comes, Zhulinguan suffers from waterlogging every three or four years, and the big swamp is formed by the flood breaking through the river embankment. The people have a proverb, helpless, walk the Zhai River, hold the rudder, and tremble in the legs. Four hundred waterways and three hundred beaches, the dragon king fought for the king of Hades. ”

"That's even more important."

Wei Hongji stopped talking.

The prince's intentions are good, but manpower is limited, and there are such and such problems in the rivers of the country, not only in the water transportation, but also in floods, but since ancient times, who dares to say that there is the strength to solve them all?

The problem of the upstream is not only this, but also because of the large drop, the 800-mile-long river, the drop is nearly 1,000 meters, and the water flow is turbulent, which is also a difficult problem to solve after the Danshui Canal. But it's not the main place to watch, this should be left for next year or the year after next year to solve, this year to solve the section of the Danshui Canal from Caoqiaoguan to Hanshui. After passing the Caoqiao Pass, the water surface begins to widen, and the water flow is relatively gentle. In fact, some places are still very deep, but as the folk proverb says, 400 waterways and 300 beaches. It's not just 300 beaches, I'm afraid these 300 beaches only refer to the 300 beaches on the waterway.

One by one is located in the middle of the channel, the depth of the river around the beach can reach dozens of meters, how to dig the beach for navigation? In fact, when Danshui arrives here, there is no need to dredge, and the width of the river is enough, mainly to dig the beach and remove the reef.

……

An autumn rain arrived, and dense raindrops poured down from the dark sky.

The relentless autumn wind tore the half-yellow, half-withered leaves, pulled them to the ground, and trampled them with rain.

Pei Yuhe is teaching Wan'er to read.

Wan'er is talented, and she doesn't know as many words as Pei Yuhe after all. The teaching is also serious, after all, I have read "The Female Rule", and this thing is the most helpful to the queen and the crown princess. When I arrived at the East Palace, it was not as good as I imagined, nor was it so bad. The prince was lukewarm to himself, but he was expected, but he was not too evil to himself. So he silently did his duty to make the East Palace harmonious.

Looking at the wind and rain outside, Bi'er blushed her stomach and said, "Crown princess, the concubine is very worried. ”

Pei Yuhe raised his head and looked out the window, after all kinds of things, he was already past the age of nymphomania. What's more, she is not so cheap that she is not as worried about the prince as Bi'er, but her tutor has been silently doing her duty as a wife.

said: "I am also worried, but although His Highness has suffered some hardships, he must also do this, which is helpful to the country, to the people, and even to His Highness himself." ”

It's not that he's ignorant, but he knows something about the prince's situation.

The two canals are one into one, and the crown prince succeeds to the throne, and there is no one to resist.

She was not alone in holding her thoughts, someone in Daming Palace was negligent......

……

In this autumn rain, Li Wei was still in a hurry, and the lower reaches of Danshui merged with Hanshui in Junzhou, and then took a shortcut and went straight to Yuzhou and Shaanxi. Because of the urgency of time, even if it rains, it is still on the road. In fact, I have more dissatisfaction with my father in my heart.

If you had prepared a month earlier, it wouldn't have been so embarrassing.

Li Wei did not fall ill, but Wei Hongji fell ill and lay in Yuzhou, unable to walk.

Li Wei apologized and said, "Lone is too urgent. ”

"Your Highness, it was the minister who delayed His Highness, but the minister was still very happy. Your Highness, forgive me for daring to say, how long has Your Highness not been sick? ”

Li Wei thought about it in surprise, and then remembered that since he came to the Tang Dynasty and had a serious illness, he had almost never been sick, of course, pretending to be sick did not count. Even when they arrived in Nanzhao, some soldiers were not accustomed to the soil and water, and they only felt a little unwell, and they did not fall ill.

"This is the fortunate thing of Sheji."

The words are enough, and they can't be explicit anymore. Li Wei said: "Wei Shaoqing, don't think about it, it's good to be healthy and recuperate, the Sanmen New River Opening Project is very big, and I still want you to show your skills." ”

Dropped Wei Hongji and came to Sanmen.

In fact, last year, he had a vague idea in his heart, that is, Qian's bamboo cage sinking stone method.

Although the bell mouth of the Qiantang River is magnificent, it is also a harm. But earlier it was not like this, a straight flare, like the Yangtze River, the mouth of the Yangtze River was not in Nantong in later generations, and the trumpet almost reached the Zhenjiang area of Changzhou. Later, the muddy water precipitated, the coastline expanded to the east, and the harm of the Yangtze River was not great, but the invasion of the Qiantang River tidal tide has gradually become a hidden danger to the safety of the people on both sides of the strait since the Tang Dynasty.

Li Wei went to the Qiantang River to watch the tide in his previous life, and overheard the narrator explain a piece of the history of the Qiantang River.

After Qian Biao became the master of Wuyue, Hangzhou became the capital of Wuyue. In order to consolidate his rule, he overhauled the sea pond, first using the traditional slab construction method to build the sea pond, but it could not withstand the impact of the tide and failed. Then the craftsmen suggested that the method of transporting huge stones to hold bamboo cages and planting giant trees to defend them was adopted, and finally succeeded.

In fact, it is to use the method of pulling wood and wooden pile foundation, and then cooperate with the method of bamboo fence to make a huge net bag to form a net, put a boulder in this net pocket, and load a pillar on the periphery, so as to divide the impact of the tide water, and make the sediment deposited on the inner side in a roundabout way to protect the sea pond.

This method was not replaced by the wooden cabinet stone pond method until the Yuan Dynasty. At that time, Li Wei was surprised by the wisdom of the ancients, so this method was always kept in mind.

There is no need for the pillar, what Li Wei values is this net pocket.

But at that time, there were still many problems that had not been solved, the Qiantang River was sand and mud, and wooden stakes could be rammed down, and under the door, all were hard stones. Or replace it with a steel column, that is, a thick steel bar, how to ram it down, and pull it up after ramming. Otherwise, these steel bars will become a series of reminders, sinking ships from ship to ship. However, it is necessary to build a dam in the depths of the human gate, and Wei Hongji has repeatedly mentioned that it is too narrow because it is a straight road, and when the water is large, many water flows in the human gate are divided into the new river, and the water flow is turbulent, which is not conducive to navigation. It was so shallow that when the water was dry, it was forced to stop sailing. Therefore, Li Wei has been thinking about improvement.

It wasn't until the original "piledriver" and drill rig came out that there was a preliminary idea in my mind.

When the water is dry, let the Ministry of Engineering build steel columns of different lengths, one end of the column is a plane, which is conducive to cannon hammer ramming, and the other end of the sharp pile, which is conducive to drilling downward. Below the flat end is an iron ring, plus three holes, which can be put on three brackets, pushed into the water, and the people stand on the shore and use three brackets to erect the iron pillars. The bottom is the thread, and then the threaded iron ring winch is made, but it is not a whole, it is inlaid in two halves, and the outside is inlaid with a screw cap. It is not easy, there is no lathe, at this time to make screw caps, waste and labor, is thousands of times the cost of the lathe. It is also helpless, primitive technology, waste is unavoidable.

Starting from the shore, two rows of iron pillars are stretched into the middle of the river, and many wires are woven in the middle, and then mud bags and stones are sunk in the middle, so that with the barbed wire fence, the flood water cannot wash away the mud bags and stones. When it is time to dig the dam, use the winch to twist the iron pillar in reverse and cut the iron wire. As for the stones and mud bags, they can be washed downstream by the floodwaters.

This method can also be used in Danshui, but it does not necessarily require iron pillars, and some beaches can be replaced with wooden stakes. It was a big waste, but it made it possible to open a new river. Otherwise, with the current technology, the dam can only be built in the shallow place of the people, so the newly opened river mined is not only not deep, but also not large, wasting financial resources and manpower, and not working.

It was the day of the Double Ninth Festival, and the sky was clear.

When I heard that the prince had come to Sanmen, many people flocked to watch.

This is deliberately high-profile, and it has to build the confidence of the people. Otherwise, even Wei Hongji would have retreated, not to mention the others. Li Wei ordered the soldiers to move the two iron pillars and cannon hammers urgently transported from the capital to the Renmen Peninsula. Start experimenting with the effect.

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