Guo Shoujing rushed to the Mongolian Golden Tent in Huaxian County, and several Mongolian guards carefully lifted Guo Shoujing off his horse, and then almost carried Guo Shoujing into the Golden Tent. Kublai Khan was surprised and delighted to see the water conservancy experts he greatly admired and respected coming so quickly. Seeing him like this again, Kublai Khan said angrily to the Mongolian guards: "How dare you push Guo Shoujing like this!" ”

Guo Shoujing's voice was weak and stopped the angry Kublai Khan, "Don't blame them, the Great Khan himself wants to come over in a hurry." ”

Kublai Khan asked the maid to carefully pounce on the water conservancy expert Guo Shoujing and settle him on it, and then he said quite distressedly: "You can endure hardships along the way." ”

The message to Guo Shoujing was sent by an 800-mile fast horse, and at this speed, Guo Shoujing rushed from Dadu to Huaxian at a speed of more than 150 miles a day. Guo Shoujing briefly introduced the situation, and the Mongolian guards arranged it in advance, and he rode a horse during the day and rode in a car at night. The whole speed is not bad.

After briefly answering the Great Khan's answer to the distance, Guo Shoujing continued: "Great Khan, the minister has already arrived at the new river to see. The minister thought that the new river was already a mile wide, and I was afraid that it would not be blocked in the past few months. ”

Although he felt sorry for Guo Shoujing, Kublai Khan's face still didn't look good. He sat back in his place, and then asked, "Why can the Song army even block the Yellow River, but we can't even block the one-mile-wide river?" ”

Guo Shoujing heard the unhappiness of the Mongolian Great Khan, and he hurriedly replied: "Your Majesty, the Song army has not blocked the Yellow River now. It will be the autumn flood soon, and as soon as the autumn flood comes, the amount of water will increase greatly, what will they do to block the Yellow River? ”

Although Kublai Khan very much agreed with Guo Shoujing's water conservancy construction ability, he still felt an inexplicable uneasiness. Guo Shoujing told Kublai Khan about the basic problem of blocking the river.

The river channel is not a flat bottom, but a trapezoidal shape that is narrow at the bottom and wide at the top. It looks easy to fill a river close to the riverbank, but it gives the illusion that the whole river is like this. The reality is that the closer you get to the center of the river, the deeper the water becomes, and the dirt bag can be fixed with a wooden stake at the edge of the river, and when you reach the middle of the river, the stones thrown in it will be swept away by the turbulent current......

Kublai Khan fought in the south and north in his life, and he didn't know how many rivers he crossed and how many autumn floods he saw. After listening to Guo Shoujing, a water conservancy expert, talk about the problem of blocking the river, and after linking theory with practice, Kublai Khan felt that his heart was much brighter. He couldn't help but praise: "Even if Zhao Jiaren can't block the river, he also did the best response, so that we can't move in a hurry." ”

Guo Shoujing didn't expect the Mongolian Great Khan to be so open-minded, he was stunned at first, and then the admiration in his heart rose greatly. He said with emotion: "Great Khan, the new river is turbulent and cannot be boated. It is no good to entangle with the Song army here, and if the autumn flood comes, our army will be even more inconvenient. ”

When it comes to military affairs, Kublai Khan has little trust in Guo Shoujing. Just as he was about to ask Guo Shoujing a few military questions, he heard Guo Shoujing say: "Great Khan, the Song army has used this new river channel to divide Henan and Shandong into several pieces. ”

Kublai Khan's eyes lit up, and his expression became serious. He asked Guo Shoujing not to continue, and then sent someone to invite Boyan over. The three of them got together, and Kublai Khan asked Guo Shoujing to talk about the division of the river into Henan and Shandong. After listening to this, Boyan took a map. This map is far worse than the map of the Song army, but it also draws the region. As soon as the pen was put on the map as a new river, everything Guo Shoujing said was clear.

Pointing to the Ashu Army, sandwiched between the old and new rivers, Boyan asked, "Is it possible to cross two rivers here?" ”

Guo Shoujing shook his head, "Our army has no boats on the Yellow River, and the new river channel passes through the former dry land, where can we get boats?" ”

"Sheepskin rafts can't cross the river?" Kublai Khan asked.

The Mongols' weapon for crossing the river was a sheepskin raft, and no matter how difficult the river, they would try to do so. Guo Shoujing knew that the Mongols valued sheepskin rafts, so he pondered for a moment before replying: "Great Khan, the new river is turbulent, and tens of thousands of people can't cross the river quickly. ”

These words really made Kublai Khan very unhappy. He hoped that Ah Shu would be able to cross the river and join him as soon as possible, if what Guo Shoujing said was true, it would mean that Kublai Khan's strategy had been outrageously wrong. Previously, Kublai Khan felt that things were unspeakably wrong, so he did not separate the cavalry under his command from the infantry. If it is really separated, it is equivalent to the Mongol army itself dividing the army into three parts that cannot be effectively cooperated.

"Great Khan, our cavalry should not divide the troops." Boyan said.

"Why?" Kublai Khan was angry in his heart, even if he felt that Boyan's opinion was reasonable, he couldn't help but ask unhappily.

Boyan still said in that cold tone, "My Mongolian cavalry appeared on the south bank of the Yellow River, if Zhao Jiaren directly besieged the county seat of Huaxian County with his infantry army. As long as they are surrounded, the infantry will not be able to leave. ”

"Enough!" Kublai Khan said angrily. Of course, he knew that what Boyan said was right, and now he saw Song Jun's big reaction because they had already calculated the situation. Zhao Jiaren dared to block the Yellow River as if no one was around, because he was sure that the Mongolian army could not fight in the field, the city was incompetent, and the naval army was useless. The fact that the Mongol army, which had once had the upper hand, was suddenly at an all-round disadvantage made the Great Khan Kublai Khan angry, and he could not help but strode towards the outside of the Golden Tent. The guards outside hurriedly lifted the curtain of the big tent, and the curtain only touched Kublai Khan slightly, Kublai Khan turned around and kicked the guard, and pulled out a horsewhip from the person next to him and whipped the guard on the head and face.

Listening to the angry shouts of the sweat outside and the sound of the guards begging for mercy, Guo Shoujing's face was frightened. He knew that although the Great Khan Kublai Khan was a wise king, he had an impatient personality and would be angry when the fire came up. And Boyan Fangcai's words obviously greatly angered Kublai Khan.

Marshal Boyan didn't speak, he was silent for a moment, and then asked Guo Shoujing, "I wonder if you can go with me tomorrow to see Xinhe Road?" ”

"If you can see the Yellow River now, it would be the best." Guo Shoujing put forward his views.

Boyan replied: "The Song army has military boats on the river, and we can look at it from a distance, and the place where they built the embankment can't be reached at all. To look at it, we've already had two or three hundred dead. ”

Knowing that the Song army was so well prepared, Guo Shoujing couldn't say anything. On the water, once the opportunity is lost, it is extremely difficult to recover. The Song army came from the south, and its ability on the water surface was much stronger than that of the Mongols.

If Zhao Jiaren listened to Guo Shoujing's words, he couldn't help laughing. Because if there was no Zhao Jiaren, the historical Mongolia would have completely defeated the Great Song Dynasty on the water. Moreover, Zhao Jiaren is a native of the Central Plains by the Huai River in Anhui Province, not a southerner.

However, at this time, Zhao Taiwei did not care about Mongolia, or Mongolia's actions did not touch the prior planning, and set up many landmark events in the previous plan, as well as the response to these events. The Mongols did not touch any of them at all. That is, the current Mongol army is slow to move and poses no threat to the Song army at all.

At this time, Zhao Taiwei put all his energy into the construction of the barrage. By this time, the distance between the two causeways had been reduced to two miles. Even with the diversion of new channels, the damming of the river still caused the water level of the Yellow River to rise, and the entire river bank and dam were heightened. The new estuary, which was originally more than ten zhang long, has expanded to almost two miles under the washing of the river. Originally, the barracks on both sides of the new river were designed to be seven or eight miles apart, and everyone still felt that it was too far away, but now some people are worried about whether there will be a danger of flooding in the barracks area if it goes on like this.

The net made of white and brown rope, filled with stones and straw bags filled with sand, is seven or eight meters long and more than one meter in diameter. Use the lifting equipment to turn to the seven or eight meters long slab in front of the embankment, and use the equipment to lift one side of the slab, so that the huge sunken river object falls directly into the water, instead of being thrown on the muddy edge of the dam. Every time this sinking river falls into the water, it will stir up huge water waves. After falling into the water, the huge thing sank into the water of the Yellow River and disappeared without a trace.

Zhao Jiaren is not a water conservancy professional, but he has seen documentaries on television about the construction of dikes on the Yellow and Yangtze rivers. What Guo Shoujing proposed, Zhao Jiaren is also very clear. Gathering the technical data accumulated by the Great Song Dynasty and the river personnel, this reclamation can be regarded as doing its best.

"Captain, according to the previous schedule, it will be completed in five days." Dong Ruhai, who was in charge of the measurement, came up with an arithmetic result.

After hearing this, Zhao Jiaren turned his head to look at Dong Ruhai. What he could see in the face of the technical leader was nervousness. Zhao Jiaren was also a little relieved at this time, who wouldn't be nervous when encountering such a thing. The more nervous they are, the more they like to say something to embolden themselves.

"Let's do it according to the laws of science." Zhao Jiaren replied. After the 80s of New China, there were special descriptions of various large-scale water conservancy projects in large-scale documentaries. Zhao Jiaren knew what the difficulty was.

As he spoke, a roar was heard not far away. Zhao Jiaren and Dong Ruhai's eyes both looked over. It was the engineering team blasting the new estuary, artificially blowing up some edges so that more water from the Yellow River could flow smoothly from the new channel. If the Yellow River can flow more water from the new channel, it will flow less from the old channel. The siege was carried out at such a time, and it really reached the point where the baht must be compared.

Five days flew by on the construction site. The width of the water surface of the estuary of the new river channel has greatly exceeded two li, and it is close to three li. The width of the old river surface is less than 400 meters. At such a distance, if you shout loudly, you should be able to clearly hear the voice on the other side, but at this time, you can't do it. This is not because of the strong winds on the Yellow River, but also because the sound of the river at this gap is like a war drum.

At this time, it is no longer a net bag made of white and brown rope, but an iron cage made of iron bars the thickness of the little finger. The cage was filled with stones and sacks of cement. The current cement is not of good quality, and it will crumble if it is put into such a turbulent water.

Seeing these expensive industrial products on the market being thrown into the river, Zhao Jiaren sighed viciously in his heart: If there were no state-owned enterprises, this river embankment would probably make Lao Tzu bankrupt!