If you want to release water to flood the girders, the first thing is to block the downstream of the chasm and let the water level of the chasm rise, so that after the excavation, the water of the Yellow River can flow from the newly built river channel to the Daliang City.

Therefore, after Zheng Guo rushed back to Xingkou, he immediately ordered to start construction to block the gap.

In fact, at this time, the Qin army guarding in Xingkou had already been prepared, after Zheng Guo gave the order, everyone immediately moved together, and threw the mud and sand bags into the chasm, the chasm was not wide, and the Qin army had many manpower, so it only took half a day for the chasm to be blocked, and the water level of the chasm was also rising rapidly, until it exceeded the mud and sand bags that blocked the river and flowed through. After Zheng Guo's calculations, the water level of the chasm at this time had exceeded the ground by about two zhang.

And outside the city of Daliang, after Wang Jian issued an order that the cofferdam must be completed in three days, the Qin soldiers and civilian servants started together, changing shifts day and night to rush to work, and finally completed within the specified time of Wang Jian, the height of the cofferdam is generally more than one zhang and five feet, and in some places it is even as high as two zhang.

At this time, the time had entered the middle of April, summer had come, and the weather had begun to get hot, although it was nearly a month later than the scheduled time, but the Qin army finally waited for the moment when it could flood the beams.

But in the early morning of that day, the clouds were all over the sky, the wind was blowing, and the weeds were swaying with the wind, undulating like waves, and the heat that had been in place for several days was greatly reduced, and there was even a little chill.

At this time, the main generals of the Qin army gathered on a high post about 1,200 steps northwest of Daliang, including some generals stationed abroad, who also returned to the camp to witness the moment of flooding Daliang.

In fact, this high hill is just a small hill of seven or eight feet, but it is the highest point in the area around the Great Liang, Wang Jian set up his main camp here, and the Qin army also built many fortifications around the high gang, and built a strong fortress here.

Moreover, the Qin army had built a high platform as high as Zhang Xu on the high post, so at this time, Wang Jian sat firmly on the high platform, and basically could look down on the entire battlefield. From the perspective of Gao Gang, the cofferdam built by the Qin army stretched out from both sides, encircling the girder, like a huge iron chain, firmly locking the girder. And every few hundred steps, there will be a fortress, like pearls scattered on iron chains, and on each fortress there will be a big flag, red on a black background, with a huge Qin character written.

The distant Daliang City is like a huge beast, quietly lying in the encirclement of iron chains, seemingly powerless to struggle, and seems to be accumulating strength, ready to get out of the chain, and the tall city wall, against the background of dark clouds, looks particularly majestic. Although the city walls were also full of defenders, they were all silent, waiting for the Qin army to attack.

Wang Ben, Yang Duanhe, Han Teng, Li Xin, Xin Sheng, Qiang Qi, Zhang Han and others also held their breath, and many people unconsciously looked at Wang Jian, all of them were people who had been in battle for a long time, and they knew very well in their hearts that the more silent and immobile the enemy, the more tenacious and terrible the enemy was.

However, Wang Jian didn't move, as if he didn't see it, but squinted his eyes and looked up at the sky, and said to Zheng Guo beside him: "It looks like it's going to rain, is it good or bad for us to rain at this time?" ”

Zheng Guo thought for a while and said: "The rain can cause the water level to rise, which is naturally beneficial to us, but it will also bring difficulties to our breach construction. ”

When Wang Jian heard this, he also smiled and said, "Then let's do it quickly, and strive to dig through the breach before this rain falls." ”

Zheng Guo nodded, and immediately passed the order to dig the hole and release the water.

The chasm was about ten miles away from Daliang City, and the order naturally could not be transmitted directly, but after Zheng Guo gave the order, the blood-red penangular flags were raised one after another, from Gaogang to the river, and then extended to the edge of the chasm.

At the junction of the three rivers and the chasm embankment, there are hundreds of able-bodied soldiers and civilian servants with iron hoes and shovels in their hands. And as the order came, everyone immediately started together, wielding iron hoes and shovels vigorously, and dug up the river embankment.

By this time, the water level of the chasm had already risen to the limit, and if it were not for the fact that the dam of the chasm had been raised and reinforced, I am afraid that the breach would have been broken long ago. Therefore, after everyone dug up the embankment, the river water, which had been gathering momentum for a long time, seemed to have finally found a vent, and immediately rushed out of the gap, along the three rivers, in the direction of the girder. A few soldiers who were a little slower and did not get ashore in time were swept away by the surging torrent in a blink of an eye, and they didn't even have time to make a sound. The soldier who gave the order waved the flag in his hand again, and transmitted the news of the gap back to the high post.

Wang Jian, Zheng Guo and the generals of the Qin army naturally could not see the construction scene on the river embankment, so after Wang Jian's order was handed down, everyone could only wait. The waiting time always passed very slowly, Wang Jian and Zheng Guozhi were still calm and silent, but many generals looked very anxious, some walked back and forth on the high platform, some looked in the direction of the chasm, and some muttered: "Why is there no water yet." ”

At this moment, I don't know who shouted: "Look, the flag is coming." ”

So most of the Qin generals immediately looked in the direction of the chasm, only to see the flag shaking, coming in the direction of Gaogang, and with the arrival of the flag, many people heard the rumbling sound, like a muffled thunder, and like a thousand horses rushing together.

As the noise became louder and louder, even some soldiers couldn't help it anymore and looked in the direction of the river.

"The water is coming, the water is coming."

With the shouting of **, I saw a yellow turbid torrent, rolling along the river, like a huge yellow dragon, galloping and roaring, with an unstoppable fierce momentum, and majestic and fierce huge energy, rushing straight towards Daliang City. Even the fish that usually live in the river water are dizzy and dizzy by the huge impact force, and many fish are directly thrown out of the water, and when they fall again, they are already crushed.

Although Wang Ben, Yang Duanhe, Han Teng, Li Xin, Xin Sheng, Qiang Qi, Zhang Han and others are all people who have experienced a hundred battles and have been on the battlefield for a long time, at this moment, they can't help but be shocked by the huge water potential that accumulates the power of heaven and earth, and all of them do not doubt that they may never forget this scene in front of them for the rest of their lives.

"Hahahaha-" At this time, Wang Jianji stood up from his seat, looked at the rushing and roaring Yellow River, looked up to the sky and laughed: "With such a water potential, it is better than a million male soldiers, so why worry that the girder will not break." ”

When the generals heard this, they all laughed together, because in front of this kind of natural force, the power of human beings suddenly seemed extremely small, and in front of this kind of power of heaven and earth, Daliang City seemed to be vulnerable at all.

The cofferdam built by the Qin army is not a straight line, but a zigzag, built according to the topography, ranging from 700 to 1,000 steps from Daliang City, but the river built by the Qin army is less than 400 steps away from Daliang City, facing the northern wall of Daliang City.

"Wow-boom! Wow-boom! Wow-boom! ”

With a loud rumbling sound as the river flowed by, it finally rushed out of the river.

Losing the shackles of the river, the torrent dragon suddenly expanded as if unbound, and the three torrents converged into one, covering the entire land, as if after a long time, a big explosion came, and with countless mud, sand, stones, trees and other things, with enough to rush across the fearless and domineering momentum in front of him, and violently hit the north city of Daliang City.

In fact, as soon as it was early in the morning, the plateau received a report from the defenders, the movement of the Qin army today was very abnormal, and it seemed that it would break the water today, so the plateau also led the generals who defended the city to rush to the north city to see how the Qin army released the water. At this time, the walls were filled with mud and sand bags to prevent the walls from being washed away by heavy floods, so as to close the gaps.

But seeing the Huangshui River rushing up, many generals and soldiers also changed their faces, this is still Gao Yuan's repeated emphasis that the Qin army will flood Daliang City, so everyone still has a certain amount of mental preparation, otherwise they would have been scared into a mess.

In fact, Gao Yuan was also very nervous, although he knew many examples of water attacks in history, and even knew that more than 2,000 years later, in order to block the Japanese attack, a man-made breach of the Yellow River caused several provinces in the lower reaches of the Yellow River to be flooded, and the disaster lasted for nine years, and millions of people died.

But after all, Gao Yuan has never seen the scene of the outbreak of the flood with his own eyes, and now that he sees it, he can't help but be secretly frightened, wondering if the wall of the girder can block such a huge water potential.

"Boom!"

The rushing water finally violently hit the walls of Daliang City, and a huge roar was found. The walls of Daliang City seemed to tremble, and rushed up several zhang high Lang heads, and even rushed onto the walls of Daliang, washing away a lot of mud and sand bags, stones, bed crossbows, trebuchets and other things on the city, and some soldiers were also washed away by the water, and they were unstable on their feet. However, after the restoration of the Great Level, the walls of Daliang City were still unharmed and standing. And the water immediately spread around the walls of Daliang City.

Gao Yuan also breathed a sigh of relief on the city tower, fortunately, the city wall of the girder is still strong enough, as long as it blocks the first wave of the impact of the water, there is no big deal, so Gao Yuan also hurriedly ordered to rearrange the items on the city wall that were washed away by the water, and immediately check the city wall, whether there is water leakage, collapse phenomenon.

The soldiers of each city wall and each gate reported that there was no major damage to each section of the city wall, but there was a leakage in each city gate, because the gap between the city gate and the city wall was very large, and it was impossible to block it, so it became the main leakage point. However, Takahara had already prepared for this, and after the water leaked into the city gate, it was still blocked by the embankment inside the city, and it was impossible to move forward.

"Bang la la la!"

At this moment, the rain fell from the sky, hitting the city walls and the water, and a heavy rain finally came.