Tick ​​~ Tick ~

When the ice melts, drop by drop of water gathers and gradually turns into a stream.

The ice surface outside the camphor tree base gradually melts into water as time goes by.

The ice cubes mixed with snow and water, and the broken ice layer sanks, and the running water collided on the wall of the buffer city.

Three days later.

During the day, the temperature rose to above zero octave.

These three days were all sunny. Under the sunlight, the ice and snow outside melted into water.

Crazy-

From the valley, flowing water kept pouring in.

Converge in a relatively low terrain.

The inner city of Dazhangshu is built on this mountain. The top of the mountain is gentle and there are two highest peaks in the middle, namely the two mountains in the inner city.

There is a cliff outside the inner city.

With the expansion of the Dazhang Tree Base, the cliff and the lakes under the cliff are also included in the scope of the Dazhang Tree Base, that is, the area of ​​the buffer city.

The buffer city of Dazhangshu Base covers a wide area, reaching an area of ​​tens of thousands of acres.

Even the buffer city walls extend to the national highway several kilometers away from the inner city.

The national highway was built in a relatively gentle and low position, so there would be no problem with the national highway being built before the end of the world.

But in the end of the world, heavy rainstorms are always there, which also leads to the frequent flooding of the national highway.

At the end of the frozen natural disaster, the outbreak of floods completely submerged the national highway.

The snow on the mountains everywhere melted into water and flowed to the national highway with relatively low terrain. The water level line reached a height of twenty meters, and as the snow melted, the water level line continued to rise.

On the wall of the city.

Yu Lei stood on the wall more than 40 meters high, looking at the flood hitting the wall with a little worried look.

Step on the pedal-

A man in a black combat uniform came from the side.

"Captain, the inspection of the urn city has been completed, and there is no leakage."

"Yeah." Yu Lei nodded.

As the captain of the first brigade of the Minwu Brigade, he is the oldest in the entire Minwu Brigade.

"Where is Captain Chen's side? It is said that many stones rushed to the north gate."

The north gate of the city was just at the foot of the mountain. A mountain torrent broke out and the soil and rocks surged into the north gate.

These stones and silt accumulation will cause floods to rise as well.

"Captain Chen reported to Fu Sheng, a drainage system expert at our base. He said there is no need to worry, the mud and sand cannot accumulate too high. After the flood recedes, you can clean the mud and sand."

"Um."

"The water level rises too fast, and the water level rises to twenty meters in three days." Yu Lei said with some concern.

"Captain, wouldn't it be better to wait for the water to flow along the low place later......"

Buffering above the wall of the north gate of the city.

Chen Delong watched the vast flood as it rushed down the mountain and hit the walls, and the water splashed at a height of seven or eight meters.

Said to the legs beside him:

"The height of the water level has reached more than ten meters, so I don't understand why the North Gate has to be built at the foot of the mountain, like other places are built on the mountains..."

Legs replied awkwardly:

"Brother Long, these mountains outside the North Gate are too high and steep, and the top of the mountain is not flat. If you really want to build a wall on it, the project is too big..."

"If you want to expand the new city in the later stage, just include these mountains."

"Also expand?" Chen Delong's eyes were a little surprised.

"I don't think it's possible. Although most of the buffer city has been built now, the headquarters base is only more than 10,000 people, tens of thousands of acres of land, and it is a bit vast and sparsely populated."

Legs coughed twice and continued:

"You forgot. Last time you told me that after the meeting, many people will be moved from the Oil City after the frozen natural disaster."

"Oh, yes, I almost forgot about this." Chen Delong remembered it.

.........

Woo woo woo woo woo woo woo-

A drone lingers over the camphor tree base and then flies around the buffer city wall.

In the inner city villa, Li Yu personally controlled the drone to check the situation of the Dazhangshu Base.

I saw the entire camphor tree surrounded by water on all sides.

The water level outside the buffer city wall reached 20 meters, which is the area near the national highway with the lowest terrain.

There are also areas where there is no water, because these walls are built on the endless peaks.

The Dazhang Tree Base covers a large area, high in the east and low in the west and relatively flat in the north and south.

To the west, close to the national highway, the national highway has become a river.

Flow from south to north, flow into tributaries, then into Ganjiang River, head north to Nanchang, and arrive at Poyang Lake.

The location of the Dazhang Tree Base is relatively high compared to the surrounding area.

However, a mountain torrent will also impact the buffer city wall.

After controlling the drone for a while, the drone flew back to the terrace of the villa in the inner city.

Fu Sheng put away the drone and said, "It's a good idea to put it away from Li Yu and said:

"City Lord, I and the water conservancy expert flew around for a few days in a helicopter. After our calculations, the maximum water level of the buffer city wall is twenty-five meters, and it will never pour into the buffer city."

"There are no need to worry about the fences in other locations, and the terrain is relatively high..."

Li Yu put the control in his hand on the desktop, "Well, monitor the water level every day. Once it exceeds 30 meters, immediately retreat the people in the buffer city to the fourth outer city."

"Yes." Fu Sheng quickly replied.

"Go down."

"Okay city lord."

After Fu Sheng left, Li Yu looked at the tender buds that popped up on the grass, dazed, thinking about things in his head.

They have built the wall of the buffer city to more than 40 meters high, but facing such a terrifying mountain torrent, the snow melted in three days, forming a twenty-meter-high flood.

It's true terrifying.

The mountain torrents generated by the melting of this snow are extremely terrifying, even more terrifying than heavy rain.

The formation of the snow-covered ice layer before was a blizzard that lasted for three or four months.

The intensity of the blizzard is so strong that it is equivalent to raining for three or four months, but this rain only appears in the form of ice and snow.

Now the snow-covered ice layer has melted. In just three days, the Dazhang Tree Base has rebounded from zero to octave. A large amount of snow has melted. After the snow in high terrain melts, it pours into places with relatively low terrain.

It was equivalent to three months of snow, all pouring into low places.

For example, the small town seven kilometers north of the Great Camphor Tree Base has completely become a swamp country, forming a large lake of thousands of acres.

The impact of the mountain torrent is extremely strong. It is predictable that when a flood passes, the ruins of that town are probably gone.

"call....."

"I don't know if the oil city can hold on..." Li Yu sighed.

I contacted my uncle yesterday and the flood height outside the buffer city reached ten meters.

The temperature recovery speed in the buffer city of Petroleum City is slower, and the temperature is only 2 degrees Celsius.

The latitude of the oil city is higher, and the temperature is not as fast as the camphor tree base. The snow melts relatively slowly, so the water level rises slowly.

The melting speed is relatively slow, giving water a buffer time to flow to lower places.

Suppose that the temperature reaches 40 degrees a day, and in a very short time, all the ice around the oil city melts and rushes to the closer oil city, the entire oil city will be submerged.

But this situation is basically impossible.

However, the snow melts slowly, and the water level rises slowly.

However, the height of the oil city wall has only reached twenty-two meters after being built these days.

If the subsequent temperature rise speed increases faster, the snow melts faster and the water level will increase rapidly.

but.

After all, this is not a heavy rain. They only need to persist for a few days at most. When the water level reaches a peak, it will drop.
To be continued...