Chapter 670 The snow melts and the crops are harvested

The weather is getting warmer, but the temperature is still below freezing and the snow will not melt.

These thick snows slowly solidified and hardened.

Western Conference.

Lao Zhuang survived in the end, but what he didn't expect was that when he just woke up, he saw the snow stop.

Then came the zombie wave. This zombie wave once again caused heavy losses to the Western Conference.

Many of them suffered from frostbite due to the extreme cold.

After staying up for more than a month, as the temperature slowly rose, they finally breathed a sigh of relief. However, due to the previous wave of zombies, many people died in the entire base. They did not count carefully, but there must have been thousands of deaths. .

The total number of people in the Western Alliance at this time has decreased rapidly, which indeed verifies Li Yu's original inference that in the end of the world, a larger base will slowly collapse sooner or later, unless it is absolutely powerful!

This kind of strength is not unilateral. It not only refers to the strength of force, but also the strong protection of the base, the ability to store food, and the ability to plant.

Indispensable.

The Western Alliance has gone from its original five-digit population to natural disasters, zombie waves, the departure of several forces, and the current blizzard and extreme cold.

Let the population of the Western Alliance be reduced to only a few thousand people.

Gan Xiong's brows have been frowning tightly recently. Now he has too many problems to face.

However, there are many problems that they have no way to solve now.

For example, there are power issues. Without enough power, heating, lighting, heating, etc. cannot be guaranteed.

It can be said that electricity is the foundation of the Western Conference.

Except for the food of course.

Solar panels are limited, and while they can produce some electricity, they are not particularly efficient in a blizzard, and the amount of electricity they produce is not high.

There was no time left to look for trouble at the Eastern Suburb Winery in Yishi. They couldn't get out of the base in such cold weather.

The second blizzard destroyed many bases in the world.

But as the temperature rises, it also gives mankind new hope.

ten days later.

The temperature finally returned to freezing.

This is a critical value, the critical value of ice and snow melting.

Thick snow covered the entire land, forming a pure white world, and the cold breath still filled the air.

However, as the temperature gradually rises, the world of ice and snow begins to quietly change.

The sun shines through the clouds, and its warm rays shine on the snow, shining like thousands of silver lights.

Under the influence of the sun, the snow began to melt, forming crystal clear water droplets. They are like countless gems, scattered on the white snow, shining brightly.

As the temperature rises, the snow melts rapidly, and the water droplets gather into streams, flowing quietly.

Streams formed small channels where the snow melted, and they flowed along the low ground, making a faint gurgling sound. The water drops rush down, as if singing the joy of melting ice and snow.

The water gathered into a stream and continued to flow towards a wider river. The thick snow melted little by little, the river gradually swelled, and the waves rippled, bringing a vibrant atmosphere. There are ice cubes floating on the water. They rotate and collide in the water, making crisp sounds.

The snow in the lake also began to melt, and a thin layer of ice appeared on the lake. As the sun warms the ice, it melts away quickly, revealing the clear water of the lake. The ice on the lake continues to crack, making pleasant clicking sounds, and the water ripples like a gorgeous ink painting.

The entire melting process is like a symphony of nature, with water droplets jumping and flowing, and the sound of water and sunlight intertwined.

Everything seemed to announce that the cold was gone.

In some rivers and lakes, the originally frozen lakes and rivers occasionally have zombies thawed and drifted with the current.

If there were no zombies, the world would still look very beautiful.

Unfortunately, this beautiful scene of melting snow was polluted by zombies.

Big camphor tree base.

The snow, several meters high, is slowly getting lower every day.

At a speed visible to the naked eye, the trees are getting taller and the ground is getting lower.

On this day, Li Yu found drainage engineer Xu Zhen and asked him to lead people to inspect and improve the drainage system of the entire base.

Every day recently, as the snow melts and turns into water, there is some water accumulation in the inner and outer cities.

Especially on the other side of the mountain forest, the melted snow and small depressions converged into creeks, and then converged into a relatively wide river, which completely exceeded the height of the ditch and filled it out.

Even Li Yu and the others wear water shoes and walk on the road in the water.

The snow melted very quickly, less than half of it melted in just two days, and as the temperature increased, the melting speed became faster and faster.

Xu Zhen was wearing water shoes, with sweat on her forehead, and came outside the greenhouse. Li Yu was also here to help. In recent days, the snow has melted rapidly, causing water on the ground to flood everywhere.

For example, outside the greenhouse, after daily shoveling by snow plows and many non-staff collaborators, there was not much snow two meters away from the greenhouse.

However, two meters away, there is some snow up to five or six meters thick.

This snow melts very quickly and will soon spread over the greenhouse.

However, the greenhouses were built strong enough and had strong sealing properties, so they were not flooded at once. Only two greenhouses had water seeping into them, and there were no problems with the other greenhouses.

Li Yu, who had wet hands and was wearing water shoes and trousers, patted Xu Zhen on the shoulder and asked: "Xu Zhen, why do you feel that the drainage is not working? It seems like everything inside and outside our base is flooded! "

Xu Zhen wiped the sweat from her forehead and said to Li Yu with a wry smile: "We are walking through culverts, which are cement pipes installed underground. The sun is exposed on the ground, and the weather is getting warmer, so the surface temperature recovers quickly, so Snow on the ground melts quickly.

But underground, there is no sunlight, so in some places in the drainage pipes, the ice has not yet melted, causing some pipes to become blocked.

However, Mr. Li, it won't take long, with the current temperature, it will be completely unblocked by tomorrow at most, and then there will be no problem. "

Li Yu frowned and said: "If you say so, there is still a problem with the drainage system. Now that the problem is exposed, you have to find a way to solve it.

In addition, look at this time, the snow is melting quickly, and so much water has accumulated in just a short time, which shows that the drainage system is still not perfect, that is, there are not enough outlets and not big enough.

If there is a heavier rainstorm in the future, will it be easily flooded?"

Xu Zhen wiped the sweat from her forehead. She didn't know whether it was because of nervousness or because she ran over too fast just now.

Facing Li Yu's somewhat harsh criticism, he nodded quickly and said: "Mr. Li, I was wrong. I will find a way to clear the drain now.

After unclogging, I will upgrade the drainage system again. Make sure it is not affected by ice, snow or heavy rain. "

Li Yu saw that he was a little nervous and admitted his mistake, so he did not ask him for responsibility anymore, and his tone slowed down and said: "Have a good snack. Now our drainage is mainly towards the cliff. You should pay attention to safety and also Hurry up, the rain is coming soon, maybe it will rain a lot.

After the upgrade is completed, I will come and check! "

Xu Zhen nodded again and again, expressing that she would definitely do well.

Only then did Li Yu let him leave.

After Xu Zhen left, Li Yu continued to block the door of the greenhouse with the sandbag in his hand.

The greenhouse has to be entered every day, but when they open the door of the greenhouse, water will leak in.

So they used sandbags to keep the stagnant water out.

A vacuum and water-free area is formed at the door of the greenhouse.

Dozens of sandbags have been piled up outside the warehouse entrance to prevent water from flooding inside.

When the underground warehouse was originally built, various factors were taken into consideration. Therefore, when building the entrance to the base, it was raised two or three meters outside, and a step was made before going down.

At this time, the two or three-meter steps came in handy. Some sandbags were placed on both sides of the steps to prevent water from flooding in when the steps were higher than the steps. These sandbags could block the accumulation of water.

Li Yuan and Li's father stood on the steps, watching the stagnant water closely.

The door of the warehouse inside was tightly closed. In fact, even if water came in, as long as they didn't open the door, the water would not be able to break through the two doors and enter.

Li Yuan sat down bored, sitting on the steps, staring at the stagnant water in front of him in a daze: "Dad, why hasn't the sewer been connected yet?"

Father Li looked at his daughter and put the iron bucket in his hand on the ground. He told his daughter that the ground was cold, but they had been standing here for a long time, and it was normal for them to be tired.

So he pushed the iron bucket over, patted the iron bucket and said to his daughter, "Sit on it."

Li Yuan didn't refuse, brought the iron bucket over, and sat on it.

Under Li Yu's urging, Xu Zhen and Deng Ben rushed to the base's sewer to clear it.

When Li Yu was building the base, in order to ensure the stability and sealing of the base, drainage outlets were installed around the wall. Except for the side near the cliff, the foundations of the other three walls were drilled for more than ten meters. Soil watering.

In this way, even for outsiders, it is unrealistic to dig a tunnel to get in. It is very difficult at a depth of more than ten meters.

"Come here with an iron rod, it's still ice inside, take an iron rod and poke it!" Xu Zhen said to the cannon beside her.

Da Pao also rushed over to help. Hearing what Xu Zhen said, he ran to the steel factory without saying a word and took out a huge long iron rod.

He couldn't move it by himself, so he called Yang Tianlong, and the two of them held the iron rod and brought it to Xu Zhen's side.

"Put it in! Let's work together to find a way to speed up the melting of the ice inside!" Xu Zhen shouted.

The cannon inserted a long iron rod into the water, and then everyone took the iron rod and stabbed it hard.

Five or six people worked hard together.

As long as there is a small gap, the back can flow quickly, and it is afraid that it will be completely blocked, and then a sealed environment will be formed, and it will be more difficult for water to come out.

"Hey Yo! Hey Yo! Hey Yo!" Everyone shouted while poking inside.

Click!

It seemed that the middle layer of ice had been pierced, and what followed was.

Sizzling——

Looking at the surface of the water, it is slowly rotating and whirlpooling.

It's done!

shouted the cannon.

After solving this problem, Xu Zhen didn't stop, and continued to walk to another drain.

The snow is too thick and the temperature rises suddenly. The snow on the surface of the ground melts, but the ice underneath does not melt so quickly, resulting in water accumulation on the surface, but it cannot be drained underground quickly!

After this lesson, Xu Zhen secretly made up her mind to re-improve the drainage system of the base.

Xu Zhen led the people to continue to dredge the other six drains one by one.

At three o'clock in the evening, all the water outlets were cleared.

Crash--

On the other side of the cliff, several huge water outlets continuously discharge the stagnant water in the base.

In the water outlet, some iron railings are also set up. These iron railings are used to prevent people or zombies from slipping in from outside.

The accumulated water in the base decreased at a speed visible to the naked eye.

Seeing this situation, Li Yu was slightly relieved.

However, in order to maximize the sealing of the fence, the base was built like a copper wall and an iron wall. However, I did not expect that there would be problems if the sealing was too high.

Xu Zhen was deeply aware of this problem, and sat in a daze at the drain that night.

The drainage in the base is very smooth, including the water flowing down from the mountains, industrial waste water, domestic water, etc., and the ditches set up are very smooth.

But this time the problem that was exposed was that the sewer was frozen in freezing weather. Xu Zhen looked at the drain and thought about it.

Suddenly, he remembered the problem that Li Yu had been explaining to him, the problem of heavy rain.

During previous rainstorms, his improved drainage system had not had any problems.

Only this time, freezing in a blizzard, something went wrong.

He thought, if faced with a heavier rainstorm, can the drainage speed of these pipes be achieved.

After thinking for a long time, he didn't know that the main displacement was related to two aspects.

The speed of the water flow, and the diameter width of the drain.

This is difficult to calculate.

So Xu Zhen started to think and act around two problems.

1. In the case of greater precipitation, how to make sure that there is no water in the base.

2. How to solve the embarrassing period after the temperature rises when the sewers are frozen in extreme cold?

Around these two problems, he began to upgrade the drainage system of the base again.

the next day.

Most of the stagnant water in the base has been drained.

There are also some ice cubes that have not completely melted, and they are slowly melting at this time.

The lake water in the mountain pond also melted. Li Yu watched by the lake, and could occasionally see some fish wandering in it.

In fact, fish in winter can survive even at tens of degrees below zero.

The reason is not how resistant they are to freezing, but because after the ice freezes, a relatively high temperature will be maintained under the ice, which is isolated from the outside temperature, so the fish can still stay alive.

Three days later.

In the greenhouse, the first batch of crops are ripe!

Everyone ushered in the harvest!