Chapter 673 Drainage system problem! [Please subscribe for more monthly tickets]
February 17th.
There are still two days until rain.
Big camphor tree base.
The morning sun comes out very early.
The sun is shining brightly these days, and the temperature rises very quickly during the day.
During the hottest time of the day, it can reach 18 or 19 degrees Celsius.
And at night, it will return to only two or three degrees.
On the concrete floors in the inner and outer cities, the rice was still placed on it to be exposed to the sun.
Some people took wooden rakes and raked over the rice to rake out some of the rice.
After being exposed to the sun all afternoon and air-drying all night yesterday, there are basically no water stains on the cement floor.
If there are a few more sunny days, these grains can be dried.
In the inner city.
Li Yu is discussing with Xu Zhen about the core drainage outlet.
"How is the drainage system upgraded now?" Li Yu looked at Xu Zhen and asked.
Xu Zhen pointed to the inner and outer cities and said: "In the past two days, I have installed additional water pumps in places where water is prone to accumulate, so that the water can be discharged faster.
In addition, the height of open spaces around warehouses and residential areas is lowered, which can effectively accommodate stagnant water and protect surrounding buildings. If the previous situation occurs again in the future, there will be no problem.
Now we only need to make some adjustments to the water outlet, expand the water outlet, and dredge the water channel, and then there will be no problem."
Li Yu looked at the deep drain and said, "What are you going to do?"
Xu Zhen thought for a while and said: "I went to see it yesterday. The iron railing at the drainage outlet outside the base had some sediment, leaves, stones and other things deposited on it, which blocked the outlet over time. It must be opened!"
Li Yu frowned and said: "Open the railing. Although it is impossible for zombies to climb up the cliff now, what if the water level below the cliff rises? During the dry season, I don't think that place is safe if there is no obstruction.
In short, no matter what, there must be an iron railing over there for protection."
Xu Zhen was a little helpless. The drainage outlet of the Da Zhangshu base was on a cliff, and the top of the cliff was a full 79 meters above the ground.
The water outlet they built is at a height of 72 meters.
The snow has melted in the past few days, and the water level under the cliff has risen to nearly 20 meters, forming a small lake.
Below the cliff is a depression, which is more than 40 meters shorter than the mountain forest next to it. However, at such a high location, if the water level under the cliff can reach this high, then the outside of the front door of the Da Zhangshu base will probably be flooded up to two meters.
It's three meters high.
The Da Zhangshu base is not at the same altitude. The side near the cliff is shorter and the side near the gate is higher.
The height difference between the highest location and the lowest altitude can reach 7 meters.
It is precisely for this reason that the drainage outlet in the base was chosen on the cliff side, which can save construction costs by adapting measures to local conditions.
Hearing Li Yu's determination, Xu Zhen really wanted to say that unless there was a terrible flood that only happened once in a thousand years, it was absolutely impossible that the other side of the cliff would be flooded to such a high height.
But he didn't dare.
Li Yu has told him twice, and he has also told Li Yu all the possibilities. Li Yu clearly expressed that he knew, but still persisted.
Xu Zhen could only frown and think hard.
Li Yu was not in a hurry and quietly watched him come up with a solution.
He didn't know how high the water would be flooded after heavy rains in the next few days, but he knew that he had to do his best to take all the protection, and the more he did, the better.
Even if the terrain at Da Zhangshu Base is relatively high and it is not flooded afterwards, what if it happens?
He doesn't dare to gamble!
Li Yu has been staying here, staring at Xu Zhen and trying to figure out a solution.
Under this terrifying pressure, Xu Zhen had a flash of inspiration.
Got it!
"I have an idea, Mr. Li. Based on your needs, I think we can bury a hidden line to control the outlet railing on the cliff side, use waterproof and insulated line materials underground, and use steel pipes on the surface of the line.
Material protection to prevent extrusion and compression.
Then, at the location of the drainage outlet, we can use waterproof material to make a switch and connect it to the base through lines, so that we can control the opening and closing of the iron fence in the base.
In addition, we can even install some cameras next to the drainage outlet, so that we can see the drainage outlet at any time. If there is sedimentation and obstruction of the drainage outlet, we will open the railing and close it after it is clear!"
Xu Zhen took a breath and hurriedly finished the flash of inspiration in her mind, fearing that she would forget it later.
Next to the two of them, Lao Lu heard the idea, thought about it for a moment, and asked: "As far as I know, there is a distance of dozens or hundreds of meters from the base wall to the edge of the cliff, and under the wall,
The foundation is completely sealed with concrete and poured to a depth of more than ten meters. If you want to lead a line there, you have to go through the drainage outlet.
Either we have to go above ground, which means we have to break through a five- to six-meter-wide wall. Of course, it’s the same underground. I feel like the construction is not a very simple task.”
Li Yu thought for a while and said: "There is no need to open another hole. Just run the line directly from the drainage outlet, make sure it is stable, and walk against the top of the drainage outlet hole. Xu Zhen, can this be done?"
Xu Zhen looked at the wellhead with a diameter of more than two meters and the flowing water inside. After thinking for a few seconds, she said: "No problem. Mr. Li, as long as the waterproof material and the door that controls the iron railing can be fixed, there will be no problem."
question."
"Okay!" Li Yu said with satisfaction.
Then let Li Hang and Ding Jiu come over.
Ding Jiu has been a contractor before, so he is very familiar with many building materials, and naturally knows how to make them and whether they can be made.
After hearing Li Yu's needs, Ding Jiu nodded slightly and said: "I have done this before. I took on a weird project before, which was to install some gorgeous lights at the bottom of the swimming pool. His pool has water all year round, and the lights installed below
, it has never been broken. It can be fixed, but I need someone to make the control system for opening and closing the door."
This chapter is not over yet, please click on the next page to continue reading! Li Hang studied mechanical and electrical maintenance in college, so he is naturally involved in this area.
He opened his mouth and said: "Okay, brother, I will ask He Bing and Zhou Ran to work on this system together later. It won't be a big problem."
Seeing the three of them solving the problem while chatting, Li Yu felt slightly relaxed.
Then he said to the three of them: "Okay, then you start taking action now, Xiaohang, on your side, go and fix the iron fence and control system now."
Li Hang asked: "Do you want to modify the original iron fence?"
Li Yu thought of the iron fence he made before. It had been used for two years. He didn't think much about it when he built the base. Now it's a little rusty.
So he said: "To make it again, my requirements are that it is waterproof and not easy to rust, and it must be stronger and more stable. Otherwise, if we press open in the base, the iron fence will not move at all, and we will be in trouble!"
Li Hang said seriously: "Okay, when will it be used?"
Li Yu glanced at Xu Zhen and said, "The sooner the better, tonight at the latest."
"In such a hurry?" Li Hang said in surprise.
He didn't understand why he had to be in such a hurry to do this.
Naturally, Li Yu would not explain to him that there would be heavy rains in the future, the dam would be submerged, and floods would come over.
So he explained: "This long-term snowstorm and the waterlogging caused by melting snow did not cause any damage, but it showed very big problems.
If there is a problem, we must solve it immediately without delay!"
To put it this way, it is in line with Li Yu's vigorous and resolute style and personality.
After calculating the time, Li Hang said: "It's a bit difficult. After all, it's not an iron railing. We also need to fix the wiring and waterproofing and heat insulation. We have the materials, but we don't have enough manpower. It's definitely not enough for just the three of us. We need more people."
"
Li Yu thought for a while, thinking about which manpower would be more suitable.
At this time, Ding Jiu said: "Mr. Li, Lao Zhou was a mechanic before. When I built a greenhouse last time, I felt that he was very professional."
When Ding Jiu said this, Li Yu suddenly remembered Uncle Qin and the others from the previous lathe factory.
So he said: "Okay, Lao Zhou, and ask Uncle Qin and the others to come over and help you."
There are more than 30 people in Lao Qin's group, all of whom have been transferred from the military. They used to work in a state-owned lathe factory, so there should be no problem in doing this.
Li Hang quickly said: "We don't need so many people, right? You can come here, it's faster. If they all come to help, it can be done in three hours, at most three hours."
Li Yu said happily: "OK, I will take a photo later, tell them about the situation here, and start working quickly."
"good."
After solving the problems with the iron railing control system and wiring, Li Yu said to Xu Zhen: "What now? Is there no problem?"
When Xu Zhen saw that Li Yu was so forceful and asked someone to solve the problem, she naturally nodded and said, "No problem."
"Okay, let's go over and remove this iron railing now, and then clean up all the sand and leaves inside." Li Yu said.
Lao Lu quickly said: "Mr. Li, please don't go in. Just let me and Lao Xu go."
Li Yu did not refuse and asked Xu Zhen to enter the inner city. In addition to his previous contributions, he was also asked to take charge of the drainage problem. He would definitely be the first to go.
You can't always be at the forefront of everything.
So he said: "Okay, let's act quickly now."
When Xu Zhen and Lao Lu heard this, they immediately changed their clothes, took tools and flashlights, and tied ropes around their bodies, and slowly went down to the drainage outlet.
The drainage outlets in the base will all converge into this square well, with culverts connecting everywhere underneath.
It was about seven or eight meters deep from the ground, and iron frames were set up on the walls of the well for them to climb down.
The current snow water has basically been drained out, so the water in the well is now very shallow, and they can go down without wearing oxygen bottles.
The reason for tying a rope to them was because there was a cliff leading out from the drainage outlet. If the iron railings were opened and their feet slipped, they would be doomed if they fell.
Xu Zhen stepped into the water. The water level was very shallow, barely above his ankles.
After he went down inside, he immediately turned on the overhead light. Under the light, he could see some moss growing on the wall.
tread--
Lao Lu also came down and stood at the bottom.
They looked at several water crossings nearby, which were drained from the base and were about 1 meter higher than where they were stepping.
With this arrangement, the height difference can be used to allow the water in the base to drain outside under the action of gravity.
"We're here!" Lao Lu shouted towards Li Yu and others above.
The well is deep and the sound echoes.
Lao Lu and Xu Zhen were in the well, and their ears were shaking.
"Okay, pay attention to safety." Li Yu said to them.
Then he watched Lao Lu and the two enter the drainage outlet leading to the outside of the base.
This drainage outlet is not very high, only two meters in diameter.
But it's enough for them to stand upright and walk.
From here, they went straight to the outside of the base.
From here, it was about a hundred meters away from the cliff. The two of them illuminated the lamp and walked forward slowly.
Sudden.
Lao Lu, who was walking in front, kicked something. He stopped quickly, took out a long knife from behind, and took a step back.
Then I picked the thing with a long knife.
Crash--
A piece of worn jeans, weighed down by sediment.
"Why are there jeans? Why would someone throw jeans into the sewer..." Lao Lu said helplessly.
When Xu Zhen saw this scene, she said speechlessly: "If you throw everything into the sewer, it will definitely be blocked!"
"Let's talk to Mr. Li." Lao Lu said.
Then he took out the walkie-talkie and talked about this matter with Li Yu.
When Li Yu heard the news, he was slightly stunned.
I felt a little angry in my heart, who the hell threw this!
I have made up my mind that after the drainage system is completed, I must talk to everyone in the inner and outer cities and emphasize this matter.
This chapter is not over yet, please click on the next page to continue reading! "Okay, I understand, what's going on inside you?" Li Yu asked with a walkie-talkie.
As Lao Lu walked, he saw a raised object in front of him. He opened it and saw that it was a can. Moving forward, he saw various rags, plastic bags, and a lot of garbage.
"This sewer has almost turned into a garbage dump!" Lao Lu said.
"Uh" Li Yu was silent, definitely this matter must be raised to a higher level.
Don’t throw garbage into the sewer! Once anyone does this again, they must be severely punished!
I was very happy in my heart. Fortunately, they were allowed to go down to check this time. Otherwise, when heavy rains and floods came later, drainage problems would arise, which would cause huge trouble to the base.
Xu Zhen's face didn't look good either. Last time the drainage system in the base was upgraded, she didn't expect there to be so many hidden dangers.
So he took out the walkie-talkie and said to Li Yu: "Mr. Li, I think there is one more thing to do, which is to set up a garbage cleaning system on the other side of the well and use iron bars to block it if there is garbage."
Xu Zhen talked a lot about the drainage system that relies on urban management.
Including open ditches and culverts, rainwater and sewage diversion, etc.
Li Yu pondered for a while and said to him: "What you said can be done. The most urgent task now is to solve the problem at the drainage outlet first."
Only then did Xu Zhen give up.
Lao Lu continued to walk forward.
Soon, he saw the light in front of him.
Ten meters ahead is the water outlet of the cliff.
Chirp——
Lao Lu didn't know what he stepped on and slipped.
Ouch!
Lao Lu slipped and stood up.
Looking at the position just now, I saw a round shell, bigger than the basin.
Lao Lu then picked at it with the long knife in his hand, but did not move it.
Um?
What is it?
Lao Lu shined a flashlight on the object, and then.
A turtle's head was exposed.
"Hey! So it's you! Why are you here?" Lao Lu knew this turtle.
When we were fishing in the lake, we found a big turtle, and everyone in the base knew about it.
Li Yu even placed the turtle in a cave.
Later, when there was a blizzard, I didn't see it for a while.
The people in the base searched for it for a long time but failed to find it. Now they found it in the sewer.
Turtles are not mammals and cannot be infected with zombie viruses.
So Lao Lu kicked it with his feet and said with a smile: "Old guy, I will carry you back later. You are also very lucky. You can survive in such a cold weather. You are awesome!"
Xu Zhen looked at the turtle and was amazed.
The two of them continued walking.
Soon, they reached the edge of the cliff.
There was a lot of garbage and sand deposited on the cliff mouth and on the iron railings.
These are all blocked by railings.
"I'll take a photo." Xu Zhen said, motioning for Lao Lu to step back.
Lao Lu took a few steps back slightly and made room for Xu Zhen.
Xu Zhen took out her mobile phone, took a few photos at the iron railing, thought about it, and recorded a few videos.
Since the railing side is connected to the outside, the light is very bright and the illumination is very clear.
After Xu Zhen finished taking the photo, she took out the walkie-talkie and said to Li Yu: "Mr. Li, we are already here. Should the iron railing be removed directly? If it is still needed, we can pull the rope from the top and I will tie him up."
, you guys pull it up. You definitely can’t get through it through the sewer.”
After hearing this, Li Yu immediately replied: "Okay, keep it, you two wait for us."
Then he said to Ding Jiu, Li Tie and a few people following Lao Lu: "Let's go to the cliff from the back door now and drive a truck to pull things there."
"Okay, Mr. Li." one of them said.
"Oh, by the way, Tiezi, you go to the warehouse and get three cameras. There should also be several surveillance cameras at the water outlet there. We didn't put them up before." Li Yu remembered and said to Li Tie.
Li Tie nodded and said: "Okay, big brother, you go there first, and we will come back later."
After saying that, he took two people and went to find Li Yuan.
To open a warehouse, you must find Li Yuan.
Li Yu also informed Li Yuan to get them some cameras.
After explaining all this, Li Yu, Lao Xie and others drove out from behind in a pickup truck.
Li Yu wears a bulletproof vest whenever he wants to go out, even if he is just outside the wall.
Li Yu was carrying a gun and sitting in the passenger seat of a pickup truck.
Go out the back door.
Yang Tianlong, who was in the duty room at the back door, saw Li Yu and asked about it.
After the pickup truck went out of the back door, it turned a corner and drove another 400 meters until it came to the wall in the direction of the cliff.
In this direction, a duty room is also set up.
The scenery in this duty room has always been better.
Seeing Li Yu and the others going out, Song Qi and Shang Xueer in the duty room toward the cliff saw them and greeted them one after another.
