The Boss of the Yan Family in Siheyuan

Chapter 262 Thunder, heavy rain in spring
You must know that in this era, concrete technology was not as mature as in later generations, and there were not so many types of concrete.

There is no specialized and mature proportioning plan provided by their project.

The ratio of the concrete was decided after their research and discussion. No one dares to guarantee the actual effect.

For the concrete mix design work, Yan Jiecheng and others first analyzed the pier structure and component characteristics of the project.

Possible adverse situations and risks were estimated and based on local raw materials.

Then adopt scientific, reasonable and feasible technical lines and technical means.

Only in this way can we prepare high-quality concrete that meets the design requirements, construction process requirements and usage requirements.

This will depend on the test results. Obviously the ratio plan we designed is successful.

The production of this concrete is not like home and cement. If there is too much water, add ash, and if there is too much ash, add water.

When Yan Jiecheng and his colleagues prepared the concrete, they took into account the requirements for workability, strength, durability, etc. of the bridge pier project.

We also inspected several local sand and gravel plants before finally selecting the appropriate raw materials.

In order to determine the mix proportion, the purpose of economic applicability is combined with the design strength of the bridge pier.

According to the requirements of the water-cement ratio law, the absolute volume method is adopted.

When producing concrete, the amount of cement used is crucial.

It directly affects the bonding force between cement mortar and aggregate.

In order to increase the proportion of colloidal binder in the mortar, the cement content should be higher, but the cement dosage should not be too high, otherwise it will cause problems such as excessive heat release or excessive shrinkage during hydration.

Therefore, the headquarters experimented with several mixing ratios from the very beginning.

Finally, it was decided to use this plan with a cement dosage of 480kg/m3.

On this day, Yan Jiecheng was in the command room of the headquarters inspecting the project progress reported on various sites.

At this time, Chen Hanliang came in and said: "Director, the Meteorological Bureau just called and said there will be heavy rain tonight."

After Chen Hanliang said this, most people in the entire command room stopped working and looked at Yan Jiecheng.

These people are all old engineers and naturally know what this means.

Yan Jiecheng was also surprised when he heard the news.

After coming back to his senses, he immediately said: "Notify everyone of the meeting."

Within ten minutes, relevant personnel from the headquarters had arrived at the scene.

When Yan Jiecheng saw that everyone had arrived, he said: "The situation is urgent, I will keep it short.

The Meteorological Bureau just issued a notice.It is said that there will be continuous heavy rain starting at 23:[-] tonight.

In response to this heavy rainstorm, we immediately launched a heavy rain emergency plan.

Okay, starting now, everyone should hurry up and notify every production site. "

After Yan Jiecheng finished speaking, everyone started to implement the relevant procedures of the emergency plan.

Yan Jiecheng said to Chen Hanliang: "Secretary Chen, help me record it.

First, at the bridge pier site, it is necessary to confirm that the intercepting ditch must be dug to prevent floods from rushing into the foundation pit.

The edges of the construction site should be checked repeatedly to see if there are any landslides, landslides, or other threats to the construction site.

Second, immediately confirm whether the excess spoil beside the protective slope ditch has been cleared away to reduce the pressure on the top of the slope.

Immediately inspect pits, trenches, ditch slopes and solid wall support structures.

If you find any dangerous signs such as cracks, looseness, broken support structures, or movement on the slope, take immediate measures to solve it.

Third, it must be ensured that all construction machinery is evacuated from the work site and parked on cement-hardened ground.

Equipped with drainage facilities such as submersible pumps to ensure timely drainage and prevent foundation pit collapse.

On-site materials must be reinforced and placed, and rain-proof measures must be taken.

All cement must be moved to the warehouse and covered with tents.

If anyone lets the cement get wet in the rain, I will remove him from his post.

Fourth, immediately stop scaffolding erection and dismantling operations.Cantilevered frames and attached lifting scaffolds must be reinforced quickly, and connectors or ties must be set between the frame and the building according to the height of the frame.

For on-site pouring operations, only concrete that has been mixed is allowed to be poured, and re-mixing is not allowed.

Fifth, we must ensure that communication and power equipment are normal.

The main distribution box, distribution box, and switch box must be taken as soon as possible to take reliable rainproof measures, and the welding machine must be equipped with a protective rain cover.

Immediately send someone to check whether the lighting and power lines are mixed or leaked, and whether the poles are corroded or loosely buried to prevent electric shock.

Check whether the zero connection and grounding protection measures of the on-site electrical equipment are reliable, whether the leakage protection device is sensitive, and whether the wire insulation joints are in good condition.

In addition, all barracks and dormitories at the construction site must be assigned special personnel to be on duty day and night.

Finally, notify the Security Department and let them be responsible for protecting those students.

Well, that's it. I'll sort it out quickly and send it to the production site. "

Then the entire command center became busy. Although the notice from the Meteorological Bureau came in time, Yan Jiecheng and the others did not dare to stay for a moment. Who knew whether the time predicted by the Meteorological Bureau was accurate.

After the task was assigned, Yan Jiecheng sat on the chair and silently thought about whether there was anything missing.

At this time, Zhang Baocheng, the deputy director of their institute, was also the commander of the Beijing section of the headquarters.

He walked up to him and said, "Director, don't worry too much, after all, the rain won't fall for another seven or eight hours.

After all, those present were veterans with rich experience in fighting in the north and south and strong organizational discipline.

Besides, we already have such a complete plan, and everyone knows what to do. "

Yan Jiecheng nodded and said: "Old Zhang, I understand the truth, I just want to do more and lose less.

Besides, if the Meteorological Bureau's report is inaccurate and the rain falls earlier, we will be caught off guard. "

After hearing Yan Jiecheng's words, Zhang Baocheng also became a little silent.

He had seen too many of these over the years.

When doing projects these days, in order to save money, everyone does not treat the construction site to the same high standards as later generations.

At many construction sites, the ground is reluctant to harden, and workers live in marching tents.

A few years ago, Zhang Baocheng was responsible for the electrification transformation of the Baocheng Line. During a heavy rainstorm, a station at the foot of the mountain was directly washed away by a mudslide.

Neither of them spoke and smoked two cigarettes in a row.

At this time, Yan Jiecheng said: "Old Zhang, I really want to go to the scene to see how they are preparing.

I'm afraid that some people will not take it seriously and rush to carry out construction, which will delay the important event. "

Although Yan Jiecheng is sitting here, his mind has already flown to various construction sites.

But as the commander-in-chief, he cannot leave here.He is here waiting for the construction site to report the results and make overall arrangements.

About an hour later, it was already seven o'clock in the evening.Chen Hanliang took two portions of rice and put them in front of them and said, "Director, Deputy Director Zhang, let's eat first."

Yan Jiecheng knew that there would be a tough battle ahead, so he smiled and said to Zhang Baocheng: "Comrade Baocheng, let's have dinner. Some people are probably going to be busy tonight."

Zhang Baocheng said: "I listen to you, Director. Let's have dinner. I'm sorry, Director Chen."

The two of them started eating. Yan Jiecheng was eating when he suddenly remembered something.

He said to Chen Hanliang: "Hanliang. Talk to the logistics and ask them to purchase a batch of ginger as soon as possible and let the canteen prepare it.

Someone will definitely get caught in the rain tonight, so don't catch a cold then. "

While Yan Jiecheng and the others were eating, Shao Wenwen was still driving the excavator on the bridge pier foundation pit excavation site, digging and digging vigorously on the large construction site.

Suddenly he saw his master, Camp Commander Ge, and gave her a hand signal to stop working.After Shao Wenwen saw this gesture, she immediately stopped the machine.

After jumping off the tall excavator, he quickly ran to Camp Commander Ge and asked, "Master, is Teacher Yan here again?"

Looking at this apprentice, Battalion Commander Ge said: "No, it was a notice from the headquarters saying that there will be a heavy rain tonight.

Therefore, all construction work has been stopped and handling will be carried out in accordance with the emergency plan for heavy rainstorms.

Now you need to dig a drainage ditch around the foundation pit to prevent rainwater from entering the foundation pit.

I will give you one hour. After one hour, you must drive the excavator to our construction site. "

When Shao Wenwen heard what Battalion Commander Ge said, she quickly imitated Battalion Commander Ge's salute and said, "Yes, master, I promise to complete the mission."

Camp Commander Ge looked at Shao Wenwen, who was happily climbing onto the excavator again, but also had a headache.

He felt that this student, this apprentice assigned to him by the headquarters was here to torture him.

Regarding Shao Wenwen, he couldn't say it but couldn't, and he couldn't beat her.

After he finished writing the inspection last time, he originally thought that Shao Wenwen would also give up the excavator after being criticized by the commander-in-chief.

Unexpectedly, a few days later, they would find him again.It is also said that once a teacher, a lifelong teacher.

She has decided to drive this excavator.

Camp Commander Ge was thinking, can't you just change it to someone else?

Camp Commander Ge watched Shao Wenwen get on the excavator and dig the foundation pit.I gave some instructions to a technician and construction soldiers next to me.

Let them call Shao Wenwen to retreat when the time comes, and don't mess up the emergency measures.

If there is a problem with this matter, it will not be a matter of the excavator being criticized, but it will be a big deal.

Therefore, he was afraid that Shao Wenwen would be out of tune, so he warned everyone in countless ways.

It was quickly past nine o'clock in the evening, and basic information had been fed back to all construction sites.

All flood prevention measures for the project have been completed.

Only a few construction sites are still undergoing intensive reinforcement and sorting.

Regarding this situation, Yan Jiecheng also breathed a sigh of relief.

After all, everyone can finish it all before 10:30 pm at the latest.

Zhang Baocheng on the side said: "Director, you can rest assured now.

To be honest, I really admire you for coming up with this method.

From now on, all our construction projects will have this kind of emergency plan.Then everyone will do things in an orderly manner, and there is no need to worry about things going wrong in this bad weather. "

Yan Jiecheng took a sip of tea and said with a smile: "Since ancient times, those who do not plan for the eternal life will not be able to plan for a moment; those who do not plan for the overall situation will not be able to plan for a corner.

Forewarned is forearmed, without prejudging the waste.

This is even more important when we are doing projects. "

After saying this, Yan Jiecheng felt that he was missing a white feather fan.

Zhang Baocheng doesn’t know whether it’s really a lot of emotion or whether it’s workplace performance art.

After hearing Yan Jiecheng's words, he seemed to be suddenly enlightened.

He shook his head and said: "Although everyone understands this principle, there may be very few people who can do it.

Director, what is admirable about you is that you are consistent in your words and deeds. "

After Yan Jiecheng heard this, he immediately felt that Comrade Lao Zhang was a good comrade.

Then, he pointed at Zhao Baocheng with a smile and said, "You always speak so nicely."

Just when these two people had begun to relax, smoke, drink tea and laugh.Suddenly a bolt of lightning flashed across the sky, lighting up the entire sky.

Yan Jiecheng and Zhang Baocheng immediately stood up and looked out the window.

At this time, a thunder exploded in people's ears.

Yan Jiecheng hurriedly walked out of the room, and suddenly heavy raindrops seemed to be poured down from the sky.

It made a crackling sound when it fell to the ground.

There was only one voice in Yan Jiecheng's heart: Damn it, this damn weather forecast is not accurate at all.

Yan Jie immediately went to the command room and said: "Everyone should contact each construction site quickly to see their specific progress and see if anyone needs help or support."

The only sounds left in the command room were various ringtones of phones and voices asking questions.

Everyone recorded the feedback information on paper and began to summarize it.

Half an hour later, the director of the headquarters office summarized the information and said to Yan Jiecheng: "Commander-in-Chief, except for the No. [-] and No. [-] construction sites, all other construction sites have completed the protection of finished products, and all personnel, vehicles and equipment have been evacuated from the work site.

At construction site No. [-], efforts are still being made to strengthen the retaining wall, so there should be no major problems.

It's just that at this No. [-] construction site, a foundation pit was just excavated this afternoon. The fencing and support have not yet been completed, and work is still being done. "

"It's nonsense. Tell them to evacuate the scene immediately and let them prioritize the safety of personnel and equipment."

Yan Jiecheng looked at the rain outside and saw that there was already water in the headquarters yard.

Yan Jiecheng knew that this kind of continuous heavy rain could easily cause floods.

This man is still working in the foundation pit. When the flood comes, will he still be able to survive?

At construction site No. [-], there were hundreds of people at a foundation pit.

"Quick, everyone, hurry up and support our evacuation. Hurry up, where are the steel pipes? Send the rails to the foundation pit quickly." Wang Yanhui, the person in charge of the No. [-] construction site, shouted to the commander.

The rain came so fast, completely beyond his expectation.

When he received the notice in the afternoon, he still thought that the foundation pit should be finished first, but unexpectedly, rain came right now.

He looked at more and more water on the ground and felt very anxious.

"Hurry up and put the rope into the foundation pit. Everyone working inside will tie one around their waists. When the time comes, the people above will pull it up directly."

"Idiot, why did you throw all the rope down?"

A young man of fifteen or sixteen lowered his head and said: "I, I, I... am nervous..."

Wang Yanhui shouted: "Old Liu, you idiot, take this brat to the camp. You dare to come here to join in the fun even if you don't even have all your teeth."

Squad Leader Zhang, hurry up and put the rope down. "

The phone in the headquarters was ringing constantly, but there was still no call from the person in charge of construction site No. [-].

Yan Jiecheng thought for a while and decided to go to the No. [-] construction site to see it in person.

Afterwards, Yan Jiecheng asked Chen Hanliang to arrange a car and prepare to go to the scene to supervise the process.

Chen Hanliang arranged the car, and after thinking for a moment, he called the deputy director of the Security Department.

The deputy director of the security department did not ride in the same car with Yan Jiecheng, but arranged a jeep with three soldiers.

Yan Jiecheng saw it and didn't say much.

After all, there was something going on, and he couldn't say anything more.

Chen Hanliang was afraid that he would be in danger.

In this extreme weather, the approach taken by Chen Hanliang and the security department was in line with the procedures.

Although Yan Jiecheng felt that it was good for him to reach out, he didn't need to.

But he didn't refuse, thinking that when he needed help at the construction site, there were many people who could lend a hand.

(End of this chapter)