In 1964, Yan Jiecheng went back and forth between home and college every day as before.
Occasionally I go to see Luo Gong and hang out with my father-in-law.
Until February 14th, Yan Jiecheng was picked up by a military vehicle early in the morning.
When they arrived at their destination, Yan Jiecheng found that it was a military camp with many sentries around and the defense was very tight.
When more and more people arrived, Yan Jiecheng and the others were taken to a large auditorium.
After a while, everyone arrived and everyone sat down according to their names at the table.
The head of the military region also arrived.
As the commander-in-chief, he first announced the official launch of the Beijing subway project today.
This project was defined as an advanced confidential combat readiness project, so it was named Project 401.
The commander-in-chief read out the various cooperating units, as well as their responsibilities and responsible persons.
Because of his rich construction experience, Lao Xie was promoted this time and was appointed director of the Beijing Metro Engineering Bureau of the China Railway Corporation.
Yan Jiecheng was appointed director of the design department of the command headquarters, equivalent to the chief designer in later generations.
Responsible for the overall design plan of this project.
Their department is composed of some experts from the Ministry of Geology, the Beijing Military Commission, major professional colleges and universities across the country, and the China Railway Corporation.
It covers seventeen majors, including communications, signals, surveying, water supply and drainage, rolling stock, and electric power.
The entire design department has a total of more than 1,200 employees, which is extremely large.
The groundbreaking ceremony was held in the afternoon, and there were no loud gongs, drums, or flags waving throughout the process.
What surprised Yan Jiecheng was that Comrade Lao Chang personally presided over the groundbreaking ceremony. He personally picked up a shovel and broke ground for the subway.
However, due to the confidentiality of the combat readiness project, the media was not invited to report on it.
The Beijing subway started construction mysteriously.
There were very few vehicles on the road at that time, and the construction would not have much impact on traffic.
Residents were not even aware that a subway was being built.
Of course, it may also be because the design plan has not been released yet.
Only Yan Jiecheng and the others started construction. In order to conduct experiments, they first dug two shafts to observe the groundwater conditions.
After the ceremony, someone came to give Yan Jiecheng and his department confidentiality training.
Design drawings, data, etc. are the core materials of the design department, and ordinary people are not allowed to have access to them at all.
The headquarters stipulates that the construction technicians of each bid section can only get their own drawings, and the general drawing cannot be seen.
Moreover, technicians must strictly register the drawings they receive. After the construction is completed, no matter how worn out the drawings are, they must be returned in full.
Because everyone knows that even if you cannot see the general drawing of the entire project, knowledgeable people can still calculate the protection level of the entire subway project based on individual data.
In addition, Yan Jiecheng does not need to worry about the organization and archiving of data.
The command headquarters arranges a special public security department to take charge.
The headquarters also stipulated that after the design department completes the design, the designers must hand in their design drawings and work diaries according to the page number.
The level of confidentiality was so high that Yan Jiecheng was stunned.
The Beijing Metro is a main channel project for combat readiness protection and evacuation of people.
Yan Jiecheng looked at the construction plan and the top leader personally gave important instructions: "Design carefully and construct carefully. There will definitely be many mistakes and failures during the construction process. Please pay attention to corrections at any time."
I was very moved in my heart. If I make any omissions at work in the future, I will be scolded as a fool by my boss.
If the leaders were so considerate, he, Yan Jiecheng, would not have been so stupid in his previous life.
Under the design policy of focusing on combat readiness and taking into account transportation, Yan Jiecheng led the design department to start a violent attack on the Beijing subway.
The first question before everyone is: should the entire Mao Xiong subway be buried 60 meters underground, or should it be buried shallowly 20 to 25 meters underground like in most Western countries?
Of course, the safety of deep burial is better, but the geological conditions in Beijing are somewhat complicated.
Just like what he said to Vice Minister Lu before, the conditions don’t allow it!
During this period, the debate about deep burial and shallow burial also went through many twists and turns.
Although there is data support from the geological exploration work of the 911 Brigade of the Ministry of Geology, which is responsible for the subway construction, it is difficult to determine the deep burial.
However, under the general principle of giving priority to combat readiness and taking into account transportation, it was finally decided to bury it deeply.
Yan Jiecheng could only grit his teeth.
After the plan was finalized, everyone began to design the deep burial plan.
But in mid-June, the geological exploration produced new results.
According to the latest survey data, the underground rock formations in Beijing have thick and broken weathered layers, and the actual burial depth of the subway will exceed the originally estimated depth.
The depth of the subway station will reach 160 meters, while the depth near the Red Temple will reach 200 meters, which is equivalent to a height of 60 stories.
At this time, everyone discovered that the difficulties were far greater than previously expected.
Yan Jiecheng had no choice but to conduct experiments first.
The engineering bureau was asked to drill two shafts, but when the shafts reached 50 or 60 meters, they could no longer continue.
The groundwater is so large that it is almost impossible to pump it clean, and the subway will be flooded.
Under this situation, Yan Jiecheng had no choice but to ask his leadership for instructions. After a week of discussion, he finally chose shallow burial.
In order to strengthen the tunnel's prevention and control capabilities, Yan Jiecheng suggested adding an explosion-proof covering layer of about 1 meter about 20 meters above the ground.
Like a big hat, it protects the subway from aircraft bombings and other impacts.
According to Yan Jiecheng's calculations, this can withstand intensive bombing by aircraft for one hundred hours.
The leather is very solid, and for military purposes, there is no problem at all.
In the past half year, Yan Jiecheng has been going out early and coming back late all day long, like clockwork.
Fortunately, this project was confidential, but the command did not restrict their personal lives, and he could still go home at night.
Just to improve efficiency, Yan Jiecheng no longer refused the car assigned to him by the headquarters.
Because the organization regraded him in May, Yan Jie was finally graded to administrative level 13 according to the practice of cross-cutting the job level and the grade line.
Of course, his rank was just higher, but his job level was not improved.
Until now, he is still a division-level cadre, but he only enjoys the treatment of senior cadres.
This was a normal thing in the early days of the founding of the People's Republic of China.
Some people, even though they are officials in ministries and commissions, are administrative level 10 or 11.
Therefore, he is considered a senior cadre, and his treatment is much better than before.
Now, he supplies 15 jins of meat, 4 jins of eggs, 2 jins of sugar, 2 cigarettes, 5 jins of soybeans, 5 jins of cooking oil, 10 jins of chickens and 20 jins of fish every month.
In addition, during the three holidays of May Day, National Day and New Year's Day, 3 pounds of meat, 2 pounds of eggs, and 1 pound of sugar will be subsidized, and the subsidy will be doubled during the Spring Festival.
In addition to these, bread and biscuits still have to be purchased with tickets and are charged at flat prices.
Pastries and fruit candies are all priced at a high price.
Of course, there are no limits on fruits, vegetables, seasonings, etc., and they are supplied according to supply conditions.
Anyway, compared with before, Yan Jiecheng felt that he was a big landlord now.
Chang Kexin was also very happy when she knew this.
Although Lao Chang enjoys the treatment of secretary, chef, nanny, waiter, driver and private car.
That black Jim represents status when driven out.
None of these things were unusual to her, but after all, they were earned by her husband, so she felt extremely happy.
However, this car was a temporary car, so Yan Jiecheng did not bother others and directly rejected the arranged driver.
This is a Jeep made in a certain country in Eastern Europe. It has a big butt and looks very ugly.
He asked the driver to introduce it to him, practiced a few casually, and then he was on his way.
This shabby car doesn't have an air conditioner. It's summer and it can heat a person to death.
The car window glass still moves back and forth, so if you smoke a cigarette accidentally, cigarette ashes will be flicked into the car.
At around ten o'clock that night, Yan Jiecheng drove home from the headquarters.
As soon as I arrived at the door of my house, I heard the dog in the yard start barking.
Yan Jiecheng opened the door, and a dark figure rushed towards him.
Yan Jiecheng saw his dead dog rushing up to him, touched the dog's head and said, "Hey, little Hei, go and play by yourself."
After Yan Jiecheng finished speaking, the dog walked away.
Yan Jiecheng thought to himself: This dog is indeed spiritual. Li Chu from the alley next door did not lie to me.
He asked for this dog from Li Chu, the director of the Traditional Chinese Medicine Department of the general hospital who treated him before.
It was only in March that Yan Jiecheng found out that the guy lived in a small courtyard in the alley next to his.
One evening Yan Jiecheng met him walking his dog. He heard that his dog had given birth to a litter, so he shamelessly asked for one.
He has had it for several months now, and this dog is indeed as smart as he said.
Yan Jiecheng approached the inner courtyard and saw that the light in the study was still on.
Yan Jiecheng bolted the door from the inside and headed towards the study.
Chang Kexin in the study knew that her husband was back when she heard the dog barking.
At this time, the study door was opened and he walked out.
Said: "It's so late today, when will you finish?"
Yan Jiecheng heard Chang Kexin's complaint and comforted him with a smile: "It's coming soon."
Although Chang Kexin didn't know what Yan Jiecheng was busy with during this time, she knew what the major project was after thinking about it.
Otherwise, Yan Jiecheng would not have mentioned it at home.
Knowing the rules of confidentiality, she didn't ask too much.
But like most wives, her husband comes home late every day and always complains.
The two came to the living room, and Yan Jiecheng lay on the sofa a little tired.
Chang Kexin poured him a glass of water and snuggled beside him.
"Is my little sister asleep?" Yan Jiecheng asked.
Chang Kexin said: "This girl has gone to bed very early in the past few days. She has slept for more than two hours now."
After speaking, Chang Kexin rubbed Yan Jiecheng's face and said, "I'll show you something."
Then he took out a piece of paper folded into a small piece from his trouser pocket and handed it to Yan Jiecheng.
Yan Jiecheng spread out the paper and saw it was a checklist.
He said casually: "Who is pregnant? She is already five weeks pregnant."
After saying this, Yan Jiecheng suddenly felt excited, stood up immediately and asked: "Kexin, are you pregnant?"
Chang Kexin raised her head, looked at Yan Jiecheng arrogantly, and nodded.
After Yan Jiecheng received the confirmation, he happily picked up Chang Kexin, smiling like a child weighing two hundred pounds.
After Chang Kexin was reminded to be careful with the child, Yan Jiecheng carefully put Chang Kexin down.
Then he walked around the living room, muttering: "What should I call this child?"
Zihan, Zihan, Zihan, Zihan, Zihan..."
The couple thought about a name all night, but still couldn't decide.
The next day, both of them need to go to work. Yan Jiechen originally thought about sending his wife to work, but Chang Kexin refused.
I had to put fruits, candies, and other snacks in her bag.
Yan Jiecheng kept telling his wife not to forget to eat.
He said it several times, but after being rejected by Chang Kexin for being so long-winded, he stopped talking.
Yan Jiecheng also remembered that in this era, women could really hold up half the sky.
Not to mention resting during pregnancy, confinement period is only seven days.
So Yan Jiecheng could only watch his wife riding a bicycle to work with her long legs.
Seeing that it was still early for work, Yan Jiecheng thought of stopping by the courtyard to talk to the two elderly people at home.
As for my father-in-law, I can just make a phone call after I get to work.
When we arrived at the Siheyuan, it was just when people were going to work. Everyone was very curious when they saw the car parked at the entrance of the Siheyuan.
Seeing Yan Jiecheng get out of the car aroused everyone's gossip mentality.
Everyone came over one after another to say hello and make friends with Yan Jiecheng.
Yan Jiecheng listened to the constant compliments in his ears. Although he was a little bored, he had to respond with a smile.
After all, this is what Chinese people are used to.
If he dared to show any impatience.
In the afternoon, Yan Jiecheng's arrogant words would be spread throughout several alleys.
After dealing with everyone, Yan Jiecheng hurried home.
Yan Bugui is not ready to go out for work yet. After all, he is a person with a bicycle. The road is faster, so he leaves a little later than others.
Seeing Yan Jiecheng coming early in the morning, the couple thought something had happened.
He quickly asked: "Boss, why did you come here so early in the morning? What happened?"
Yan Jiecheng smiled and said: "Mom, it's okay. I came here just to tell you that Kexin is pregnant."
After hearing this, the third aunt quickly said: "Really?"
Yan Jiecheng quickly reassured him, and then the third aunt believed him.
Standing there, clasping his hands, he said, "Thank you to my ancestors for making my eldest daughter-in-law pregnant."
Seeing his mother like this, Yan Jiecheng thought: Your son earned it through hard work every night. What does it have to do with his ancestors?
After Yan Jiecheng finished talking about the business, he didn't stay any longer. He said goodbye to his two elders and went to work.
When Yan Jiecheng went to work today, the first thing he did was to call his father-in-law and tell him about Chang Kexin's pregnancy.
After that, they began to review the drawings sent by the Tunnel Design Office of the Design Department.
Now all the tunnel design drawings for the first phase of the project have been released.
As long as Yan Jiecheng reviews and signs, the construction can begin according to the drawings.
Looking at these drawings, Yan Jiecheng was very satisfied.
This drawing is very detailed and takes into account all aspects that need to be considered during construction.
Moreover, this design is also very fast. This makes Yan Jiecheng the happiest.
However, near noon, Yan Jiecheng discovered a big problem.
Yan Jiecheng looked at the drawings, and suddenly a cold sweat broke out from his back.
Because he discovered a big flaw in the tunnel design.
He found that all the design drawings did not take into account the tunnel penetration error.
This means that if construction is carried out according to the drawings, the cross-section positions of two or even several construction sections that are started separately may be staggered when they are finally connected, and the entire tunnel will not be able to be connected in a straight line.
In later designs, this penetration error should have been included in the calculations.
However, due to lack of experience, the tunnel design department has underestimated the design by nearly 20 centimeters.
Don’t underestimate this mere 20 centimeters. If it is not included, the width and height of the tunnel will be insufficient. In the future, the locomotive may hit the wall or equipment, and the track will not be paved.
In other words, what they call professionally is that the limits are narrow.
Yan Jiecheng quickly called Professor Jin, the head of the tunnel design department, and explained the matter to him.
Professor Jin was also shocked.
But when the news reached them, many people immediately questioned it and did not believe Yan Jiecheng's judgment.
At first, everyone was a little unconvinced by Yan Jiecheng's appointment as chief designer, but now that he has denied everyone's hard work over the past few months, they can't stand it anymore.
Some ugly words started to be said.
Having no hair on the lips and being weak in doing things are considered minor.
Yan Jiecheng also heard these words, but he didn't pay too much attention.
After all, in this life, there are rivers and lakes everywhere.
He was just thinking of ways to intuitively prove this problem.
