"Weidong, I am a cadre of the Tangshan Regional Science and Technology Commission, the day before yesterday, that is, on July 14, 1976, the National Earthquake Administration held an experience exchange meeting on earthquake group measurement and group prevention in the Beijing-Tianjin-Tangbozhang area in our Tangshan. At this meeting, I heard astonishing news, which was put forward by Wang Chengmin, head of the North China Group of the State Earthquake Administration, who mentioned that there were abnormal phenomena in the Beijing-Tianjin-Tang-Bozhang (Beijing, Tianjin, Tangshan, Bohaiwan, and Zhangjiakou) areas, and predicted that between July 22 and August 5, there will be earthquakes of magnitude 5 or higher in the Beijing-Tianjin-Tang-Bozhang area, and that in the second half of the year to next year, there may be earthquakes of magnitude 8 in North China. He asked everyone to pay attention to the earthquake after they returned. Qinglong County Science and Technology Commission also introduced the earthquake information of their county from two aspects at the meeting, the first is the two earthquake group measurement points of Qinglong Middle School and Qinglong Meteorological Station, after May 1976, the data of the two group measurement points have risen sharply, and on July 12, there was an "inexplicable pointer jumping", 1976 is the year of the dragon in the lunar calendar, they call this "dragon whisker shaking". Tangshan No. 2 Middle School and Shanhaiguan No. 1 Middle School also have earthquake forecasts. Lu Xingya, a physics teacher at Shanhaiguan No. 1 Middle School, even warned that July 26-28 could be a dangerous period. I heard that as soon as the experts returned to the National Earthquake Administration in Beijing, they were criticized, and the walls were covered with big-character posters. Relevant experts and leaders have also stepped aside, and the matter has become a no-brainer, and there is no short-term prediction of the earthquake, let alone an earthquake prediction. Without experts and professional departments to put forward countermeasures to the higher-level leaders, leaders at all levels are not experts on earthquake problems, and without the scientific and rigorous basis of experts, leaders will not be able to make decisions, and without leaders' decision-making, government departments will not be able to carry out propaganda and launch a response to the major earthquake that will occur, and at the same time, it is not known whether the earthquake will happen, and no one is willing to bear such a heavy responsibility, and there is an embarrassing situation in front of us. ”

"Qiwen, from the news you know, it is also confirmed from the side that what I said is correct, the current mega earthquake outbreak is just around the corner, the exact outbreak time is July 28 at 3 o'clock in the morning - 4 o'clock, in order to be responsible for your own life, responsible for the lives of all your relatives, responsible for the lives of all your friends, you should tell them in the shortest possible time, and also ask them to tell their relatives and friends as soon as possible, and let them take out the family's important belongings and daily necessities, especially to prepare sufficient food, In order to cope with the material shortage after the earthquake. ”

"Weidong, thank you so much, because it was difficult for us to do it before, mainly because there was an earthquake every day, but the earthquake did not come every day, everyone in front of us also attached great importance to it, many people did not even dare to live at home, but the earthquake did not come for a day, did not come for a week, did not come for a month, did not come for a year, people were suspicious, those who lived outside also moved home, and those who went to visit relatives and friends also came back, and everyone slowly became numb to what could happen to the earthquake. Some leaders of some units even forbade people to talk about the earthquake, believing that it would cause unrest and affect production and work. If this earthquake can have such an accurate time, everyone will do it if they don't believe it, and I believe that all people will know that if you really let the people of Tangshan escape this catastrophe, you will be the great benefactor of the people of Tangshan. ”

Hearing Wei Qiwen's speech, Zhao Weidong finally breathed a sigh of relief, but his heart was also full of emotion, the key is that the authority is not enough, there is not much evidence, there is no convincing reason, you can't say that you are a person who has crossed over, if you say it, no one believes it, none of the authoritative experts has put forward the accurate time, who believes that the earthquake you say as a child is accurate? The key to making Wei Qiwen willing to inform her relatives and friends today is that she has gained her trust, and she single-handedly reduced her dislocated shoulder joint, and the technique is clean and neat, which is definitely not something that ordinary people can do, and then through clever persuasion, she accepted her opinion, so that she germinated an idea Even if there was no earthquake at that time, she was willing to do it, because Zhao Weidong asked her to exchange for an infinite price at a very small price - life, which is also very convincing.

"Qiwen, in addition, I want to tell you one thing, after careful investigation and analysis, most of the buildings and bungalows in our Tangshan City can be roughly divided into two categories: one is the frame structure, the foundation, the columns and the surrounding beams on each floor and the top are poured with steel bars, cement and gravel to form a whole, and the brick walls, doors and windows are in the frame, but the number of buildings in this category is small. The other type is masonry structure, and the masonry is built from the foundation: some have beams, some do not, and there are many such houses. The seismic performance of these two types of buildings is different, and the frame structure has better seismic performance and less collapsed. The wall is down, and the frame is still upright, or only slightly tilted. The masonry structure has poor shockproof performance, and it all fell down. Masonry structures can also be divided into two categories: those with reinforced concrete and crushed stone on each floor, and prefabricated slabs that lay flat on each floor. The former collapsed less lightly in an earthquake, and of course it will be lighter if there is a dead person, and the latter will collapse more heavily in an earthquake, and of course the dead will be heavier. This is also a major earthquake that occurred at 3 a.m. to 4 a.m. on July 28, and I speculate based on the results of the investigation that the earthquake will bring devastating damage to the city, as long as most of the people in the house do not survive, the consequences will be extremely serious, you have to do both, on the one hand, in your personal capacity, inform your relatives and friends that you must pack up your things and leave the house before 3 a.m. to 4 a.m. on July 28 to take shelter in an open area, and accompany me and my godfather to find leaders at all levels during this time, Strive to be able to come forward to organize and arrange the specific work of earthquake prevention and avoidance. ”

"Okay, I'll listen to you, I'll do what you say."

"Qiwen, what we are doing is an extremely noble thing, that is, saving 1.06 million people in Tangshan, if you do this well, your name will be recorded in history, let's work together!"

Wei Qiwen was also enthusiastic by Zhao Weidong's words, her heart was full of a lofty sense of responsibility and mission, she secretly made up her mind in her heart that she must do everything in her power to do this well, this is a major event related to the lives of 1.06 million Tangshan people, and in order to save 1.06 million Tangshan people, she will pay for her own lives......

"Qiwen, I think that to save the 1.06 million people of Tangshan, it is not enough to have enthusiasm, but also to pay attention to skills, I think when you tell your relatives and friends, it is said that Beijing experts said that the earthquake on July 28 at 3 o'clock in the morning to 4 o'clock in the morning is the most likely, which increases the persuasiveness."

"Well, if you say it, I don't think many people will believe it, so far no expert can be sure of the exact time of the earthquake, you can determine the exact time of the earthquake, and I don't know why I believe you."

"The truth is often in the hands of a few. Believe me: you can save your own life, you can save the lives of relatives and friends, and you can save the lives of 1.06 million people in Tangshan City; Don't believe me: you may lose the opportunity to save your own life, you may lose the opportunity to save the lives of your relatives and friends, you may lose the opportunity to save the lives of 1.06 million people in the entire city of Tangshan. What else do you think you can choose? ”

"You speak so badly that if I don't believe you, I'll be a heinous sinner, and I have to believe you so I don't want to be a sinner. Let's go, I'm here, go in and sit down. ”

Zhao Weidong took a look at the surrounding houses, all of them were two-story single-room dormitory buildings, Wei Qiwen's family lived upstairs, Zhao Weidong asked:

"Where are the bikes parked?"

"Just stop at the bottom of the stairs."

Park the bicycle, Zhao Weidong handed the car key to Wei Qiwen, the two of them walked upstairs, the fifth room is the room where she lives, she opened the door, turned on the electric light, the whole room immediately lit up, the furnishings in the room are very simple, a bed, a desk, a small round table, a few square chairs, the bed is also an old-fashioned wooden frame bed, but they are all neatly tied, there is a mirror on the table, there is a small photo frame, it is a handmade color photo of Wei Qiwen himself, and the suitcase is also covered with a white yarn crochet box cover, There are also a few stills of female characters in Peking Opera posted on the wall, although they are very simple, but they also reflect the delicate and beauty-loving nature of women in the subtleties.

Zhao Weidong sat down next to the small round table, Wei Qiwen poured a glass of boiled water and put it in front of him, he picked up the boiling water, blew the boiling water that was still very hot, took a small sip of boiling water, moistened his dry throat, and his mind turned to the photo of the ruins of the Tangshan earthquake, many places on the photo were full of loose bricks, thinking of this, he said to Wei Qiwen:

"Qiwen, do you have a flashlight? Also find a gong wire cutter. ”

"Yes, you want to use it, right? I'll get it for you. ”

Zhao Weidong took the flashlight and gong wire knife and said, "Qiwen, let's go out and have a look." "Wei Qiwen is a little strange, what are you doing out? She followed out with questions, only to see Zhao Weidong pick up the gong wire knife and stab the brick crack on the wall to pry open the cement of the hook joint, and turned a few times in the mortar inside, only to see that a lot of mud and sand fell out of it, Zhao Weidong caught it with his hand, and took a serious look, there was no block, all of them were sand and mud powder, and the wall built with such mortar had no strength at all, and a 4-5 magnitude earthquake was enough to destroy such a house, no wonder every time I saw a foreign earthquake in later generations, I never saw the phenomenon of broken bricks, This is the main reason for the huge damage caused by the earthquake in our country, which is also the fundamental reason for the huge damage caused by the Tangshan earthquake and the huge number of dead and injured, but it is very strange that many experts have not noticed this???

"Qiwen, do you see it, the house you live in is built with such building materials, you say how fragile your house is, of course there is no problem, don't say a big earthquake in your house, it is a 4-5 magnitude earthquake is very dangerous, as far as I know, a house of this quality like yours accounts for the majority in the whole Tangshan, not only in Tangshan, but also in the whole country, of course, in the frame structure of the house, if there is this problem, the impact is not very large, so many people ignore this, for rural construction, The fact that individual houses do not use frame structures has become the most critical factor in the fact that the house is not earthquake-resistant. ”

"Weidong, I really don't know, I was shocked when I talked about it, I didn't expect the house I live in to be so dangerous, I have also heard that the mortar of bricklaying is not very important, it is said that the brick wall only bears the force up and down, there is such a heavy thing on the top to press down, there is no problem with what mortar is used, but the floor slab no matter who it is, if the quality is not up to the mark, the floor will collapse, so there are few problems with the quality of the floor slab, but the safest brick wall quality has become the biggest key defect in the earthquake resistance of the house, It turns out that the problem of poor earthquake resistance of most houses lies here! ”

"Qiwen, today is Friday, you use tomorrow and the next two days, find a way to notify all the relatives and friends you can notify, and at the same time ask them to notify relatives and friends again, next Monday I will wait for you in room 208 of the Tangshan City Guest House, and we will go to the secretary of the prefectural party committee to try to get his support."

……