Chapter 3 Newtonian Mechanics

"Jingle bell ......" The phone finally rang.

"Uncle, don't go to the gantry crane hoisting site. By the way, hurry up and tell them to stop......" Li Rui opened the flip cover and shouted at the phone.

"Li Rui, what a mess. Why haven't you arrived yet? I was notified yesterday, and today I accompanied Director Liang to conduct enterprise research. Hurry up, when Director Liang comes down, you will have to be criticized again before you arrive. The voice was low and muddy, not uncle, Li Rui flashed a fat round face in his mind, this was the voice of his top boss, Luo Xin, director of the Industrial Division of the Planning Commission. The director Liang in his mouth is Liang Yongqiu, the executive deputy director of the Industrial Division. Back then, he received bad news from his uncle when he accompanied Liang Yongqiu to investigate.

"Lao Liang, I can't come today. You can help me take a leave of absence. Worried about the busy line, Li Rui hung up the phone directly after speaking.

Although Li Rui is several levels worse than Liang Yongqiu, Liang Yongqiu is the executive deputy mayor Li Yifeng's person, and Li Rui is Guo Wending's person, so he didn't hum or ha, and Li Rui was even more lazy to deal with him at this time.

It didn't take long for the phone to ring again, "Xiao Rui, what's wrong?" ”

Hearing his uncle's voice, Li Rui breathed a sigh of relief and hurriedly asked, "Uncle, where are you?" Don't go to the crane hoisting site. ”

"I'm on my way, two steps away." Li Wenjun was slightly stunned.

"Don't go over, and hurry up and ask them to stop, I'm coming, you wait for me." Li Rui's voice was full of anxiety.

"What the hell is going on?" Li Wenjun said strangely.

"Ahh Don't go over yet, call them and tell them to stop first, I'm going to be there soon. Li Rui didn't dare to say that the gantry crane was about to collapse, otherwise Li Wenjun would definitely pass.

Li Rui's tone was hurried, and he was rarely heard so solemn, although Li Wenjun was very puzzled, he still said after a slight sigh: "Okay, I'll wait for you at the gate of the crane branch." ”

After hanging up the phone, Li Rui suddenly collapsed on the seat, and then he felt that his back was cold, and the cold sweat was already soaked.

Stimulated by the hundred-yuan bill, the taxi driver drove fast and arrived at Penggong Group not long after. After Li Rui got out of the car, he was about to ask the doorman about the location of the crane branch, and a Santana drove from the factory, and Wang Tianyu, who was sitting in the driver's seat, beckoned to him: "Li, get in the car." ”

"Li Chu, you are in a hurry, I only caught up with Mr. Li by driving." Although he was very disdainful of Li Rui's character, Wang Tianyu, as Li Wenjun's confidant secretary, knew Li Rui's identity, and said flatteringly while driving.

The person who revealed the true situation of the accident to Li Rui was Wang Tianyu, and later when Li Rui asked him to testify, Wang Tianyu retreated, and Li Rui beat him up fiercely. Now that I think about it, I faced so much pressure at the beginning, even the Zhang family didn't want to stretch out my hand, let alone Wang Tianyu, a small section-level secretary. Besides, today it was he who helped stop the uncle in time, Li Rui raised his head and patted Wang Tianyu's shoulder, and said sincerely: "Xiao Wang, thank you." ”

In Wang Tianyu's impression, Li Rui is not only low in character, but also very arrogant and rude, he has never been a fake color for his little secretary, and today he actually thanked himself so politely, the sun came out from the west!

"It should, it should!" Wang Tianyu was busy.

The factory area of Penggong Group is very large, except for the roar of machines in the workshops on both sides of the road, everything is as usual, and the accident has not happened.

"On the gantry crane side, Mr. Li has asked me to inform them to temporarily stop hoisting." While driving, Wang Tianyu secretly glanced at the silent Li Rui, he was very strange that this Li Dashao seemed to be a different person today, and he had to hurry over to stop the hoisting of the gantry crane.

Li Rui nodded. The speed of the car slowed down, and a right turn entered the gate of the crane branch. Not far from the gate, a figure stood there.

Thirty-six-year-old Li Wenjun is tall, with a straight nose and thin lips, thick eyebrows and big eyes, and slightly curly hair, which is definitely the image of a stylish male uncle. Seeing his uncle standing there alive, Li Rui suddenly felt that his nose was sour, and his eyes were faintly blurred.

"What's going on? Why did you let me stop the gantry crane hoisting and didn't let me pass. Seeing Li Rui get out of the car, Li Wenjun walked up and asked with a serious expression.

In fact, Li Rui's request is a bit absurd, out of trust in his nephew and intellectual caution, Li Wenjun met Li Rui's request, but also full of questions.

Li Rui suppressed his excitement, turned his mind, and said: "When I went out today, I heard that there was a problem with your group's gantry crane when it was hoisted yesterday evening. This 300-ton gantry crane is not designed and produced by you, uncle, so I was anxious after hearing it. And I heard that it weighed thousands of tons, and if it collapsed, it would be a terrible thing, and people would smash it into meat sauce. ”

Li Rui deliberately said it was very exaggerated, and he couldn't help but shudder when he remembered the real accident that happened back then.

It's rare for a nephew to care so much about himself, Li Wenjun's expression eased, but thinking of Li Rui's mention that there was a problem with the hoisting yesterday, his expression was solemn again, and he asked Wang Tianyu: "What is the problem with the hoisting?" Did the installation company report it? ”

According to what Li Rui learned about that year, there was a problem in the evening of the day before the collapse, but the mechanical installation company of the Mining Bureau in charge of the installation concealed the situation, and made a mistake the next morning, which directly led to the accident.

Sure enough, Wang Tianyu shook his head and said, "I haven't heard of any problems." ”

"Let's go, go over and have a look." Li Wenjun waved his hand decisively.

"Uncle, will it be dangerous?" Li Rui hurriedly grabbed Li Wenjun and said.

"It's okay, I've already asked Xiao Wang to notify the scene to stop." Li Wenjun patted Li Rui's hand and said with a smile.

The 300-ton gantry crane has a lifting gantry crane height of about 50 meters, a beam span of 100 meters, and a weight of more than 2,000 tons. The gantries on both sides of the hoisting site have been erected high, and the 100-meter-long girder has been lifted to about 30 meters in mid-air. There are more than a dozen installers standing on the gantries on both sides, and there are also many people laying pipes and wires below.

Seeing the scene in front of him, Li Rui sighed in his heart, no wonder there were heavy casualties back then, such a big guy smashed down, driving the dragon gates on both sides to collapse together, how could these people have any way to live.

"Mr. Li, why did you stop us?" A lean and thin middle-aged man wearing a hard hat and holding a walkie-talkie in his hand ran over.

Seeing him, Li Rui's eyes narrowed suddenly, this person was none other than the culprit of the accident, Qi Cunwei, the manager of the mechanical installation company of the Pengzhou Mining Bureau.

"Lao Qi, what went wrong when it was hoisted yesterday evening? Why didn't you report it? ”

As the manager of the Machinery Installation Company of the Mining Bureau directly under the provincial political axe, Qi Cunwei's level is right, and Li Wenjun also knows his background, so although he raised questions, his tone was still polite.

Qi Cunwei was stunned for a moment, and suddenly scolded in his heart: I don't know that it was the talkative one who poked this little thing. This Li Wenjun has always had strict requirements for quality and safety production, Qi Cunwei hurriedly explained with a smile: "It's just some small problems, we can completely solve them, so we didn't report them." ”

"What the hell is the problem?" Hearing that there was indeed a problem, Li Wenjun stared at Qi Cunwei and asked.

Qi Cun said with a big grin: "It was yesterday evening when I was lifting the girder, the car above hit the cable wind rope. Yesterday it was late, so I stopped. Today I'm going to loosen the cable rope a little bit and adjust the angle a little bit to let the trolley pass. ”

Li Wenjun looked up and took a closer look, and sure enough, the longitudinal trolley on the girder touched the cable wind rope on the inside of the gantry's legs, and couldn't go up.

The legs of the gantry crane cannot be moved, but the design allows for a certain amount of deflection. During hoisting, there are two wind ropes on each side to fix.

"Is it enough to loosen the wind rope and stick to it? Have you ever calculated it? Li Wenjun is a strict person and asked with a frown.

"Mr. Li, don't worry! Absolutely. Our company used to install gantry cranes and encountered this situation, which is generally handled in this way. Besides, the relaxation time is very short, but only a few minutes, and it will not affect the stability of the legs. Qi Cunwei said nonchalantly.

"Don't talk so much, this is a 300-ton gantry crane! You used to install only a few tons, dozens of tons. You look at so many people at the scene, and once it collapses, these people are all doomed. Li Rui, who was standing behind, couldn't help but say. It was precisely because of this attitude that Qi Cunwei believed in "experience" and commanded in violation of regulations, which led to the accident.

Qi Cunwei knew Li Rui, the deputy director of the Industrial Division of the Planning Commission who did not have a good reputation, he didn't pay attention to it at all, and he didn't take the initiative to say hello just now. There are two wind ropes fixed on the inside, and it is no problem to relax one. If you look at the theodolite below, we also have a measurement reference, so that you can monitor the deviations that occur at all times. ”

If Li Wenjun wasn't there, Qi Cunwei wouldn't even bother to talk nonsense with Li Rui.

Li Wenjun is not very expert in the installation of gantry cranes, seeing Qi Cunwei full of confidence, confident look is also a little hesitant, after all, the girder has been hung half, if you put it down, re-calculate, adjust the plan, it is bound to affect the construction period, but also cause a part of the economic losses.

Seeing that Li Wenjun didn't speak, Li Rui hurriedly said: "This is a major matter of human life. Did Manager Qi graduate from junior high school? Newtonian mechanics says that forces must be equal in magnitude, opposite in direction, and in the same straight line in order for an object to remain at rest or at a constant velocity. This is the simplest truth in junior high school physics. You have to loosen the wind rope, and if you relax one of the other ropes, the tension on both sides will be asymmetrical, regardless of whether the other one can withstand the strength or not. Don't say a few minutes, even a little slack, and the demonstration of Newtonian mechanics will happen. ”

Qi Cunwei was squeezed by Li Rui and was speechless. At the same time, he also reminded Li Wenjun that this is a big guy of nearly 2,000 tons, and it is indeed a major matter of human life, and there is no chance of it.

"Li Rui is right! Lao Qi, let the workers put down the girder first. The installation plan needs to be readjusted. ”

Qi Cunwei opened his mouth, although he was not convinced, he had no way to refute it. Listening to Li Rui's words, his heart was also a little bottomless, the three-hundred-ton big guy, their company was also installing it for the first time, in case something really happened, he didn't dare to imagine it. looked at Li Wenjun, who had a resolute attitude, and Li Rui, who had a sneer, gritted his teeth and shouted at the on-site project manager: "I didn't hear Mr. Li's orders!" Put the girder down and stop working! ”

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