Chapter 266 I can't figure it out, and I add reinforcement

Regarding what Chu Jianghe said about the railway safety factor, Zhang Shengqiang and Shen Hongliang were stunned when they heard it, they couldn't understand what Chu Jianghe said at all.

Chu Jianghe just made a few random calculations in his notebook and listed some formulas that no one could understand, and this thing was determined in this way? Shen Hongliang and the others seriously doubted the water in Chu Jianghe's words.

After all, Chu Jianghe is not a railway designer, and what he says has no authority, how can people believe it, not to mention, from their understanding, they know that Chu Jianghe has never studied in college at all, and he will calculate such a complex calculation?

"Squad leader Chu Gong, then we will dismantle it?" Zhang Shengqiang said again.

"Let's dismantle it, after the demolition, try to finish pouring it tonight, don't be checked by the superiors, and it will be troublesome when the time comes." "The Chu River channel.

Fortunately, there is no supervision now, otherwise, subtracting half of the steel bar, it may not be satisfied, for the Chu Jianghe in the Royal Design Institute in the previous life, today's bridge and culvert design, are too rough.

In many design drawings, designers can't really calculate the load amount of the railway during operation, which is mainly a problem of scientific development and application.

As a result, within the design institute, there was such a regulation, which is not clear, add steel bars!

This also leads to the fact that the amount of steel reinforcement in many design bridge culverts is seriously too much, which is completely wasteful, and in the eyes of current designers, as long as the steel bars are enough, there is no problem.

In fact, it is not the case, Chu Jianghe is very clear, for some large-span bridges, if there are too many steel bars, the impact on the force and other aspects is relatively large, and sometimes, the gains outweigh the losses, which is counterproductive.

Nowadays, there is no supervision of the project, and there are few inspections by superiors, and it is poured directly after demolition, and once the concrete is poured, whether the steel bar is less is missing, it is invisible.

"The steel bars of the wall over there?" asked Shen Hongliang.

"The reserved steel bars on the side wall should not be less first, and they should be buried like this first!"

"Okay. Shen Hongliang said.

In Chu Jianghe's view, in fact, the side wall reinforcement can also be reduced by nearly half, but considering that there will be inspections in the future, the side wall may not be able to dry in a short time, and when the time comes, if there is a problem with the inspection, Chu Jianghe will be unlucky.

Cutting corners during this period is a very serious problem, although Chu Jianghe is reasonable, but he did not follow the design of the construction, and what he said is not authoritative, and there is no reason for it.

The bottom plate saves half of the steel bar, which is also a lot of money, after all, there are other culverts of the same kind, as long as the bottom plate steel bar of a culvert is processed, it is enough for two.

"In the afternoon, loosen the tied ties, and in the evening, I want concrete first, and then I pull it out and pour it directly. For the sake of safety, Chu Jianghe still told Zhang Shengqiang to pay attention.

"Okay, Chu Gong squad leader. Zhang Shengqiang nodded.

"Lao Zhang, what are these stones for? At this time, Chu Jianghe found that on the side of the culvert, there was actually a lot of gravel on the other side.

"Oh, it was made by excavating the foundation pit, and this culvert was not replaced because of the hard geology. Zhang Shengqiang replied.

"Where are you going to use it?" This stone looks like the material is not bad, and Chu Jianghe wants to reuse it.

"I'm going to pull it away, what's the matter, what arrangements do you have for the squad leader?" Zhang Shengqiang said.

"In this way, in the afternoon, you can arrange an excavator, cooperate with some labor, and break these stones for me, no more than the size of a fist. Chu Jianghe gestured a few times.

"Good. Zhang Shengqiang didn't ask why.

Who knows when this road bureau will come to check, for fear that they will carry out a surprise attack, so Chu Jianghe is better to be careful, in fact, he has never thought about it, he made a fortune by cutting corners, and he only occasionally used his hands and feet.

After the arrangement, Chu Jianghe inspected the construction site, and now there are three places where the roadbed filling work has been carried out, and two bridges are sinking wells, so we have not designed bored piles, so there is no need to drill percussion.

After dinner in the evening, Zhang Shengqiang told Chu Jianghe that the steel bars of the culvert had been all processed, and after the concrete arrived, the construction could begin.

Chu Jianghe sat in the office for a while, and then drove to the construction site.

When I came to the culvert and stopped the car, the concrete tanker had not yet arrived, and the only pump truck in the workshop from Frankfurt was parked at the scene, and the pump truck was driven by the technician Franz found.

If this pump truck is not Franz, Chu Jianghe can not be done, before in the Jingtan Railway, when pouring concrete, high places have to use labor, quite troublesome, until last year, the road bureau gave Yu Qing an old pump truck, pouring concrete is much more convenient.

At this time, the sky gradually darkened, and Zhang Shengqiang was already at the scene, directing the workers to remove the dismantled steel bars and pile them aside.

In the past 20 minutes, under the continuous operation of more than a dozen workers, half of the dismantled bottom plate steel bars were removed, and Chu Jianghe also got out of the car.

"Zhang Gongban, after you wait for the concrete to come, when it is pouring, you let the excavator put the pile of broken stones over there into the bottom slab and pour them together. Chu Jianghe arranged.

When Chu Jianghe saw this pile of stones in the afternoon, he thought about how to deal with it, and later as soon as the steel bars were removed, Chu Jianghe found that the spacing between the steel bars was twenty centimeters, which was not small.

If the stone is broken, it can be put into the bottom plate, and then the concrete is poured, and the gravel is buried in the middle of the concrete, and when the concrete is poured, no one can see what is in the middle of the concrete.

"Buried in concrete?" Zhang Shengqiang said in a daze.

"Yes, but don't put them in piles, but in the middle of the concrete, and let the workers vibrate and vibrate. Chu Jianghe arranged.

In fact, in Chu Jianghe's view, when the bottom plate is poured, even if these gravel are added in the middle of the concrete, it will not affect the quality, although these stones are excavated on site, but the texture is very good, and Chu Jianghe is also ready to pull it to the mixing plant to mix concrete.

But then I thought about it, and I felt that it was not appropriate, after all, it was not worth the money to pull back the transportation fee, not to mention the excavator cost.

After thinking about it, Chu Jianghe was ready to mix these gravel into the poured concrete, so that the impact on the safety factor of the culvert floor was very small.

"Good. Zhang Shengqiang nodded and agreed.

If it is a work class of the Road Bureau, the deputy work squad leader can not listen to the work team leader, but this work class is different, Chu Jianghe is the boss, he has the final say, after all, everyone is Chu Jianghe pays wages and makes money for Chu Jianghe.

Zhang Shengqiang knew that he couldn't do this, but he still had to do it.

"However, these gravel are only used on the bottom plate, the exposed side walls and roof of the culvert, and they cannot be used!" Chu Jianghe admonished.

For a long time, Chu Jianghe has been working in a more measured manner, saving if he can, and spending what he can't save.

Like side walls and roofs, if the quality is not well controlled, the operation is affected by the force, or mixed with gravel, resulting in water seepage of concrete, it will be a permanent disease.

As a railway designer, Chu Jianghe understands the key points.

"Then it's just for the baseplate?" Zhang repeated.

He originally thought that Chu Jianghe would continue to use the inexhaustible gravel of the bottom plate when pouring the side walls and roof plates, but he didn't expect him to deny it directly.

"Well, the foundation of the eight-character wall can be used, but the eight-character wall cannot be used, as long as it is an exposed wall, it cannot be used. "The Chu River channel.

"I know the squad leader!" Zhang Shengqiang nodded slightly.

As soon as Chu Jianghe explained this, he knew the meaning of Chu Jianghe's words, and it seemed that Chu Jianghe still took into account the quality of the construction.

In less than five minutes, the first Bafang concrete tanker arrived at the site and began to pour.

Chu Jianghe gave instructions on the spot, and after making sure that there was no problem, he drove away.

Just as Chu Jianghe left the scene, Shen Hongliang hurriedly returned to Chutan University and went directly to the old professor's dormitory building.

Finally, on the third floor of a building on the east side, there was a knock on the door.

The door was opened by a woman in her fifties, who looked like a teacher.

"Liangliang, why are you here, come into the house. The old man said with a smile.

"Grandma, is grandpa at home?" Shen Hongliang said hurriedly as soon as he entered the house.

"Here, writing in the study, is there anything wrong with you looking for him in such a hurry?" Shen Hongliang's grandmother said kindly.

"Well, ask grandpa for something on the railroad. Shen Hongliang said.

"Have you eaten?" Seeing Shen Hongliang walking directly to the study, Grandma asked with concern.

"Grandma, I've eaten, you are busy with yours first, I'll ask grandpa questions first. Shen Hongliang said.

After speaking, Shen Hongliang skillfully came to the study, knocked lightly on the door, and then pushed it open.

After opening the door, I saw an old man wearing a shirt and writing calligraphy, this person was Kong Xiangheng, vice president and professor of civil engineering at Chutan University.

"Grandpa. Seeing Kong Xiangheng, Shen Hongliang paused, as if he was scared and in awe.

"Liangliang is here. After Kong Xiangheng put away the words he was writing, he put the brush on the brush holder and turned to Shen Hongliang.

"Are you resting today?" asked Kong Xiangheng.

"No, I specifically asked for leave to come over and ask grandpa a question. Shen Hongliang said solemnly.

"You say it, come and hear it. Kong Xiangheng said with interest.

As he spoke, he went directly to the old-fashioned sofa next to him and sat down, and motioned for Shen Hongliang to sit.

At this time, Shen Hongliang's grandmother brought some favorite fruits into the house and said, "Liangliang, eat some fruits after eating, appetizing." ”

"Thank you, grandma. Shen Hongliang said with a smile.

Then, Shen Hongliang's grandmother went out and closed the door casually.

Shen Hongliang also took out a notebook from his bag, which was the one he used when he was working on the construction site in the afternoon, and at the same time, he also took out the culvert drawings hand-drawn by the design institute.

Kong Xiangheng looked at the things Shen Hongliang took out curiously, not knowing what he meant.

"Grandpa, today I encountered a problem, after our foreman looked at the drawings, he drew these things in my notebook, it looks like a formula, I can't understand it, he calculated for nearly ten minutes, told us, the safety factor of this culvert is 3.5 or something, I can't understand the formula, I want to show grandpa you, see if he is right. Shen Hongliang said and handed the notebook to Kong Xiangheng.