This sleep, I slept until 2:20 in the afternoon, mainly because Shu Cheng and Cai Wu overslept-

Although Zhang Qing and Xu Jin didn't oversleep, they saw that Shu Cheng and Cai Wu hadn't woken up yet, and it was not easy to call them, so they let Shu Cheng and the two of them sleep, and they overslept like this.

"Xiao Zhang, why don't you call me, it's almost half past two." After Cai Wu woke up, he said with a hint of reproach.

At this time, Shu Cheng happened to wake up and relieved Zhang Qing and said: "Mr. Cai, Zhang must want you to sleep a little longer, the leader is usually busy, how can you disturb it." ”

"Okay, you're going to investigate the station yard in the afternoon?" Cai Wu asked.

"Well, in the morning, the location of the new paved turnouts has been set, and in the afternoon, I will investigate the existing situation of the line, and according to the situation on the spot, I will go back and draw the track distribution diagram of Miaozhuang." Shucheng Road.

"That is, one station can be solved in a day?" Cai Wu asked.

Originally, Cai Wu thought that it would take at least half a month to match the track diagram, after all, there were eight stations, but he didn't expect Shu Cheng to say that it could be done in eight days, half of the time earlier than expected.

"It's almost, the track diagram is easy, and the preparation of materials is a bit cumbersome, and it may have to be reviewed many times." Shu Cheng explained.

"Okay, then you go to work, the two of you pull the ruler, the other person does the protection, watch the train, pay attention to safety, I won't go." Cai Wu was too lazy to get out of the car, besides, there were three people, it was enough, and Cai Wu would not participate.

"Okay." Shu Cheng didn't have any requirements for Cai Wu, besides, Cai Wu was also the deputy manager no matter what he said, and the technical investigation site was still technically his own business.

"Let's go, let's start with a big mileage, it's simpler over there, it's easier to explain." Shu Cheng said to Zhang Qing and the others.

The three of Shucheng came to the big mileage side of Miaozhuang Station.

This side was reconstructed, the two sets of turnout (2 and 4) turnouts were removed, the main lines of the two sets of turnouts (new 2 and 4) were all replaced with P60 rails, and the wooden sleepers were all replaced with new concrete sleepers (including new type 2 sleepers and type 3 sleepers).

Shu Cheng stood on the shoulder of the No. 2 turnout and explained to the two: "We can distinguish the turnouts, according to the large mileage or the small mileage, the general large mileage, is an even number of turnouts, for example, the two groups of turnouts here are No. 2 and No. 4 turnouts, and the turnouts in the direction of small mileage are No. 1, 3, and 5 turnouts." ”

If you haven't been in contact with the people who have changed the station, you really won't pay attention to these details, which is related to the problem of the turnout number in the station.

Large mileage even number turnouts, small mileage odd number turnouts.

"Before we investigate, we need to understand, what do we want to change? Once you've determined this, you can move on to the next step. For example, the design requirements of Miaozhuang Station require that all the existing turnouts in the station yard should be removed and replaced with P60-12 turnouts. The main line needs to use all 60 rails, so we will find out the section where the main line is not 60 rails, and replace them with 60 rails when the time comes. Shu Cheng continued: "The wooden sleepers of the main line need to be replaced with concrete sleepers, so the wooden sleeper sections must also be marked, and these numbers will be added when calculating the sleepers. ”

In fact, it is very simple, that is, what is not in the design, which is not wanted, dismantled and replaced, and replaced with something else.

Then according to the design requirements, which place is replaced with what kind of turnout, which place is replaced with what kind of steel trackball rail.

Investigate the places that need to be changed, measure their distances, and replace them with things that need to be changed, and you're done.

As a simple example, there is a 200-meter-long line, and these 200 meters are to be replaced. But these 200 meters, including two sets of turnouts, also have 50 rails, and 43 rails. Our goal is to dismantle these two sets of turnouts, 50 and 43 rails, that is, to remove all the 200-meter lines, and the rails and turnouts are gone.

Then this section of the railway is less than 200 meters, the next thing to do, is to put the position of the line, first put the two sets of new turnouts, according to the design of the position, after the place, because the two sets of turnouts are only more than 74 meters in total, there is still more than 120 meters, then the remaining 120 meters, with P60 rail instead, the line is connected.

In this way, the transformation of this line is complete!

In fact, to put it bluntly, it is a game to fill the vacancy after demolition!

"Next, we have to measure and record the length of each section of the main line that is not P60 rails, as well as the length of the turnouts, according to the situation on site. Shu Cheng tried his best to tell Zhang Qing and Xu Jin in the simplest way, and at the same time brought the two of them to the scene to watch.

In this way, you can learn faster and get started quickly, when Shucheng first learned, there was no such treatment, it was all a little bit of guidance from others, plus their own exploration, summed up experience!

"Brother Shu, how do you distinguish between 60, 50, and 43 rails?" Xu Jin asked, because he suddenly realized that he couldn't tell what kind of rails they belonged to.

"Looking at the height of the rail, the rail height of 176 is a P60 rail, 152 is a P50 rail, and 140 is a P43 rail. Shu Cheng explained.

After Shu Cheng's detailed explanation and on-site guidance, Zhang Qing and Xu Jin quickly learned.

"Brother Shu, then according to what you say, we just need to measure out the wooden sleeper segments, remove the wooden sleeper when the time comes, and fill the gap with the concrete sleeper?" Zhang Qing pondered for a moment and asked.

"That's right, that's what it means." Shucheng Road.

Next, Shu Cheng asked the two of them to go to the line, measure the length of the main line that is not a P60 rail, and make a record, and Shu Cheng helped watch the train.

In fact, on the railway, there is no guard, it is forbidden to get on the railway, because safety cannot be guaranteed.

After measuring the main line, Zhang Qing and others began to measure the station line, because the station line only needs to use P50 rails, but because the station is 43 rails, it is impossible to replace them all.

Therefore, Shucheng will match the rail according to the simplest, on the side of the turnout bend, first use a pair of 12.5 meters of P60-50 special-shaped rails, and then connect a pair of 12.5-meter P50-43 special-shaped rails, so that the P60 rails are transferred to the 43 rails, which is also the most economical rail distribution form.

"Brother Shu, why are the two rails 8 centimeters apart in length, but both sides of the joint are parallel?" At this moment, Xu Jin suddenly found a question and asked Shu Chengdao.

Shu Cheng saw that Xu Jin and the others were just on the gentle curve of the curved strand after the No. 4 fork.

"That's supposed to be a shortened rail, because when we turn the railroad, you think about it, when it passes through the curve, you have to keep the joints parallel, whether the outer rail should be longer, whether the inner rail should be shorter, so there is a shortened rail. Generally, there are three types of shortened rail shortening, 40, 80, and 120. And what you just measured is that the inner rail is 8 cm shorter than the outer rail. "Shucheng Road.

Xu Jin looked at the number he had memorized and said in surprise: "Brother Shu, it's really like what you said." ”

In fact, the easing curve of the shortened rail behind the turnout is often used, some use the shortened rail, and some use two 12.5-meter steel rails to match the rail, depending on the actual situation.

In the afternoon, Zhang Qing and Xu Jin kept asking Shucheng questions, but fortunately, Shucheng Station had rich experience in reform, and each question was explained to them in detail.

At the beginning, the two of them were embarrassed to take notes, but in the end, they found that they had too much knowledge about the station and couldn't remember them in their heads, so they took notes one after another to prevent them from forgetting.

After investigating the big mileage, the three of them came to the small mileage, which was more copied than the big mileage, but there was Shu Cheng, and the progress was quite smooth.

At around five o'clock in the afternoon, the three of them finally completed the investigation of Miaozhuang Station, and Zhang Qing and Xu Jin were shocked by the knowledge they learned in Shucheng.

At the same time, the two of them admired Shu Cheng even more, and they almost apprenticed to the rhythm of the teacher.

Shu Cheng's position in their minds at this moment has surpassed that of Chief Engineer Lin Xiaoyong, and even surpassed their master, because their master did not teach them so many things.

In the engineering unit, few people can pass on their experience to other technicians without reservation like Shucheng, and record the remuneration!