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Wei Jian and Shu Cheng chatted for half an hour, even if it was over, let Shu Cheng prepare the work ordered by Wei Jian. ↗ The top point said that according to Wei Jian's words, three days later, Shucheng would move to Shangyunzhuang Station and go there to build the signal building of Shangyunzhuang Station.

Before that, Shucheng must prepare all the materials needed for the station.

For the preparation of materials at the station, Shu Cheng remembers very well that when he prepared the materials for the station for the first time, there were many problems, and they were changed three times, which made Manager Zhou of the material department have a headache.

If it weren't for the good relationship between Shu Cheng and Zhou Yun, the preparation of materials at the station might have been barreled to Zhang Tianhu.

In the engineering unit, the technical requirements are very rigorous, every number you give is directly related to the next step of construction, just like you give a preparation material, just take the steel bar, today you need 5t, tomorrow you call the material department, not 5t, is 0t, the day after tomorrow is 8t, in this way, the material department can not work at all, he does not know how many t you want.

This is also why, in the engineering and technology department, any material preparation, need to review the system, only after the review, after the confirmation of correctness, can be reported.

Shu Cheng remembered one thing very clearly, Sun Xun sent a completed sentence to the leader of the subsidiary, Sun Xun read it five times one word, and then asked Shu Cheng to read it three times, and only after confirming that it was correct.

It's not that Sun Xun doesn't believe in himself, but just in case, sometimes, carefully the technicians of the engineering unit come, and it is very important, a person with a big character wants to do a good job in technology, and it is very difficult.

After Shu Cheng took the track diagram, he took out a blank piece of paper and put it on the table, and the pen was ready.

In order to prepare materials for the station without any mistakes, Shucheng must record it with a pen, and it is indeed a fact that a good memory is better than a bad pen.

For Haocun Station, there are two strands of road and two sets of turnouts, which belong to the simplest station transformation.

For the preparation of the station, the first preparation is of course the turnout, the preparation of the turnout is the simplest, because the turnout and the turnout pillow and fasteners, is a complete set, when preparing the material, you only need to write what is 60 or 50 of the number of turnouts, left or right open, you can.

Like the two groups of turnouts in Haocun, in the mileage direction, it is a group of P60-1 right-hand turnouts, and in the large mileage direction, it is the left-hand turnout of a family of P60-1, and the standard drawing numbers used are SC0.

P60-1 refers to the No. 1 turnout of 60 rails, and the total length of this kind of turnout is 7.907 meters, the length of the front of the switch is 16.85 meters, and the length of the switch is 1.054 meters.

The front of the turnout is the distance from the center of the turnout to the front of the turnout, and the distance from the center of the turnout to the last end of the turnout is the distance after the turnout, which is a good distinction.

And how to distinguish a group of turnouts, whether they open left or right?

A very simple way is that you stand in front of a set of turnouts, facing the direction of the turnout, if the turnout turns to your left, then it is left, if it turns to your right, it is a right-hand turnout.

Of course, sometimes, but after a group of turnouts come out of the main line, turn to the right, and there are exactly two strands on the right side, how to distinguish whether the turnouts of these two strands are open left or right, the method is very simple, you stand in front of the turnout, look at the fork before and after the fork of the two strands, who is in a straight line, not in the straight line of the strand, in front of the fork into a straight line on the left side, that is, the left open, on the right side, is the right open.

After the turnouts are ready, the next step is the rails.

There is a requirement for the renovation of the station yard of the Jersey project department, which must use new 60 rail rails on the main line, that is, all non-60 steel rails on the main line in Haocun Station must be changed to 60 new rails.

In this way, as long as we measure the length of the non-60 rail in the early stage of the station survey, and subtract the length of the turnout, we can know how many rails to change before the turnout and how many rails to change after the turnout.

And our 60 rails, one is 5 meters, the rail seam is calculated according to 8mm, directly from the front of the turnout and the back of the turnout to the two ends of the arrangement, and finally calculate the number of 60 rails on the positive line.

Here, all rails over 1.5 meters must be prepared according to 5 meters of rails.

The 60 rails of the main line can easily come out, and here we must pay attention to one problem, that is, the rails before the forks.

If we newly lay the turnout, the original rail before the turnout is 60 rail, this part of the rail, should it be replaced?

The answer is yes, 5 meters before and after the fork, we call it a protective rail, this part of the rail, must use a new rail.

That is, if the original rail before the fork is 60 rails, then we must cut the existing 60 rails before the fork, and then press a new 60 rail as a protective rail, which is required in the specification.

Not only before the fork, but also after the fork, the new rail must be used, but the difference between the fork and the fork is that he does not necessarily have to use a new track of 5 meters, if the two groups of turnouts are not far apart, the front group of turnouts after the turnout and the rear group of turnouts before the junction, it is very likely to be a 1.5-meter protection rail, in some old lines with 6.5 meters of steel rail to do the protection rail, now it is rare.

Not only the protective rails before and after the 60 turnouts need to use new rails, but also the steel rails before and after the 50 turnouts must also use new rails, which cannot be ignored.

The rail preparation of the main line is very simple, and the station line is the same, the requirement for the reconstruction of the Jersey Line station yard is that the station line uses 50 steel rails, although this is the case, but there are not all 4 rails, which need to be replaced.

Because this group of turnouts is 60 turnouts, and the station line turnout after the connection, we have two connection methods, the first is to use a 5-meter 60 steel rail, as a protective rail, and 60 turnouts station line after the turnout.

Another way is to directly connect a 60-50 special-shaped rail after the line of the 60 turnout station.

What is the 60-50 special-shaped rail, it is very simple, this rail, and the part connected with the 60 turnout, is the height of the 60 rail, and the 60 rail is exactly the same, and at the other end, it is exactly the same as the 50 rail.

The purpose of the use of special-shaped rails is to allow different types of rails to be connected normally.

These two kinds of connection methods, can be, generally our on-site construction, are directly connected with 60-50 special-shaped rails, behind the 60-50 special-shaped rails, the connection is 50-4 special-shaped rails, in this way, through guò two special-shaped rails, we directly converted the 60 rails to 4 rails, and the rails behind are 4 rails, so that the rails of the station line can be all connected.

According to the actual situation of Haocun Station, Shucheng directly prepared 4 60-50 special-shaped rails, 4 50-4 special-shaped rails, and 4 pairs.

The preparation of turnouts and rails is the simplest preparation in the station. In these preparations, it is necessary to pay attention to the length of the protective rail, because this is related to the preparation of the sleepers below.

The sleepers of the protective rail are not only of different types, but also in terms of quantity.

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