This level is quite old, and the ruler is not made of aluminum alloy, but a two-meter wooden ruler that cannot be stretched or contracted. Pen, fun, pavilion www. biquge。 info

On this two-meter ruler, there are marks drawn, and there are corresponding numbers, this kind of ruler is the most primitive, it is quite inconvenient to carry, until later, there is an aluminum alloy ruler, instead of this ruler.

Chu Jianghe rode a bicycle, took Chu Zhizhao, and returned to the place where the roadbed was filled.

Chu Zhizhao looked very excited, and after getting out of the car, he first went to find the rear viewpoint, asked Chu Jianghe to erect the tower ruler, and then ran to set up the instrument.

The instrument shelf is also wooden, which looks very bulky, Chu Zhizhao has also learned the leveling and reading of the level before, and even knows how to calculate the elevation, so he has some introduction.

However, at that time, there was a technical director on the side to guide, otherwise, Chu Zhizhao would definitely not understand anything.

Chu Jianghe looked at this wooden tower ruler and was a little dumbfounded.

Originally, he thought that Chaoping used an aluminum alloy ruler that could be stretched and shortened, but he didn't expect to run out of a wooden ruler, and he didn't know how to do it for a while.

In engineering construction, earthwork is the easiest to do, especially the amount of excavation, because the calculation of ultra-flat data is the elevation of the rear view point plus the rear view minus the front view.

For earthwork excavation, how can the Chujiang River be the most beneficial?

The answer is very simple, that is, originally only 200 square meters of soil were dug, and when the technician gave him the amount of settlement, he settled 400 square meters of soil, which is equivalent to another 200 square meters of soil.

However, in real work, especially in eight years, this situation is unlikely to occur, at this time the technical personnel, more principled, you obviously dug 200 squares, the other party can not give you 400 square meters for no reason, this is Fan Daji.

So how can you count more?

Only do things on the first-hand information on the scene, if Chu Jianghe is not involved when it is super flat, then he can't do it, after all, the data is recorded by the other party, and it is impossible for you to modify the original super flat data of multiple parties.

However, the problem now is that Chu Jianghe participated in Chaoping, if it was an aluminum alloy ruler, when Chu Zhizhao was reading, he could completely change the values of his previous life and rear view in hiding, so that the original data obtained by Chu Zhizhao did not match the reality.

Because the elevation of our super-flat position is equal to the elevation of the backsight plus the backsight minus the foresight.

The higher the elevation of this location, for example, this elevation is 2m, and you want to dig down to 1m, then once the elevation of this place becomes 2.5m, then you have to dig 1.5m, and there is an extra 0.5m of cut.

Therefore, in the process of measurement, when looking at the rear view, we have to find ways to make this number larger, that is, when stretching the tower ruler, the section between one meter and two meters, try to pull out as little as possible, normal people set up instruments, see most of the number of more than 1 meter, but in order not to let the other party suspect, less than ten centimeters should not be a problem, once the distance is far away, it can not be seen at all.

As long as one centimeter is pulled out less, then the reading of the rear view in the measurement is one centimeter more, and then the front sight, the smaller the front view, the better, first of all, we have to ensure that the tower ruler has been pulled out completely, because the value is small, it shows that this place is relatively high, the place is high, the tower ruler will get up, and the reading seen is the reading under the tower ruler, from the bottom to the top, the reading of the tower ruler is getting bigger and bigger, the lower it is, the smaller the reading.

In this way, it is ensured that the rear view is large, the front view is small, and in the process of calculation, the rear view is added and the front view is subtracted, so that the elevation of the measurement point obtained is larger.

But the problem is that now Chu Jianghe is not taking an aluminum alloy ruler, and the wooden tower ruler cannot be retracted at all, so there is no way to cheat in this regard, and the only thing that can be done is to wait for the next measurement and placement point, and put some higher places, so that relatively speaking, the calculation result will have more excavation.

Chu Jianghe waited on the side for about five minutes, and Chu Zhizhao was still there pouring the instrument, as if it hadn't been leveled or something, and kept moving the instrument shelf. He couldn't help but wonder, it's super flat, what else is so difficult?

"Chu Gong, if I don't come, you can help with the ruler. After waiting for another two minutes, Chu Zhizhao still didn't move, so Chu Jianghe had no choice but to step forward and suggest.

If you don't go up, this guy may not be able to come out in the morning.

"Boss Chu, will you be super flat?" Chu Zhizhao was obviously a little embarrassed, he brought the instrument, but he couldn't even level it, before that, he had leveled it himself, why did he feel so difficult this time?

"Yes, I didn't say it, when the village was building a cement road, I happened to get a level, and I learned it at that time. Chu Jianghe continued to flicker, and said: "But I can only read the count, not how to calculate, after I help you read it, Chu Gong, you can take it back and calculate." ”

Chu Zhizhao thought about it, there was no other way, he couldn't go to Brother Qi now, just now the other party asked him if he wanted to help, he had already bragged about Bull B in front of others, now it's okay, NiuB is blowing big, do you still have the face to go back and ask the other party to help?

Now, Chu Zhizhao can only rely on Chu Jianghe, a dead horse is a live horse doctor, if he really goes out, he will have an explanation when he goes back, right?

For the number, it's a big deal to review it when the time comes!

"Okay, then I'll go and hold the ruler, you have this notebook. Chu Zhizhao nodded.

Then, Chu Jianghe took Chu Zhizhao's record book, and Chu Zhizhao took Chu Jianghe's wooden tower ruler and walked to the level point over there.

Looking at the old-fashioned level in front of him, Chu Jianghe suddenly had a familiar feeling, the moment he touched the level, Chu Jianghe roughly adjusted the tripod, looked at the U-shaped bubbles, and the two hands subconsciously automatically rotated the three leveling spirals, five seconds, the level was leveled, then rotated 180 degrees, slightly leveled, and then turned back, and found that the level was also flat.

In the teacher's teaching, when leveling the level, it rotates two spirals at will, but after getting familiar with it, you will find that in fact, the three are connected and the leveling is faster.

After the level was leveled, Chu Zhizhao had not yet reached the position of the control point, but Chu Jianghe couldn't behave so well, isn't it suspicious?

How can you say that Chu Zhizhao is also a technician in the work class, and the instrument has not been leveled for more than ten minutes, but you Chu Jianghe leveled it in five seconds, isn't this a slap in the face?

Even if Chu Zhizhao is a beginner, this makes people feel that the contrast is too great!

Therefore, even if the level was leveled, Chu Jianghe was still upside down, turning back and forth, making Chu Zhizhao feel that you don't understand this guy more and more, and I can't be better than you.

Chu Zhizhao was accustomed to Chu Jianghe's rotation there, in Chu Zhizhao's opinion, although Chu Jianghe had used a level, he was not familiar with it after all, and if he really wanted to level it, it would take three or four minutes.

But the result made Chu Zhizhao a little surprised, and about a minute and a half, Chu Jianghe waved his hand to himself, and the meaning had been leveled.

"It's been adjusted so quickly?" Chu Zhizhao was a little stunned, showing a look of surprise.

This is more than half of the three or four minutes less than he expected, which makes Chu Zhizhao feel that how can he get out of a villager and be so bullish?

Looking at Chu Jianghe looking at his tower ruler again, his standing posture and the like are a little awkward, which makes people feel that the other party has really used a level, so Chu Zhizhao has found comfort in his heart.

"It must have been familiar with the other party before, or it was a coincidence, so it was leveled so quickly!" Chu Zhizhao thought in his heart, holding on to the tower ruler with some reluctance.

Not long after he was helped, Chu Jianghe waved his hand to him, indicating that he had finished reading.

"Damn, this reading speed is actually so fast?" Chu Zhizhao was dumbfounded again.

You said that you leveled quickly, maybe it was a coincidence, but after you can read it clearly, and then read it to three decimal places, and the last digit of millimeters is still estimated, and the other party got it so quickly?

Chu Zhizhao took the tower ruler in disbelief, came to Chu Jianghe, and said, "Boss Chu, are you really optimistic?"

"Yes, Chu Gong, the rearview reading is 1673. "The Chu River channel.

1673, that is, 1.673m, but the engineering unit for the convenience of recording, generally do not have decimals, once read below one meter, such as 0546 such a count, you will know that it is 0.546m.

"You go to the ruler, I'll take a look. Chu Zhizhao didn't believe it.

"Okay. Chu Jianghe took the tower ruler very happily, and ran to the control point with a crackle, obviously, Chu Zhizhao still had some doubts about his reading.

Chu Zhizhao turned the camera and turned to the direction of Chu Jianghe, after Chu Jianghe finished reading just now, he had already turned the camera.

After several turns, in the end, Chu Zhizhao finally saw the tower ruler, the clarity does not need to be adjusted, the tower ruler can be clearly presented in his eyes at this moment, and then Chu Zhizhao will estimate it according to the position of the middle silk.

"1600, 1665, 66, 67, 1675 is not enough, 1674, 1673 is fine. Chu Zhizhao muttered.

In the end, his own reading was exactly the same as Chu Jianghe's reading, and the estimation of the last millimeter was not so careful.

"It's 1673. Chu Zhizhao muttered to himself.

Now, he has no doubt that Chu Jianghe can look at the level, and the number is not wrong, the two of them see exactly the same, and Chu Zhizhao is relieved.

"Come back. Chu Zhizhao beckoned to Chu Jianghe.

Chu Jianghe took the tower ruler, walked over, and said, "Chu Gong, there is nothing wrong with the rearview reading, right?"

Chu Zhizhao was a little stiff-mouthed: "It's a little different from my reading, it's basically the same, you can measure it, Boss Chu." ”

"Good. When Chu Jianghe heard this, he was not ambiguous, and a smile appeared on the corner of his mouth.

What Chu Jianghe wants is to let him operate the instrument by himself!