"Then?" Yu Qingyang waved to a worker, "dig it out! Slow down!"
After the workers dug out the ring cutter, Yu Qingyang gently removed the ring cover, "At this time, use a soil trimming knife to cut off the remaining soil on both ends of the ring cutter from the edge to the middle, and use a ruler to check until it is smooth.
Then take out the soil from the ring knife and weigh it on a scale!
Then use the formula, 4*(m1-m2)/πdh to calculate the wet density of the soil sample!
m1 refers to the weight of the ring knife with soil, and m2 refers to the weight of the empty ring knife.
We can omit it here, because what we weigh now is directly the weight of the soil.
So just multiply 4 by the weight we just weighed on a scale, and then divide it by πdh!" Yu Qingyang spoke very patiently. As for whether they can listen to it, it depends on themselves.
When they are in school, the teachers don't care whether they learn or not.
When I get to the unit, I can’t say there are no people like Yu Qingyang who can explain it to them patiently, but very few!
"Brother Yu, is this the end?" Xiao Jiang also asked.
Everyone was about the same age and they were all young people. Seeing that Yu Qingyang was easy to talk to, Xiao Shen and Xiao Jiang didn't have so many worries and asked whatever they thought of.
"No, this is the first step. Next, we need to measure the moisture content in the soil and then calculate the dry density!
Use an alcohol stove to dry the soil sample you just took, and then weigh it!
The original soil weight - the oven-dried soil weight, then divided by the oven-dried soil weight, and then multiplied by 100% is the moisture content!"
"Brother Yu, how do you calculate the dry density?" Xiao Shen asked.
"The formula for calculating dry density is wet density divided by 1 + moisture content.
Compaction is dry density divided by maximum dry density times %.
The maximum dry density is the data obtained in the laboratory!”
Yu Qingyang explained in his mouth without listening to the movements of his hands.
Yu Qingyang had not done work like testing compaction for more than ten years in his last life.
Fortunately, I haven't forgotten it yet. I don't know if it's a rebirth benefit, but now I don't feel unfamiliar at all when I do it.
"Brother Yu, you are so awesome!"
"What's so great? These are the most basic knowledge of technology!
It’s all in your books, you just didn’t pay attention!”
Yu Qingyang has led many interns and graduates from technical colleges, and knows that people like them came from technical colleges that started in junior high school.
You really can't learn much in school.
Not many good students go to technical colleges, only those with bad grades go.
The management of technical colleges is not much stricter than that of universities. How much knowledge do you expect such students to learn?
Most of them studied on the construction site after graduation.
Only those who can learn on their own and adapt to the construction site can continue in this industry.
Since the cancellation of allotments in technical secondary schools and technical colleges this year, a large number of graduates have directly changed careers and gone to work in other industries.
"Xiao Yu, are you done?"
“This one is fast!
You two take the ring knife and go over there to take another soil sample!" Yu Qingyang casually instructed the two people to work.
After teaching for a long time, it’s time to do some work.
"Xiao Yu, you have to do it well and don't cheat!"
"Brother Sun, if I lied about the compaction, wouldn't that be deceiving me?
Don’t worry, I won’t do that!” Yu Qingyang responded with a smile.
Two people helped take soil samples. Yu Qingyang did it very quickly. Basically, it was time-consuming to burn the soil in an alcohol stove.
After everything was done, Yu Qingyang sorted out the inspection records, climbed up the embankment and handed it to Worker Sun, "Brother Sun, look, the compaction degrees are all qualified! They are all above 96%! Can you see if I can lay the pavement?"
Geotextile, have you set up the formwork?"
"Okay, let's do it!" Sun Gong glanced at it, nodded, and mouthed to the side, "Your little girlfriend has been waiting for you for a while!"
Yu Qingyang followed Sun Gong's words and looked over, smiling bitterly: "Brother Sun, why are you making such a joke?
You can't say this nonsense. I don't care if it spreads. She is a little girl, so it will bring bad reputation to others!"
Next to Lingling, there is a little boy about the same height as her, that is her brother.
Both siblings are thin and tall, less than 1.7 meters tall.
When Lingling saw Yu Qingyang looking at her, she didn't dare to come over. She just stood there and smiled sweetly at Yu Qingyang.
Seeing Lingling's smile, Yu Qingyang couldn't help but feel his heart twitch.
It was around three o'clock in the afternoon, when the sun was shining brightly in the sky.
These two fools were actually standing in the sun waiting for me.
Look again, Uncle Tian is inspecting the construction site accompanied by Section Chief Gao and supervisors Liu Gong and Wu Gong.
Standing in front of the small concrete mixing plant, study the necessity and importance of the small concrete mixing plant.
Seeing how enthusiastic they were in their research, Yu Qingyang didn't want to go over and get involved.
So she walked to Lingling and her brother and said, "Aren't you two hot? Why don't you hide under the shed to hide from the sun?"
"It's okay, we are not afraid of the heat! Brother Yu, this is the loach we caught!" Lingling's face turned red from the sun, and her brother's face was almost as red, with anticipation in his eyes.
"So many?" Yu Qingyang asked in surprise.
There were two iron buckets at the feet of the two siblings, both of which were mostly filled with loaches.
The iron buckets used in rural areas can hold fifty kilograms of water. Yu Qingyang picked up the bucket and weighed it. One bucket contained about twenty or thirty kilograms of loach.
"My brother is very good at catching loaches! He caught most of them!" Lingling said with a cheerful smile on her face.
Yu Qingyang felt inexplicably distressed. These two fools probably didn't even eat lunch in order to catch loaches.
"You haven't eaten yet, have you?"
"It's okay, we're not hungry, we'll go home and eat later!"
"Okay, this bucket counts as thirty kilograms, and two buckets weigh sixty kilograms. I'll give you six hundred yuan. Give me the other two buckets too! Can I give you seven hundred yuan in total?"
"It's too much. Brother Yu, just give me...four...five hundred yuan!"
"Okay, stop making money, your brother Yu is not short of this little money!"
"Thank you, Brother Yu! I will send you a loach tomorrow! By the way, do you want an eel?" Lingling took the money and said happily.
"I want it! I want it all!"
Yu Qingyang smiled bitterly in his heart and agreed with his mouth.
Watching the two siblings jumping away.
Speaking of which, Lingling is only sixteen or seventeen years old. She is also a child and is still very innocent at heart.
I only thought about catching loaches and selling them for money, but I didn’t think about it. There were only twenty or thirty people here, so how could they eat so much?
No matter how good the loach is, you can’t eat it every day!
Forget it, just think of it as atonement for your previous life!
The more I think about it, the more I feel that what I did in my previous life was quite scumbag!
"Yangzi!" Uncle Tian came over.
"Uncle Tian!"
"What happened to that girl?" Uncle Tian asked, looking at Ling Ling's back.
"What's going on?" Yu Qingyang touched his head.
"You kid, don't pretend to be confused for me! Let me remind you, don't mess with me!" Uncle Tian glared and reprimanded.
Uncle Tian has worked in the water conservancy industry all his life and has seen this kind of situation many times.
There are several people in the company. Their wives were brought back from the construction site. They were messing around on the construction site and were detained by their families. They would not let her leave until they got married.
It’s not that Uncle Tian looks down on rural people, he is also a rural person.
Those who brought their wives back from the construction site obviously had a worse life than others.
Moreover, after the novelty wears off, differences in living habits, culture, and family conflicts continue.
Section Chief Gao told Uncle Tian about this for Yu Qingyang's benefit.
I'm worried that he's young, can't control himself, and will end up in trouble.
Yu Qingyang touched his nose and promised with a smile: "I know, Uncle Tian, I won't mess around!"
"Just have it in mind. Do you have anything else? I'll be back in a minute! Do you want me to bring a message to your parents?"
"Uncle Tian, are you leaving now? Can you leave after dinner?"
"No, it's getting late. If it's later, it'll be dark and it's hard to walk!"
"Oh, by the way, Uncle Tian, please take these two buckets of loaches back! One bucket for you, and please send another bucket back to my mother!"
"Oh, this loach is really good! It's hard to buy such a big loach in Quanshui City!" Uncle Tian took a look into the tin bucket and said with a smile.
"Wait a minute!"
Yu Qingyang ran to find two pieces of plastic sheeting, wrapped the mouth of the tin bucket, and tied it with a rope, fearing that the loach would be suffocated to death, and poked a few small holes in the plastic sheeting.
Then he carried it to Uncle Tian and loaded it into the car.
Uncle Tian left, and so did Sun Gong and the others.
Yu Qingyang arranged for workers to start laying geotextile.
A layer of waterproof geotextile should be laid between the concrete slope protection and the soil slope foundation.
The formwork can only be supported after laying the geotextile.
For the tooth wall below, the criss-crossing floor beams in the middle are fifty centimeters thick, the underground trench is buried twenty centimeters deep, and the concrete slab is twenty centimeters thick, so the final floor beams are ten centimeters higher than the concrete slab.
This extra ten centimeters needs to be shaped using a template.
"Brother Yu, what's that white one?" Xiao Shen approached Yu Qingyang and asked in a low voice.
"That is geotextile, it is used for waterproofing! Although concrete is waterproof, it cannot be 100% waterproof!
So add a layer of waterproof geotextile to make it waterproof!”
"Waterproof geotextile? Are there non-waterproof geotextiles?" Xiao Jiang also asked.
"Yes, geotextiles are divided into two types: waterproof geotextiles and permeable geotextiles.
Their functions are different!
As the name suggests, waterproof geotextile is used for waterproofing!
Permeable geotextile is used to prevent soil loss!
It means that water can pass through the geotextile and block the soil." Yu Qingyang explained carefully.
"Brother Yu, what is the difference between waterproof geotextile and permeable geotextile? How to tell the difference?"
"Look, there is a waterproof membrane behind this waterproof geotextile! The permeable one does not have this waterproof membrane!"
"Stop! You can't connect like this!" Yu Qingyang suddenly shouted to stop.
"What's the matter, little boss? Is the overlap of twenty centimeters correct?" The worker looked at Yu Qingyang doubtfully.
Yu Qingyang was not in a hurry. He walked down the embankment and explained to them carefully, "I blame you for not explaining it clearly. It is correct to overlap by twenty centimeters, but it cannot be overlapped like this. The geotextile on top must be used to press the geotextile below.
.”
"Brother Yu, is there no difference? They are all overlapped by 20 centimeters, up and down, down and up, aren't they all the same?" Xiao Shen also followed Yu Qingyang down the slope. After listening to Yu Qingyang's words, he asked doubtfully