Escape the Library

【Lucid waters and lush mountains-05】

After a night of sandstorms last night, their project was completely buried by quicksand, and the woven fence wall was broken in the middle. Everyone walked out of the base, watching the mess everywhere, and secretly scolded the library several times in their hearts.

However, they can only accept the facts and start over.

Everyone quickly adjusted their mentality. Lin Manluo asked Shangjiang Pingce, Ke Shaobin, and Zhang Xiaonian to go on a field trip together, accurately measured the range of the quicksand, and made a scaled-down model in Ke Shaobin's laptop.

After returning to the base, everyone began to calculate in detail, and finally figured out that building a five-layer sand barrier could block all the quicksand. Ke Shaobin said: "Then we design it according to the five-layer barrier?"

Jiang Pingce was silent for a moment, and suddenly said: "All our calculation results are based on the quicksand standard last night. In case, there is a more severe sandstorm in a few days, these five layers of barriers may not be able to stop it."

Lin Manluo thought about it and nodded in agreement: "It makes sense. The sandstorm last night is not necessarily the highest level. In order to prevent stronger sandstorms in the later period, we need to add several layers of barriers on the basis of the calculation results, just in case. ."

Jiang Pingce said: "It should be about the same to increase to eight floors."

Ke Shaobin quickly typed on the keyboard and said, "Let's try to practice, using the pit dug before Xiao Nian as the last barrier, move forward, and build a sand barrier wall every 10 meters according to Senior Sister Lin's wishes. By the way, is each wall the same width?"

Lin Manluo said: "It's different. The walls of the feather row project need to be staggered, and quicksand can be dispersed in different directions. Let me draw you a picture, Xiao Ke, you can make a sand table model according to the draft I drew."

She found a branch and quickly drew a picture on the sand.

Ke Shaobin took a closer look. The sand barrier wall designed by Senior Sister Lin is two short, one long, and two short so that the quicksand sliding over the edge of the wall will be blocked by the juxtaposed wall behind. Plus there are feathery gaps in each wall so that no matter how much quicksand the sandstorm blows, it won't overwhelm the walls due to the accumulation of dust.

The quicksand was blocked and dispersed layer by layer, and finally stopped by the airtight one-kilometer-long wall.

According to Lin Manluo's draft, Ke Shaobin made a sand table model in the computer. Following that, Liu Zhaoqing cut out 8 wooden boards from Lin Manluo's tree. According to the sand table model, they stood on the ground and fixed them in turn. He was still on the board. Holes were dug and leaves were used to make feathery sand drains.

This small "experimental setup" is complete.

Xu Yishen picked up a large bucket of sand collected from nearby and fell down in front.

After the quicksand encountered the block of the first wall, part of it was blocked, and most of the rest continued to flow backward along the sand discharge port, and was blocked by the second wall...

The mouth began to be like a group of quicksand galloping with thousands of horses, and soon they were torn apart, scurrying everywhere, and were intercepted by multi-layered walls one by one. When they reached the fifth floor, they could no longer move.

Everyone looked at the results in front of them with joy.

Lin Manluo clapped her palm excitedly: "Great! It seems that our thinking is right."

Due to the existence of the "dredging channel", quicksand will not accumulate, and all the sand barrier walls are firm, and no layer is crushed or broken. I don't know how many times better than the fence wall made at the beginning.

Zhuo Feng said with a smile: "Test it a few more times. If there is no problem, we will officially start the construction."

This time, Zhang Xiaonian also brought a bucket of sand and fell down with what Xu Yishen found, pretending that the sandstorm was stronger. Everyone stared at the experimental sand table under their feet. After a while, all the sand was intercepted at the seventh layer of obstacles.

Lin Manluo said with a smile: "A bucket of sand is proportional to the volume of dust accumulated last night. Our experiment can withstand the invasion of two buckets of quicksand, which means that even the sandstorm in the future will be twice as strong as last night's. , this project will not be destroyed!"

Sister Lin's words gave everyone great confidence.

Their sand table is scaled up, and it will become an improved version of the project. However, the amount of engineering after the improvement is several times higher than before. They have to rebuild the walls and build 8 walls.

Lin Manluo said: "The wall made of the fence is still not very stable. We will directly use cement this time."

Zhang Xiaonian was stunned for a moment, and said, "Senior sister means, I want to dig eight trenches, and everyone will build eight concrete walls in the eight trenches, leaving gaps in the walls to divert the quicksand?"

Lin Manluo nodded: "Well, it's just that if we use cement to build a wall, we have no experience, will it be crooked?"

The formal construction team has professional level and vertical line tools to ensure that the walls are perpendicular to the opposite side. Therefore, the 30-story high-rise building will not be crooked when built. But they are not professional after all, so they can't rely on visual inspection, right?

If the wall is crooked, even if there is no wind, it may collapse.

Yue Xingwen suddenly thought of an idea: "Can't Xiaonian build a temporary wall? The wall directly summoned by the School of Architecture is of course vertical. You can dig a wider pit first, and Xiaonian builds two walls in the pit, leaving a hole in the middle. In the gap of about 10 cm below, we pour cement between the gaps on the two walls, and the resulting wall is not very standard?"

Ke Shaobin's eyes lit up: "Like sandwich biscuits?"

Yue Xingwen smiled and said: "Your analogy is quite appropriate. It is the practice of sandwich biscuits. Xiaonian uses his skills to make two walls as molds, and we pour cement in the middle. Since the wall summoned by Xiaonian can only exist for a few minutes, etc. After his walls were gone, the 'sandwich' that was left was all we needed."

Lin Manluo praised: "Good idea! As for the hole for sand removal, leave it to Brother Liu's chainsaw!"

Liu Zhaoqing said cheerfully, "No problem, I'll cut a bunch of sand holes on all the walls according to your sketch, and make sure to cut them neatly for you."

After discussing the strategy, everyone started to work again.

Jiang Pingce took Zhang Xiaonian's laser rangefinder, which was specially responsible for ranging, marking, and controlling the accuracy of the entire project.

Zhang Xiaonian drove the excavator to quickly dug out the foundations of the eight walls. According to Xingwen's instructions, the foundations were dug wider first, and the soil was buried and fixed after the walls were finished.

Since there were cement sellers in the mall, after Yue Xingwen bought the cement, everyone built the wall together with shovels, and the 183 tree species team suddenly became the 183 cement engineering team.

Zhang Xiaonian's two walls were used as molds for "sandwich biscuits". The cement that everyone placed between the two walls quickly formed a vertical wall with a thickness of 10 cm. However, it will take some time for the cement to completely dry and solidify. Everyone took the opportunity. The foundation is buried. Liu Zhaoqing drilled many ventilation holes with a chainsaw, and Lin Manluo used feathers bought in the mall to make the ventilation holes...

The 12 people were busy all day, and when it was getting dark, the walls were all built.

There are skills to help, the efficiency is really high.

Looking at the staggered layers of windproof walls in front of them, everyone looked at each other and found that everyone had a lot of cement on their faces, especially Zhang Xiaonian, who had a dirty face, sand and cement mixed together , just like a cat.

Yue Xingwen said: "Everyone has worked hard, the first stage of our improved version of the project is successfully completed!"

Liu Zhaoqing applauded: "There should be applause here!"

The others followed and applauded, and everyone was very proud that a group of inexperienced college students actually built eight layers of windproof and sand-fixing walls in the sand.

Lin Manluo said worriedly: "I hope this project will be fine."

Zhuo Feng said, "We've done experiments, so there shouldn't be any problems, right? Think for the best."

Ke Shaobin also said positively: "Yes. But you can't set up too big a flag, so as not to be slapped in the face. Everyone should not talk about this topic, especially... some crow mouths, don't open your mouth."

Yue Xingwen pointed to his mouth: "Crow's mouth? Are you talking about me?"

Ke Shaobin's desire to survive was overwhelming: "You are not a crow's mouth, you are just a prophet!"

Yue Xingwen touched his nose and coughed lightly: "I won't talk much. Everyone, rest, and continue to work in groups tonight."

In the first half of the night, Yue Xingwen, Jiang Pingce, Xin Yan, Ke Shaobin and Qin Lu and Qin Miao watched the night together.

In order to prevent the sandstorm like last night from happening again, Yue Xingwen simply sat outside with a coat on, and even temporarily made a mask with the gauze given by Liu Zhaoqing to cover his face.

Jiang Pingce looked at his gauze covering his face, and suppressed a smile: "It looks like a sick patient."

Yue Xingwen's voice was blocked by the gauze, and it sounded a little dull: "The wind is strong at night, and the sand blowing on your face is uncomfortable, so I asked Senior Brother Liu to ask for some gauze. Anyway, we are so familiar, so don't worry about our image, you also wear one. Bar."

He handed a sewn gauze mask to Jiang Pingce.

Jiang Pingce turned back, met Shangyue Xingwen's smiling eyes, his heart moved, he reached out his hand, and gently pushed a weed out of his hair, with a gentle voice: "Is there not much money left?"

Yue Xingwen's smile quickly dissipated, he sighed softly, and said, "Yes. The cement wall is strong, but cement is much more expensive than a fence. To build so many walls today, half of the funds given to us by the library are spent. , we can no longer fail."

That is to say, if there is another problem with this project, their class will definitely not pass.

They don't have the money to buy mall materials to start over.

Yue Xingwen didn't tell anyone about this, he was afraid that everyone would be so worried that they couldn't sleep. As the captain, the cost data is only shown here. Jiang Pingce has been a housekeeper for a long time and is more sensitive to funds, so he figured it out by himself.

His shoulders sank suddenly, Yue Xingwen looked up, and found that Jiang Pingce gently wrapped his shoulders with his hands.

The boy's familiar voice sounded in his ears: "It doesn't matter, the big deal is to fail the class. We have never failed a class since elementary school to university. Maybe we can experience the feeling of failing a class this time?"

Yue Xingwen interrupted him immediately: "Stop, stop, why are you crows!"

Jiang Pingce's lips lifted lightly: "I never said these words." He paused, and then said: "We have done our best, no matter what the final result is, we will bear it together."

When he said this, Yue Xingwen's mood was indeed much more relaxed.

In fact, there is no need to worry too much. He believes that everyone has done so many experiments and detailed calculations so many times that this project will definitely not go wrong. What's more, it's fun to pass the test together, and retake the exam together if you fail the exam. There are so many people to accompany you, so there's nothing to be afraid of.