Escape From the Library

【Green Water and Green Mountains-05】

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

However, they can only accept the facts and start from scratch.

Everyone quickly adjusted their mentality.Lin Manluo asked Jiang 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 calculated that building five layers of sand barriers can stop all the quicksand.Ke Shaobin said: "Then shall we design 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 will be 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 carefully, and nodded in agreement: "That makes sense. The sandstorm last night was not necessarily the highest level. In order to prevent stronger sandstorms in the later stage, we need to add a few more layers of barriers on the basis of the calculation results, just in case .”

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

Ke Shaobin tapped the keyboard quickly, and said: "Let's try to practice, use the pit dug before Xiaonian as the last barrier, move forward, according to Sister Lin's intention, build a sand barrier wall every 10 meters, By the way, is every wall the same width?"

Lin Manluo said: "It's not the same. The walls of the Feather Row Project need to be arranged in a staggered manner, so that the quicksand can be scattered in different directions. I'll draw a picture for you, Xiao Ke, and you can make a sand table model according to the draft I drew."

She found a branch and quickly drew a picture in 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. The quicksand sliding over the edge of the wall will be blocked by the parallel wall behind.Plus each wall is left with a feathery gap so that no matter how much quicksand the sandstorm blows in, it won't overwhelm the walls due to the accumulation of sand and dust.

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

According to Lin Manluo's sketch, Ke Shaobin made a sand table model in the computer. Immediately afterwards, Liu Zhaoqing cut out 8 wooden boards from Lin Manluo's tree, and fixed them on the ground one by one according to the sand table model. He was still on the wooden boards. Holes were dug, and leaves were used to make feathery sand drains.

This small "experimental device" is complete.

Xu Yishen picked up a large bucket of sand collected nearby and poured it down in front of him.

After the quicksand meets the obstruction of the first wall, part of it is blocked, and most of the rest continues to flow backward along the sand discharge port, and is blocked by the second wall...

The mouth started out like a group of quicksands galloping with thousands of horses, but soon tore apart, ran around, and was blocked one by one by multi-layered walls. When they reached the fifth floor, they could no longer move.

Everyone looked at the results in front of them, and they all showed joy.

Lin Manluo clapped her hands excitedly: "Great! It looks like our thinking is right."

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

Zhuo Feng said with a smile: "Try a few more times, and if there is no problem, we will start the formal construction."

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

Lin Manluo smiled and said, "A bucket of sand is converted in proportion to the volume of sand and dust accumulated last night. Our experiment can withstand the attack 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 will be enlarged in proportion, and it will become an improved version of the project. However, the amount of the project after the improvement is several times higher than before. They have to rebuild the walls alone, and they have to build 8 walls.

Lin Manluo said: "The walls made of fences are still not very stable. We'll just use cement this time."

Zhang Xiaonian was stunned for a moment, and said: "Sister, what you mean is that I want to dig eight ditches, and everyone will build eight cement walls in the eight ditches, and leave gaps on the walls to divert the quicksand?"

Lin Manluo nodded: "Well, it's just that if we don't have experience in building walls with cement, will it be crooked?"

The official construction team has professional spirit levels and vertical line tools to ensure that the walls are perpendicular to the opposite side, so the 30-storey high-rise 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? Of course, the wall summoned directly by the School of Architecture is vertical. You can dig a relatively wide hole first, and Xiaonian builds two walls in the hole, leaving a gap in the middle." We poured cement in the gap of about 10 centimeters between 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 method of sandwich biscuits. Xiaonian used his skills to make two walls as molds, and we poured cement in the middle. Since the wall summoned by Xiaonian can only exist for a few minutes, wait With his walls gone, the 'sandwich' that's left is all we need."

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

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

After discussing the strategy, everyone started working again.

Jiang Pingce took Zhang Xiaonian's laser range finder, which is responsible for measuring distance, marking, and controlling the accuracy of the entire project.

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

Because there are cement sellers in the mall, after Yue Xingwen bought the cement, everyone took the shovel to build the wall together, and the 183 tree planting team suddenly became the 183 cement engineering team.

The two walls of Zhang Xiaonian were used as molds for "sandwich biscuits". The cement that everyone placed in the middle of the two walls quickly formed a vertical, 10 cm thick wall. However, it will take a while for the cement to dry and solidify. Everyone took the opportunity The foundation was buried.Liu Zhaoqing drilled a lot of ventilation holes with a chainsaw, and Lin Manluo used feathers bought in the mall to make ventilation holes...

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

There are skills to help, and the efficiency is indeed very high.

Looking at the staggered layers of windbreaks in front of them, everyone looked at each other and found that everyone's faces were covered with a lot of cement, especially Zhang Xiaonian, whose face was dirty, sand and cement mixed together , just like a cat.

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

Liu Zhaoqing clapped his hands: "There should be applause here!"

The others followed suit and applauded, 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 have done experiments, so there shouldn't be any problems, right? Think about the good."

Ke Shaobin also said positively: "Yes. But you can't set a too big 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 rubbed his nose and coughed lightly: "I won't talk much. Let's rest, we will 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 kept watch together.

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

Jiang Pingce saw his face covered with gauze, and suppressed a smile: "Like a sick patient."

Yue Xingwen's voice was blocked by the gauze, and it sounded dull: "It was windy at night, and the sand was blowing on my face, so I asked Senior Brother Liu to ask for some gauze. Anyway, we know each other so well, so you don't have to worry about your image. You should wear one too." Bar."

He handed Jiang Pingce a sewn gauze mask.

Jiang Pingce turned his head, looked at Shangyue Xingwen with smiling eyes, his heart moved, he stretched out his hand, gently pushed a weed out of his hair, and said softly, "Is there not much money left?"

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

In other words, if there is another problem with this project, they will definitely fail this class.

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

Yue Xingwen didn't tell anyone about this issue, he was afraid that everyone would be so worried that they wouldn't be able to sleep.As the team leader, the budget data is only shown here. Jiang Pingce has been a housekeeper for a long time and is sensitive to funds, so he calculated it himself.

His shoulders suddenly sank, Yue Xingwen looked up and found that Jiang Pingce had gently wrapped his arms around his shoulders.

The boy's familiar voice rang in his ears: "It's okay, the big deal is to fail a subject. We have never failed a subject from elementary school to university. Maybe this time we can experience the feeling of failing a subject?"

Yue Xingwen immediately interrupted him: "Stop, stop, what are you talking about!"

The corners of Jiang Pingce's lips twitched lightly: "It never works when I say these words." He paused, and then said: "We have tried our best, no matter what the final result is, we will bear it together."

After he said this, Yue Xingwen felt much more relaxed.

In fact, there is no need to worry too much. He believes that everyone has done so many experiments and calculated so many times in detail. This project will definitely not go wrong.What's more, if you pass the test and have fun together, and if you fail the exam, you will retake the exam together. With so many people by your side, there is nothing to be afraid of.