This is how to do the project, when there is no accident, Party A desperately wants to save every penny, all of them are like the landlord in the story of Avanti, and he can't wait to make two cents of things for a penny. But once an accident occurs in the project, they will be held accountable one by one, and they are all comparable to the cold-blooded and ruthless in "The Four Famous Arrests", if there is negligence, no one will want to get away with it.

What's more, the design industry is now a lifelong responsibility system. That is to say, if someone designs a house that has a construction accident, then even if the person is no longer in the original unit, whether he has changed careers, has retired, or is about to die, he will be arrested and interrogated and held accountable.

Because of the heavy responsibility, colleagues often joke in the office: "Well, this place will be counted again, or maybe you will go in." ”

Some colleagues were so upset that they simply put down the mouse and said: "It's better to be in the cell, no more calculations, no more anxiety." ”

Zhao Yuanyuan's design institute is in one of the most prosperous districts of Jiangcheng, and in front of the whole building is a big road that runs through the main city. ”

Zhu Gong looks like an aerated concrete brick on a construction site, which looks sturdy on the outside, but is actually full of holes inside. The design he made is also like a freshly burned aerated concrete brick, which looks decent, but in fact, many details of the interior have not been taken into account, and there are loopholes everywhere. When this kind of design was constructed, there were a lot of problems fed back from the site, and the director couldn't help it once, and came over to warn him: "Zhu Gong, if you don't be careful, be careful of being caught." ”

As soon as the director walked on the front foot, everyone on the back foot was there to learn the tongue: "Zhu Gong, don't be careful, be careful of being caught." ”

Later, as soon as they heard the sound of the police car, everyone joked about Zhu Gong. Zhu Gong's face turned red every time, and he said angrily: "The police are here to arrest you! One or two, don't be careful, be careful and be arrested!"

Especially on the construction site, when faced with some sudden situations and not thinking clearly, do not jump to conclusions.

Zhao Yuan remembers that when he first came to work in the design institute, his sister Ding Huazhi, who was in her thirties, once went to a construction site in Hubei to accept the foundation, and also encountered that the actual situation after the site excavation did not match the geological survey report, and the design of the pile foundation needed to be modified.

Ding Huazhi's hometown is in the countryside, he is not tall, his skin is a little dark, his body is a little fat, he speaks in a rough voice, he works overtime in drawing, and everything is no worse than his male colleagues.

At that time, Ding Huazhi may have been reckless, or maybe he wanted to be a good person, and after hastily calculating with the on-site calculator, he signed and agreed on the spot that the construction unit would modify it according to the modification plan they proposed.

After returning to the design institute, Ding Huazhi was not at ease, and used the computer to recalculate.

Who knows that the bearing capacity of the modified pile is less than the internal force of the structure from the bottom of the column, that is, the bearing capacity of the foundation is insufficient.

Ding Huazhi, who usually doesn't let her eyebrows go, was anxious and desperate, exhausted, and suddenly cried with a "woo-" sound.

Zhao Yuan felt worried, walked over and patted her on the shoulder to comfort her, Ding Huazhi whimpered: "It's been so many days, I'm afraid the foundation has been poured out...... If you continue to cultivate, won't you collapse......"

The foundation could not bear the weight of the upper house, and it collapsed with a "boom" - this kind of disaster movie-like scene has always been a nightmare in the heart of every structural engineer, Ding Huazhi is afraid that the nightmare will come true, and Zhao Yuan is also afraid.

In fact, every structural designer has a sword of Damocles hanging over his head - the structural safety of the house. In order to prevent this sword from falling, Zhao Yuan reminded himself every day that he must be cautious, cautious and cautious.

Therefore, after seeing the site, Party A, the construction party, the supervisor, the designer, and the survey unit all sat in the meeting room of the construction site, Zhao Yuan carefully considered it for a while, and then said: "Our basic design is based on the geological survey report. Which layer of the prestressed pipe pile is the bearing layer, how long the pile is, and what is the bearing capacity, are all designed and calculated according to the geological survey report provided by Party A. Since there is a situation that the pile cannot be driven and does not conform to the design, then I would like to ask, I don't know if you have a geological survey report on the site? We can first look at the geological survey report to see how it describes the site soil in the second area, so as to compare and judge whether the site situation is inconsistent with the geological survey report, and whether the design needs to be modified. ”

Manager Gao asked the staff next to him to hand over a local survey report to Zhao Yuan, and said, "Today's preliminary inspection meeting, Dean Wang of the Geological Survey Institute also happened to come. Dean Wang, what do you think is the reason why the piles in the second area cannot be driven?"

Dean Wang, an elderly lady with gray hair, said with a straight face: "Our Geological Survey Institute is a Class A Geological Survey Institute, and this local survey report has also been reviewed by the Geological Survey and Examination Center. Look, here are our Class A Constitutions and Examination Seals. ”

Manager Gao said: "We know this. But I would like to ask you, what are we going to do now that the piles can't be driven? Is there a need to continue to dig them, and if so, how can we get through the hard soil?"

Zhao looked at the geological survey report from afar, and saw that on the section maps of several survey points in the second area of the site, there were indeed gravel and sand hard soil layers painted five or six meters below the ground. However, this layer of gravelly and sand hard soil is only three or four meters thick, and below the gravelly and sand hard soil layer is a layer of soft soil two or three meters thick, and below the soft soil is about three meters of soft and hard soil layer, and then below is a stable and thick enough gravel layer.

According to the recommendations of the geological survey report, I designed the bearing layer at the end of the pile to the bottom layer of stable and thick enough gravel, and the pile length needs to be 12 meters.

But now it is driven to a gravelly and hard soil layer, and the pile is only six meters long.

Zhao Yuan frowned and said: "According to the geological survey report, the gravel and sand hard soil layer that the pipe pile enters is only three or four meters thick, and under the gravel and sand hard soil layer is a layer of soft soil two or three meters thick. As for whether the calculation of the weak substratum will pass, it is difficult to say. ”

Dean Wang glanced at Zhao Yuan approvingly, and said: "It is also because we have taken into account this weak substratum that the design recommends in the report that the pile should be driven to a stable and sufficiently thick gravel layer below......

The technician of the construction unit called Qian Gong and said: "But now the tip of the pile has signs of damage, and if we force the pile to press again, the pile may break in the soil." ”