In the culvert below the factory, orange light bulbs are hung in a neat row on the ceiling, and the yellow light illuminates the entire passage as if it were daytime.

An Wen took a freshly formed mortise and tenon wooden block, and said to the people standing in front of him: "Everyone should be familiar with this thing, right, when I was a child, many of the benches made at home were composed of this structure, everyone has seen it, right?"

Lying in the palm of his hand at this time were two long wooden blocks, one of which had been partially hollowed out and the other partially sliced off, leaving a protruding piece of wood that seemed to fit together just right.

In the early years, when every family had a happy event, they would choose to play a batch of furniture, and among these wooden furniture, the most important combination structure is the mortise and tenon structure, in ancient buildings, with attics and temples, palaces, the construction of eaves and hook angles, are the use of this mortise and tenon structure.

This kind of construction art that only relies on the nodes between the various components to coincide with the mortise and tenon joint, has been handed down for thousands of years in China, and has been used so far, in the present and even decades later, when the bridge is built, due to the limited seamless welding technology of domestic steel, it still relies on this ancient mortise and tenon connection technology to connect the steel between the bridges, of course, it is certainly not wood that is used on it, but other materials, but the reason is the same.

After investigating the specific situation below, An Wen hesitated for a while before coming up with a solution.

Although the workers dug up the load-bearing wall, the collapsed wall was very close to the column, which is why An Wen chose to repair it, otherwise there would be no need for repair work at all.

Columns are more terrible than load-bearing walls, and if one of the load-bearing walls of a building collapses, it may not collapse under certain conditions, but as long as one column is broken, then the whole building will cease to exist.

After finishing his work in Zambia peacefully, he began to take over the project, and one of the most important projects for him was about urban and rural planning and transformation.

At that time, the stability ability was limited, and the contracted project was only a small project, and there were many teams involved in the project with his team.

One of the teams in the construction, there was a serious safety problem, when the person responsible for the demolition was demolishing an abandoned old building, I don't know what the reason, the construction people did not use the method of directional blasting to demolish, but used the crane to directly go to the demolition of the building little by little, as a result, the crane master accidentally broke the column on the second floor, the whole building collapsed instantly, there was no time to react at all, and now the whole dozen fresh lives are all buried in the building.

It follows that sometimes ignorance can be a very scary thing.

An Wen also carefully touched the structure of the entire underground culvert, and only then did he have the confidence to deduce that the top of the collapsed wall was a column, so An Wen chose to repair it overnight.

In fact, it is false to say that it is not dangerous, where will there be a time when it is not dangerous to work on the construction site, but there are priorities, and those old men and experts and professors are frightened enough, and if they say this again, it is estimated that those people will not stay here to work, so An Wen deliberately concealed it, and then carried out the repair work overnight.

Many people think that as long as it is a matter of engineering, then it must take a lot of time, but in the view of stability, those are the views of laymen, in fact, the modern construction industry, has already formed a set of its own efficient management plan, as long as everyone in accordance with the provisions of the system, the progress of the project is very fast.

However, in order to work efficiently, it is necessary to choose the right people.

Many people joke that they will go to the construction site to move bricks in the future, but what they don't know is that some people can't even do this kind of thing like moving bricks, and many people think that things on the construction site are the most inferior and brainless things, and they don't comment on the rights and wrongs of this statement, but he knows that most of the things on the construction site, ordinary people really can't do it.

Although it is some rough work, but the various types of people are good at things are completely different, many people may not believe it, just on the ground even a bent steel bar worker, need to have a special certificate, in order to be able to hold a certificate, so in this era, cultural knowledge is not necessarily advantageous, but no cultural knowledge will be a loss.

An Wen is also worried about this now, he knows how to make these mortise and tenon structures, but there are many different shapes of mortise and tenon structures that are needed, and it takes him an hour to make a one, so much wood, in such a short period of time, it is not a task that he can complete alone.

Therefore, An Wen can only teach the people here to make mortise and tenon joints according to the drawings as much as possible, but if you want to understand the drawings, it is another matter......

Thinking of this, An Wen felt a little pain in his head, when he was in school before, he always felt that the things taught by the teacher were useless, but after he came to work, he found that although those things really couldn't be used directly, they needed those knowledge as a foundation indirectly.

If it is a simple mortise and tenon structure, everyone can understand the drawings in one draw, but now the various components they want to complete are extremely complex, and people without professional training can't think of it at all.

It's not that An Wen looks down on these people, but this thing is really difficult, the only thing he failed when he was in school was CAD drawing, how disgusting this thing is, how disgusting it is, I used to make An Wen so embarrassed that I wanted to cry.

"Everyone got the drawings, right?" An Wen divided these people into groups of three, which would improve efficiency.

"Got it. ”

An Wen waved the drawings in his hand and said: "You can look at these drawings as three views, you try your best to imagine what this component looks like in the space, and after the results of the group discussion are unified, then start working, if there is disagreement, raise your hand to signal me, and I will help you solve it, is it okay?"

"Yes. Everyone said in unison.

An Wen waved his hand and said, "Who else doesn't understand or doesn't understand?"

There was silence in the culvert, and I looked at the watch in my hand, and it was already eleven o'clock.

"Okay, let's get to work, and we'll get it done by three o'clock. ”

With An Wen's order, dozens of young men in the culvert went to work at the same time, they put down their steel guns, picked up chainsaws and planers, and the whole culvert was like another kind of battlefield.