After making up his mind, Jiang Yanhai started to do it directly. Everything was going to be done sooner or later. He directly joined forces with the engineers to enter the interior of the Great Wall. After finding the most suitable node, he used the data analysis and scanning program to directly figure out the entire structure, and then began to install directional blasting bombs.

At the same time, the engineering troops behind had arrived, but what Jiang Yanhai didn't expect was that the first part they exploded was not the part where they defended Taotie head-on, but the part where Jiang Yanhai and the others came in.

That section of the city wall is very narrow because it is not the main defensive force, and there are no various mechanisms inside.

So the place where the city gate is located.

All the ammunition was arranged in less than an hour. The reason why the city gate was blown up was that although tanks could be driven from the city gate, the necessary heavy machinery such as engineering vehicles could not enter.

So, just be a little bit more.

With a huge explosion, the Great Wall section where the city tower is located collapsed directly. The explosion equivalent calculated in advance directly collapsed the city tower and a section of about 15 meters wide.

When the city wall is blown down, the following part is directly entered by large excavators that are only used in the mines.

The huge bucket started working directly, and in less than an hour, the 15-meter-wide collapsed section was directly cleaned out.

It is too easy to clear the road. The extra stone excavator is dug away, and the remaining bulldozers are pushed directly to the side. The road is cleaned first and then deal with it later.

While the roads here were cleared, there was another loud vibration of "boom!". The Great Wall facing Taotie was defending the Great Wall, and a section of the Great Wall, which was about 30 meters wide collapsed again.

Countless fragments flew around, and this section of the Great Wall collapsed completely.

But this time it was different from the one in the city tower. All the gravel and other things were pushed away and the road was cleared out.

However, because the front wall had never thought of blowing up, it was taller with the ground on both sides. The ground was basically built on the ridge, so its foundation was higher than the ground on both sides.

When it is exploded, the directionally blasted gravel can cause it to collapse directly from both sides, and countless pieces of gravel directly form a slope with the ground on both sides.

Of course, these inclined surfaces are made of stones of different sizes, so even tanks cannot use this inclined surface to drive up.

However, this thing is very simple. The engineering troops have not known how many new things have been updated now, especially the materials that have exploded from the combination of different materials in the two worlds, which has opened Jiang Yanhai's eyes even more.

First, the engineering troops directly penetrated into the ground with thick steel columns on both sides of the inclined surface, and then inserted them with steel plates vertically. Both sides of the inclined surface were immediately completely blocked by the steel plates. Then countless cement trucks and concrete irrigation trucks behind them drove over instantly.

"What are you going to do?" Jiang Yanhai asked curiously, because he didn't know what the other party was going to do. He directly watered the gravel with cement and then formed an equal inclined surface? I'm afraid this is not much stable, right?

"New fast drying cement, chief, just look at it." The person in charge of the backward engineering unit raised his eyebrows proudly.

Jiang Yanhai shrugged his shoulders, he could only watch it. He didn't know much about these things. To be honest, he didn't know how much the scientists had done during this period. No wonder the country spared so much effort after learning that there was a new world and agreed directly.

Lin Dianshuai and the others were also watching from the side. The power displayed by these huge steel machines once again shocked everyone in the Shadowless Imperial Guard and said that those ordinary soldiers even thought Jiang Yanhai and the others were gods, otherwise, how did these huge machines come from?

"Extra-one quick-drying cement, mix No. 2 material!" With the command of the logistics staff, Jiang Yanhai saw soldiers pouring a bag of white powder into the mixer truck next to the large water conservancy mixer truck lined up in the front.

Then the mixer truck started to stir directly. After about 5 minutes, the mixer truck and the concrete irrigation truck cooperated and started to extract this quick-drying cement from the mixer truck.

When the nozzle of the concrete irrigation truck began to pour cement on the inclined surfaces formed by gravel, Jiang Yanhai was stunned for a moment, because these fast-drying cements were very thin, or they were more like a grayish-white liquid. This thing... probably wasn't much thicker than water, and it was much thinner than cement anyway.

When it is poured on these gravels, because it is a very thin fluid, it can flow directly into the gaps between the stones like water. In this way, a can of cement tank truck kept driving in, and after releasing the things, it drove away directly.

The inclined surface closest to the ground is soon the fast drying cement should have penetrated the gravel under it and spread to the surface of the gravel. After all, they are not water, so there is no problem in seeping into the gaps between the stones, and it is probably a bit difficult to seep into the soil.

When this fast-drying cement surpasses the surface of the gravel, the concrete irrigation truck will no longer water the place, let it flow down the slope.

But as the flow down, Jiang Yanhai saw its speed gradually slowing down.

15 minutes, the time from the beginning of it in the mixing truck to the time it is 15 minutes. This time is slower than some fast-drying cement. However, what surprised Jiang Yanhai was that after a special chemical reaction, the liquid with such a high moisture ratio would solidify directly as if it was frozen into ice.

"This is our new fast-drying cement. It can seep into many fine cracks. Some river sand that has not been screened can seep directly into it, and then solidify within 15 minutes, and it has a strong strength!"

"The strength is similar to some special cement. If it is combined with steel bars, its strength is not as strong as that of the previous super-strong reinforced concrete buildings, but it is only one level different, much stronger than ordinary civilians." The project manager gave Jiang Yanhai a brief introduction.

The project manager did not directly water the 30-meter-wide inclined section, so he could not use it. He first poured a ramp road of about 6 meters wide, which was enough to use.
Chapter completed!