Having made up his mind, Jiang Yan Hai started to do everything sooner rather than later. He directly joined forces with the engineering troops to enter the interior of Great Wall. After finding the most suitable nodes, he used the data analysis scanning program to directly figure out the entire structure, and then began to install Shaped Charge's bomb.
At the same time, the engineering troops from behind had also arrived, but what Jiang Yan Hai didn't expect was that the first thing they exploded was not the section of the city wall that was defending Taotie from the front, but the section of city wall where Jiang Yan Hai and the others entered.
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 that exploded was where the city gate was.
All the ammunition was deployed in less than an hour. The reason why the city gate was blown open was because although tanks could drive through the city gate, necessary heavy machinery such as engineering vehicles had no way to enter.
So, just do it.
With a huge explosion, the Great Wall section where the city tower was located collapsed directly. The explosion equivalent calculated in advance directly destroyed a section of the city tower about 15 meters wide.
After the city wall was blown down, some large excavators that were only used in mines followed and entered directly.
The huge bucket started working directly, and in less than an hour, the 15-meter-wide collapsed section was cleared directly.
Clearing the road is too simple. The excavator digs away the excess stone, and the bulldozer pushes the few remaining parts directly to the side. The road is cleared first, and then processed later.
While the road here was being cleared, there was another loud "Boom!" sound, and the front Great Wall defending Taotie, a section of Great Wall about 30 meters wide, collapsed again.
Countless fragments were flying everywhere, and this section of Great Wall completely collapsed.
But this time it was different from what was done at the city tower. All the gravel was pushed away and the road was cleared.
However, because the city wall on the front had never been thought of exploding, it was at a certain height from the ground on both sides. The foundation itself was built on a ridge, so its foundations were higher than the ground on both sides.
When it is exploded, Shaped Charge's gravel can cause it to collapse directly from both sides. Countless gravel blocks directly form a slope with the ground on both sides.
Of course, these slopes are made of stones of different sizes, so even tanks cannot use this slope to drive up.
But this thing is very simple. I don't know how many new things the engineering team has updated now, especially the materials that emerge from the combination of different materials from the two worlds, which is an eye-opener for Jiang Yan Hai.
First, the engineering team directly drove thick steel columns into the ground on both sides of the slope, and then inserted steel plates vertically into the ground. Both sides of the slope were immediately completely blocked by the steel plates. Then countless cement trucks and concrete pouring trucks came over instantly.
"What are you going to do?" Jiang Yan Hai asked curiously, because he didn't know what the other party was going to do. Directly pour the gravel with cement and form an equal slope? I'm afraid this won't be very stable, right?
"New quick-drying cement, chief, just watch it." The person in charge of the backward engineering unit raised his eyebrows proudly.
Jiang Yan Hai shrugged his shoulders. He could only watch. He didn't know much about these things. To be honest, he didn't know how much scientists had worked on during this period. No wonder the country spared no effort and immediately agreed after learning that there was a new world.
Commander Lin They were also watching. The power displayed by these huge steel machines once again shocked everyone at Shadowless Imperial Guard. They said that those ordinary soldiers even thought Jiang Yan Hai they were gods. Otherwise, how did these huge machines come here.
"Type-1 Quick-Drying Cement, mix Material Number 2!" Following the command of the logistics staff, Jiang Yan Hai saw a soldier pouring a bag of white powder directly into the mixer truck next to the large water conservancy mixer truck at the front.
Then the mixer truck began to stir with a rumble. About 5 minutes later, the mixer truck and the concrete pouring truck were connected together, and the quick-drying cement began to be extracted directly from the mixer truck.
When the nozzle of the concrete pouring truck began to pour cement into the slope formed by the gravel, Jiang Yan Hai was stunned for a moment, because the quick-drying cement was very thin, or it was more like a gray-white liquid. This thing... I guess it is not much more viscous than water, but it is 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 along the gaps like water. In this way, a truck full of cement tanks keeps driving in, and after releasing the things, it drives away directly.
On the slope closest to the ground, these quick-drying cements should have penetrated the bottom of the gravel very quickly and spread to the surface of the gravel. After all, they are not water, so there is no problem in penetrating into the gaps between the stones. Penetrating into the soil is probably a little bit difficult.
When the quick-drying cement exceeds the surface of the gravel, the concrete pouring truck stops pouring the place and allows it to flow down the slope.
But as it flowed down, Jiang Yan Hai saw that its speed gradually slowed down.
15 minutes, the time it takes from the time it starts mixing in the mixer truck to the concrete is 15 minutes. This time is slower than some quick-drying cements, but what makes Jiang Yan Hai a little surprised is that after a special chemical reaction, a liquid with such a high moisture ratio solidifies directly, just like water is directly frozen into ice.
"This is our new quick-drying cement. It can penetrate into many fine gaps. Some river sand that has not been filtered can penetrate directly and then solidify within 15 minutes. And it is very strong!"
"The strength is similar to some special cements. If it is combined with steel bars, its strength is not as strong as the previous super-strong reinforced concrete buildings, but it is only one level lower than ordinary civilian buildings." The person in charge of the project gave a general introduction to Jiang Yan Hai.
The person in charge of the project did not directly water the entire 30-meter-wide slope section, which was unusable. Instead, he first poured a slope road with a width of about 6 meters, which was enough for use.
15 minutes was enough. Several concrete pouring trucks worked together. In 2 hours, a 6-meter-wide slope road across the Great Wall foundation appeared here.