A concrete tanker truck drove in the dark while talking, and a large amount of concrete poured down in the roar, burying the wellhead tightly, Zhou Yun and Ye Han glanced at each other, and the two of them relaxed at the same time.

The mission continued, and one by one the wellheads that were either blown up or intact were found, and one by one they were sealed by the military, even if the giant ants were good at digging holes, they did not want to dig through the solid concrete.

However, it was clear to everyone that it would only be a matter of time before the giant ants could dig new passages and re-enter the city with a little effort.

The situation is still grim, and it is far from time to relax!

The mission went so smoothly that Ye Han began to be suspicious, and when the convoy passed through an intersection, the military suddenly reported that a well had been found in the middle of the street.

Ye Han immediately checked the tablet, but he didn't find any signs of the well at this intersection, and couldn't help but be puzzled: "Old Zhou, when is this picture, is it accurate?" ”

"I don't know!" Zhou Yun said innocently, "Let's go, go over and have a look!" ”

The armored car drove to the vicinity of the well, and Ye Han checked with the help of the light probe of the headlights, and saw at a glance that there was an intact manhole cover in the middle of the street.

"Sealed or not?" Ye Han asked.

"Let's go, let's take a look." Zhou Yun opened the door and got out of the car, but before he reached the well, another convoy rushed to the vicinity.

Several soldiers jumped out of the car, and the officers led by them saw Zhou Yun and Ye Han and saluted politely: "Hello, this well is our mission." ”

Ye Han suddenly realized: "I see, no wonder we don't have it on the drawings!" ”

Zhou Yun also put his mind at ease and said with a smile: "That's good, we just saw a well that wasn't on the drawings, and we didn't have a look at it in our hearts." ”

The captain officer also smiled: "Understood! With a wave of his hand, several soldiers immediately rushed to the well and quickly lifted the manhole cover.

A soldier whispered: "Company commander, no problem!" ”

The captain nodded: "Go!" ”

The fighters boarded the car, and the convoy quickly left.

Ye Han was confused by this scene, and asked inexplicably, "Why is this leaving?" They don't seal the well? ”

Zhou Yun also felt strange, and when he walked to the well, he was dumbfounded, and shook his head as he walked back, "No need, this is a communication well." ”

Ye Han then remembered that there was such a thing as a communication well, and he couldn't help crying and laughing for a while.

What the bureau gave Zhou Yun was the sewer pipeline design drawing, and the team just now must have taken the communication design drawing, but I don't know which communication citizen it belongs to.

According to this routine, the underground engineering design drawings of water supply, gas and other departments must also be checked by a special team!

Ye Han guessed right, and after a while, the team met another team.

How did he know that with the order of the municipal government, the municipal administration, water supply, environmental protection, communications and other industry departments involved in underground engineering have all taken action, and the underground pipeline construction drawings of Jingjiang City over the years have been found out without any mistakes.

A few hours later, the team sealed all the wells marked on the map, not even the ones that were blown up during the day. When the convoy and another team met close to the city walls, the deep underground directly below the team happened to be the main sewer pipe leading to the sewage treatment plant!

According to the analysis of the command center, although the giant ants are good at digging holes, the time for the giant ants to appear in the suburbs of the city is too short, and it is simply unrealistic to dig into the city from outside the city within 48 hours, so the biggest possibility is that the giant ants accidentally dug through the sewage pipeline in Jingjiang City.

During the day, most of the giant ants are drilled out of sewage wells, which is the best proof of this.

For this reason, the city government decided to blow up the main sewage pipeline, block the passage of giant ants into the city, and buy time for the evacuation of citizens.

The two convoys joined forces to find a well that led directly to the main pipeline, carefully sent a large number of explosives into the well, and prepared to blast the main pipeline.

It is curious that the military did not immediately blow up the main pipeline, but waited patiently under the orders of the joint command center after reporting the situation to the joint command center.

In the following hour, the command center received reports from several other teams that when all the drainage pipes leading to the outside of the city were ready to be blasted, the joint command center gave an order, and hundreds of fuel tanker trucks appeared on the streets of the city, pouring large quantities of gasoline into the drainage system through the reserved wellheads.

Later, the ignition order from the Joint Command Center was transmitted throughout the city via radio waves.

More than 100 fighters simultaneously fired incendiary catapults into the wellhead, and more than 100 wells were successfully ignited one after another, and the high-concentration oil vapor in the well exploded violently, and the column of fire in the well exploded dozens of meters high, and the column of fire illuminated half of the sky.

The team that had already prepared for the blasting also received the detonation order, and a large number of explosives buried in the ground were instantly detonated, and the ground collapsed instantly.

Even if humans were to one day drive the giant ants out of the Jingjiang River and reclaim the city, it would take a lot of money and labor to dredge the drainage system, and it would be easier to rebuild the new pipelines.

The gasoline burned fiercely in the well, and the scorching flames rushed along the drainage line, and it didn't take long for the underground drainage line to become a blazing dead place.

The giant ants that remained in the well were devastated, and even if they were not burned to death, they were suffocated by the burning that consumed a lot of oxygen.

At the same time, the rats and cockroaches that inhabit the drainage system also fell into bad luck, and the high temperature forced a large number of rats to the ground.

But at the moment, no one cares about what rats are on the streets, and let the swarms of rats run around.

Many people's kitchens and bathrooms smell of gasoline and then change to a strong burnt smell.

The vast majority of citizens learned of the incineration plan in advance through radio and text messages, and did not panic because of this, but immediately poured the tap water prepared in advance into the sewer to stop the flames from spreading indoors.

Indoor drainage pipes are generally PVC pipes with a diameter of no more than 10 centimeters, and the pipelines leading from the indoor to the sewage wells are basically made of this material.

Even in areas where the water failed to suppress the flames, the PVC sewer pipes buried underground quickly melted and destroyed in the high temperatures, and the collapsed sediment immediately blocked the drains and prevented the fire from spreading to residential buildings, and only a few buildings caught fire.

The fire department, which had been prepared for the fire, acted immediately to extinguish the fire as quickly as possible.

Despite the preparations, the incineration still inevitably caused casualties, but if the ants were not eliminated in the drainage lines, even if all the sewage wells were sealed, the giant ants would be able to dig a road from the ground to the surface!