At the beginning of the fire to save people, I was broadcast live as a firefighter

There was an instant stir in the Ping An Hotel.

The man who has been busy in the kitchen keeps apologizing to everyone.

The diners also understood the man's feelings very well, leaving the restaurant one by one.

Li Xiao hurried back to the fire squadron without stopping, and the fire squadron was already in chaos.

Since he came back late, only one fire truck in the entire squadron was on standby.

He quickly put on his equipment, got on the fire truck and set off in the direction of Changqing Tunnel.

Inside the fire truck.

Everyone's expressions were very serious, because such a large-scale disaster rarely happens.

What's more, they knew that all 6 fire squadrons in the city of DG were dispatched.

And when he asked for support from the fire squadron in the township below.

They clearly understand how dangerous this disaster is.

While helping Mo Xingwan, Zhang Wenxin organized his equipment and reminded everyone:

"This time it is expected that at least 50 fire brigades will be dispatched from the townships below to come up for support."

"Including the six squadrons in our urban area, the number has exceeded 6."

"This mission will be very dangerous, you two rookies, Mo Wanxing and Liu Qiang, must be careful."

"Li Xiao, don't act impulsively for me. You must report to your superiors before doing anything!"

"I understand!"

in the live room.

"My God, what are all these firefighters doing together?"

"Didn't you hear the news? The Evergreen Tunnel collapsed."

"Liar, I just passed by there this morning to go to work."

"The news is so noisy now, how could it be fake?"

"It is indeed true. Traffic control has been carried out over there, and there is no way to enter the nearby roads."

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The fire engine was galloping all the way, and with the help of traffic control and traffic police comrades, several people soon came to the vicinity of Changqing Tunnel.

At this time, more than a dozen fire trucks were parked next to the emergency lane.

Some firefighters who came earlier had already begun to clean up the rubble and car wreckage outside.

Seeing the completely collapsed tunnel, Li Xiao was stunned.

The original tunnel entrance has been covered by gravel and traces of various explosions.

The large-scale collapse of the tunnel even affected the structure of the mountain.

A large amount of soil slid down the hillside, and the original retaining wall also lost its due effect.

Large pieces of retaining wall were washed down by the pouring mountain, covering a small part of the tunnel entrance.

At this time, a large number of firefighters are transporting the reddish-brown soil away.

A few researchers in white clothes and white engineering hats were rapidly analyzing the situation in the Changqing Tunnel with their computers.

The squadron leaders of the various squadrons who had already arrived at the scene whispered behind a few researchers.

"This Evergreen Tunnel is too old."

"The 30-year-old tunnel, even if the maintenance work is done in place, still has many problems."

"This is troublesome. It got stuck during the rush hour after get off work and school."

"According to the usual traffic flow here, the number of people trapped inside is not a small number."

"Another tough battle!"

"It's not easy to deal with our current situation."

During the low-pitched discussion among several squadron leaders, several computers beeped, indicating that the preliminary analysis had been completed.

Several squadron leaders immediately stopped communicating, and they leaned over to the researcher, wanting to see the analysis results as soon as possible.

The researchers quickly concluded:

"Based on sonar detections, and what we'd expect from system modeling."

The researcher hesitated for a few seconds, gritted his teeth and continued:

"It could be very bad, we simulated it more than 1000 times with the computer."

"The best result, the most stable central area ever reinforced, can still retain a safe area of ​​about 100 meters."

"In the worst case, the 1120-meter tunnel, except for the position more than 100 meters away from the northern entrance, has collapsed."

"For the remaining 85 percent of the simulation results, there is no distance within the tunnel to completely collapse, no more than 100 meters."

Hearing the research results, the hearts of all the squadron leaders thumped.

They knew that this time things were really serious.

Just listen to the researcher continue to say:

"Near the tunnel entrance on the south side, five cars rear-ended and rolled over, and the subsequent explosion directly damaged the main structure of the tunnel."

"The huge explosion triggered structural resonance, causing some already aging building structures to fall apart instantly."

He pointed to the schematic diagram of the computer:

"Look, the buildings of normal tunnels are segmented structures."

"Usually, segments are performed every 100 meters or 150 meters, just to avoid resonance in the main structure."

"However, the Changqing Tunnel has been built for more than 35 years. At that time, the integral pouring technology was used."

"Although the designer had innovatively provided mechanical support and protection for some nodes of the tunnel 35 years ago, the effect was minimal."

As he spoke, he drew an oval in the middle of the tunnel, covering a section of the tunnel.

"Only the reinforcement of the tunnel in the middle was done three years ago."

"It is reinforced with aluminum alloy and rma engineering plastics. Whether it is strength or extension, the performance is very good."

"So we speculate that the risk of collapse in this section of road that has been reinforced will not be very high."

"If other people can enter this section of the tunnel in time, then the safety factor is very high."

"As for other places..."

The researcher pursed his lips and didn't finish his sentence, but none of the people present were fools.

Everyone understands what the researcher wants to say.

Those who can enter the middle of the tunnel can survive safely.

The subtext is that those who can't enter will probably have a hard time surviving.

Thinking of this, everyone's hands and feet felt a little cold.

The length of an ordinary car is 5 meters, because the accident occurred in the rush hour with the most dense traffic.

Therefore, it is very normal for traffic jams to occur in the Changqing Tunnel.

The length of a car, plus the distance between two cars, adds up to 10 meters.

The total length of the Changqing Tunnel is 1120 meters, and there is a distance of about 110 meters from the north entrance without collapse.

In other words, the total length of the collapse of the Changqing Tunnel is about 1000 meters.

Even under the best of circumstances, the central 150 meters of the tunnel did not collapse.

Then the length of the collapse is also 850 meters.

By simple conversion, we can know that there are at least 85 vehicles on a lane.

Changqing Tunnel is a three-lane tunnel, which means that at least more than 250 vehicles are trapped inside.

Even with only one passenger and one driver in each car, the number of trapped people exceeds 500.

After getting this data, everyone felt a little dizzy.

At this time, a black commercial vehicle quickly stopped beside the emergency passage from far to near.

Two middle-aged men and an older man got off the commercial vehicle.

The old man looked a little old, but he was in good spirits.

The three of them hurried to the temporary command post. After learning about the specific situation, the old man's expression became ugly.

"Your fire brigade will start rescue operations immediately, and I will apply for emergency resources from the military region."

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