Chapter 91 The secret of the secret room

Four died at once?

If Brother Kai didn't kill him, something must have happened in the building!

Combined with the wet soil falling from the cracks on the top, Gu Ji couldn't help but think of the water all over the ground he saw in the underground fire control room.

You must know that one of the causes of subsidence is the extraction of underground fluid resources.

For example, oil, natural gas, groundwater, etc.; in the 1920s, Xia State's Shanghai, Jinzhou and other places caused land subsidence due to concentrated groundwater mining in urban areas. The North China Plain also caused large-scale land subsidence due to groundwater falling funnels.

Gu Ji is still unable to determine the specific cause of this natural disaster.

Once it is really related to fluids, then if you fall into a pit, you are likely to encounter groundwater backflow!

"Creak..."

While he was analyzing the crisis, several tiny crackling sounds floated into his ears.

"Dong Bai, be careful!"

Liu Ye raised his head and shouted, then immediately pulled Bai Maoliang and flew to the side.

And Gu Ji seemed to have bulging eyes on the top of his head. He didn't even look at it. He just expanded his outer ears slightly and slid back to dodge.

Boom!

A huge boulder fell from the ceiling overhead, and along the huge triangular crack, a large amount of dark, wet soil fell, and soon it piled up into a pile of earth half as high as a person.

Bai Maoliang stood up in confusion and immediately looked at Gu Ji.

"Wang Xueming, is this place going to collapse? We have to leave quickly!"

"Don't worry, Mr. Bai, this is just the deformation of the concrete structure caused by the second vibration of the building. The ceiling is covered with a large number of steel bars and has strong tension. It won't collapse for a while..."

As Gu Ji spoke, he leaned over again and picked up a handful of the soil that had just fallen. The moisture was even greater than before.

About fifteen minutes or so.

There was a rush of footsteps in the fire stairway, and a thug held on to the door frame and shouted:

"Oh no, Mr. Bai, there's water. The basement is full of water. It's already flooded to the 6th floor of the building!"

"What!?"

Bai Maoliang's expression changed. There was really a wolf in front of him and a tiger in back. He had just finished dealing with the warlord faction, but he didn't expect to encounter another flood.

They haven't found a way out yet. When the water comes up, won't they be drowned alive?

"Wang Xueming, what should we do now? Is there any way to get out as soon as possible?"

"Yes, yes, but it depends on how well Mr. Chen and the others collect their tools..."

Gu Ji answered on his lips, but his eyes fell on the level countdown in the upper right corner.

When he went to the basement fire control room, the water had just reached the floor. Now, more than four hours later, it had poured into the fifth floor. In simple terms, it would take nearly a day to reach the top floor.

The premise is that the pouring speed remains unchanged.

"Do you know how fast the water is flooding?"

"This... I don't know. Brother Kai just asked me to come up and report the news in advance."

"Go down and make a mark, use the stopwatch on your mobile phone to see how long it takes to cover one meter, and report back every half hour!"

"What are you doing standing still! Go quickly!"

Seeing the thug standing there scratching his head, Bai Maoliang was so anxious that he went up and kicked him.

Half an hour later, the thugs came back again, with a clear look of panic on their faces and making it difficult to breathe.

"The water has reached the 8th floor, almost one meter in four minutes!"

"Why did it suddenly change so fast? Wouldn't it only take more than 6 hours to flood here?!"

Mr. Liu was also frightened and his heart tightened, as if a cold snake had climbed up his back.

Gu Ji raised his head and stared at the broken ceiling. The water was flooding much faster than he expected. It seemed that the second subsidence accelerated the inflow.

Cold sweat broke out on Bai Maoliang's forehead, like an ant on a hot pot. He walked anxiously back and forth in the office, faster and faster, and asked a few questions from time to time.

Ke Gu Ji's answer is: Without tools, it is impossible to predict the time of self-rescue.

"Why hasn't this Chen Jianhe come back yet?"

"I'm coming!"

Just when Bai Maoliang was on the verge of an explosion, a burst of chaotic footsteps finally came from the corner of the building.

Chen Jianhe, a fat man with a big head and big ears, walked in with a group of group executives and employees, holding various building materials and tools in their hands.

Thanks to this guy being the manager of the real estate department, otherwise it would be really difficult to find these things quickly in a building full of ruins and in extremely dark conditions.

"Brother Wang, do you think these things can be used?"

"Okay, you go and bring a big table over."

Gu Ji picked up a few steel pipes, took out two of them, passed iron wire through the hollow interior, connected them in series, and then wrapped a few turns of tape around the joints to secure them.

Wait for the staff to move the table over.

He stepped on it and came to the bottom of the crack.

Looking at the crack where mud was still falling from time to time, Bai Maoliang's eyelids twitched wildly and he said worriedly.

"Wang Xueming, what are you doing? Don't collapse the roof!"

"Don't worry, Mr. Bai, I'm just trying to see how deeply I'm buried."

As he spoke, Gu Ji inserted the steel pipe into the soil. Pan Xinli, who was standing by, saw that he was struggling and jumped on the table to help.

Along with the sparse soil, the two steel pipes were finally inserted into the soil, "Give me two more."

Chen Jianhe blinked, a little confused.

"Brother Wang, are you trying to use these steel pipes to reach the ground?"

"is there a problem?"

Gu Ji lowered his head and answered while wrapping the tape around it. This was the simplest method they could achieve at the moment.

"Although I, Chen Jianhe, have little knowledge, I also know the relationship between soil solidity when digging foundations. Generally speaking, the thicker the soil layer, the greater the soil bulk density, and the harder and denser the soil."

"Apart from the fact that you may encounter stone slabs along the way, as the steel pipe continues to penetrate deeper, the soil shear force, compression force and friction force you experience will become greater and greater, and the required force will increase exponentially!"

Perhaps because it was related to his own field, Chen Jianhe straightened his back and sounded preachy.

Bai Maoliang seemed a little doubtful.

Gu Ji's expression was very calm.

"Manager Chen is right, but you have overlooked one point. Soil hardness is mainly determined by soil texture, capacity and moisture content, of which moisture content has the greatest impact; high moisture content, high compressibility of soil, lower strength, and greater

So soft, and besides, didn’t I ask you to find a jack?”

As he spoke, he inserted the third steel pipe into the soil.

Chen Jianhe immediately picked up a handful of soil and squeezed it gently. It was indeed very moist. He nodded at Bai Maoliang and finally smiled awkwardly.

"Brother Wang is so knowledgeable. It's me, old Chen, who has mastered the art."

"Hurry up and help!"

Seeing that this method was feasible, Bai Maoliang urged the group's senior management and employees to get started.

After a while, Gu Ji inserted four steel pipes into the soil. When it was the turn of the fifth pipe, the manpower gradually became too much, as if it had hit something.

This is also what worries him the most.

The employees on the side were gasping for air one by one. Even Bai Dong and Liu Ye, who were not working, were breathing louder and louder. It seemed that the oxygen in the building was gradually running out!

Gu Ji immediately arranged for his men to bring the jack and place it at the bottom of the steel pipe.

"You reach out and hold on to the connection, be sure to hold it steady!"

Everyone nodded.

As Gu Ji pressed the mechanical rod, the steel pipe continued to drill upward into the soil. Although it was very slow, it was at least moving bit by bit. At the same time, a lot of muddy water continued to flow down the inside of the steel pipe and the iron wire.

The fifth root, the sixth root...

Until the seventh steel pipe is added.

With a "snoring" sound, the employee responsible for controlling the steel pipe suddenly felt a loose feeling in his wrist.

"Brother Wang, the steel pipe seems to be through!"

Gu Ji quickly removed the jack and pushed upwards with all his strength. As expected, the steel pipe showed no resistance.

So he hurriedly lay down on the table and looked up along the opening of the steel pipe, but unfortunately it was dark inside.

Bai Maoliang's eyes shone.

"Is it okay?"
To be continued...