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According to the plan, the piling will be completed today, but these piles will not work, and we must find a way to solve them. Xu Ling thought about it and felt that it was inappropriate, because not far from the south was Longzhu Mountain, and if it was the underground river, there would be a big problem.

"Instructor Shen, do you think it's okay to get out of the way here? Look, you can avoid it by moving five meters in each direction. Xu Ling pointed to the four sunken piles in the drawings and moved them out in four directions.

"But our steel frame is already being customized, and if we change the foundation, the steel frame on top will definitely be useless. Instructor Shen said to Xu Ling.

"The rest won't matter, just these three rows. Uncle Li pointed out to Xu Ling.

Xu Ling also scratched his head, he was not a professional in this thing, and said to them, "I'll ask Yuan Gong." I didn't expect Uncle Li to interject, "No need to ask, Lao Yuan said that if there is either a dark river or something like that, it will be a cliff-like depression." If you break through, you can't do anything unless you use riveting to go down one by one. Uncle Li shook his head at Xu Ling and signaled that he had already called.

"What can be done now?", Xu Ling asked Instructor Shen.

With the help of other complete piles, the foundation is borrowed. Instructor Shen obviously has a case in the abdomen.

"It's a good way to do it, it's easy and it's easy to save money. Xu Ling was also amazed, and he was impressed by Instructor Shen in his heart. Just as Xu Ling and the others were talking, suddenly there was a rumbling sound in the four places where the concrete piles had been swallowed, and the whole thing seemed to be affected and vibrate! The workers and soldiers who were working immediately ran back, and one of the workers operating the pile driver was probably too panicked, and he fell as soon as he got to the ground, and his workers did not dare to go back to save him when they saw it. The earth trembled, and the stakes on the ground rolled. The two fighters looked back and saw that someone had fallen, and did not hesitate to go back to help them. Xu Ling and the others also shouted at them to speed back and stay away from the swamp.

The shaking of the piling position and the swamp next to it became more and more violent, and even the water-bearing silt in the swamp splashed up like boiling, and the pile driver suddenly fell to the ground, and with a bang, it broke two piles, and it was also a little deformed. The swamp itself is full of birds, all foraging for food or chasing each other, and when the shaking begins, they immediately rise into the sky, but they do not fly away, circling and chirping at low altitudes.

Suddenly, the place where the four piles disappeared suddenly disappeared, and the soil next to them also sunk down in that direction, Xu Ling and they were taken aback, fortunately, all the personnel had come back, and this was also if there was no vibration warning, as long as it was inside, there was no luck!

"Ah!", the pile driver worker, who had just been helped back by the soldiers, turned pale with fright at this situation, and would have fallen to his knees if his legs were not supported. It's not gratitude, it's scared, trembling with fright. When he came back to his senses, he thanked the two soldiers vigorously, saying that he would invite them to dinner in the evening, otherwise today's old fate would be explained.

When the others saw this, warm applause rang out, and Xu Ling also smiled and stretched out his thumb, this people's soldier didn't scream in vain, it really depends on them at a critical time!" "Instructor Shen, I can't help but say, I have dinner at the Fish Pavilion Barbecue Restaurant today, count it mine!", Xu Ling said to the soldiers.

"Good!" burst out, the soldiers smiled, they had long heard that the dishes in it were a must, and many people from other provinces would come to order a table, which showed its deliciousness.

"You rabbit cubs, I'm here to say, if you can't finish it on time, I'll settle accounts with you! Also, in the future, if you have a snack and see anything in the village that needs help, and it affects safety, give me a hand!", Instructor Shen also had a happy face, and he didn't dare to eat alone, which had a bad impact, but Xu Ling's treat, or all, then another story. This day I listen to others say that it is delicious, and my heart is itchy.

Standing in the distance, you can occasionally see the dirt rolling down where the depression has fallen, but you can't hear a sound from the fall. After almost all the qi qi qi calmed down, Xu Ling took the lead and walked forward slowly, this time it was a subsidence or something, and he didn't know until he was close.

When they reached the edge of the subsidence, everyone looked at the bottomless black hole in front of them in shock! Just in the middle of the four piles, a bottomless round hole was at the bottom of the pit similar to the bottom of the pot, and now there was water vapor rising from it, and the soil next to it fell down, and from time to time the silt on the wall of the cave collapsed downward, and there was no sound!

"God, how did this come about? What's down there? How is there so much space. Uncle Li also felt incredible.

"I've seen sinkholes in the southwestern mountains, and I've gone down from sinkholes to collapsed potholes. But this hole made me feel very uncomfortable. Instructor Shen said with a frown.

Xu Ling stepped forward and approached the edge of the collapsed hole, and a cold breath hit him, accompanied by water vapor, goosebumps appeared on his body. Looking at the bottomless black cavern, a terrifying aura spreads. Xu Ling's spiritual power probed downward, but unfortunately the detection distance of one or twenty meters was full of mud on the cave wall, and nothing was found. It's just that the lower it goes, the lower the temperature, and the water vapor is also abnormally cold.

Let's take a look at each other, what should we do if a hole appears in this strange way? Xu Ling looked at Instructor Shen, they were mainly responsible for this matter, and it was up to them.

Instructor Shen thought for a moment and said to everyone, "Take a rest first, I'll make a call." After speaking, he took out his mobile phone and dialed Professor Sima and them.

After a while, Professor Sima and Professor Zhang all came, and they were also surprised to see this cave. Professor Jetson came back and even brought a set of wired detection equipment: a miniature camera and receiver, and a battery. As soon as the lamp was ready, a few channel steel were put on the upper part of the pothole, and then a thick wooden board was laid, and the person stood on it and slowly lowered the camera with a hand-controlled electric switch.

The front part of the more than ten meters because of the light can be, so most of it is relatively clear, the cave wall is full of potholes, and the loose soil is still falling down, and the mud from the swamp is pouring out in some places, but the sound of falling is not audible, even if there is a sound collector of the camera machine qì will be the same.

Further down to about 20 meters, only the light irradiation range of the machine can be seen, and the rest is pitch black, and the soil turns from black to black and yellow, which should be over the humus part. However, there is no shortage of mud gushing out, and some of it falls on the camera, blocking part of the view.

After descending more than ten meters, something suddenly appeared in my sight, it was a stone, it should be a collapsed stone, uneven, with teeth and sharp corners, not thick. Xu Ling guessed that it might have been broken after the pile was driven and shaken, and it couldn't bear the weight on it before there was this collapsed cave. But what was the shaking before the collapse? It stands to reason that there would not be such a big movement.

The camera didn't descend quickly, but slowed down as it rotated, and Professor Jetson wanted to know some information about the swamp's formation, hoping to find something from here.

Slowly, everyone noticed that the camera began to become more and more unclear, and when they looked closely, it turned out to be a thin layer of ice on the mirror in front of the lens, blurring the picture, and the operator looked at Professor Jetson and asked what to do.

Jetson reluctantly gestured to come up. Xu Ling went over to catch it, and found that the whole small machine was cold and biting, with a layer of hoarfrost on the outer surface, and there was no way to go down, there was no such thing as a thermal insulation lens!

Uncle Li thought about it and said a solution to Jetson, "When we are cold in winter, we usually turn on a high-incandescent lamp to heat up quickly." However, if you want to pull the electricity, the battery power at this point must be insufficient. Jetson agreed, and the hole had to be explored today. It is very dangerous for this incandescent lamp to be unprotected, so Uncle Li uses a larger, harder wire as a bracket to let the incandescent lamp shine in front of the camera. This will do the trick.

Sure enough, there was no problem in going down to the position just now, and after such a little time, the mud dripping down was also reduced, making it much easier for the operator. However, this cable is only 50 meters long, I don't know if it is enough.

When you get down to about 40 meters, the black and yellow soil starts to change again, turning to black. This is also too strange, Xu Ling is also puzzled, it stands to reason that the further down there should be a light yellow or to red soil, gravel soil is the change.