Police Detective

Many places where landslides occur have blocking nets, commonly known as mountain protection nets. They are generally made of high-strength, corrosion-resistant metal or polymer materials and have a wide range of uses.

Almost all mountain road construction requires the use of protective nets, and the required strengths vary. Especially in Yuzhou, such things can be purchased everywhere.

"I took a look," Pang Hongshan said, "If verification is needed, further excavation in the area needs to be carried out."

"Hasn't a lot of soil been dug away?" Bai Song was a little confused as to why further digging was needed.

"Chief Bai," Pang Hongshan said.

When Bai Song heard Pang Lao calling him, he immediately understood what was going on.

Leave professional matters to professionals. What he said here are really amateurish comments.

"What excavation equipment is needed? What size of excavator is it?" Bai Song immediately changed his tune.

"We don't need an excavator, we do." Pang Hongshan looked around: "It requires 10 to 15 workers, just have picks and shovels."

"This is simple, too simple." The local leaders who accompanied us immediately started making arrangements.

The workers came very quickly, almost 20 workers came, each with their own things to do.

The dialect of these people is relatively strong, and Mr. Pang cannot understand it. There are two policemen here to help translate, and the excavation progress is very fast.

Pang Lao also found a shovel and started doing it himself. No matter how deep he dug, others would dig nearby. Not only that, he also acted as a supervisor.

These workers worked very quickly. In less than an hour, they dug to the depth Pang Lao needed, so he let these workers go first. The local responsible comrade went to settle the bill and sent the person away.

The main body of this mountain is a rock layer. After digging so much soil, it is just full of rocks and cannot be dug out.

"Look", due to Bai Song's previous suggestion, Pang Hongshan also respected Bai Song a little: "Although the excavator has dug away extra soil, it can still be determined that this area of ​​​​the head has more water seepage than other places. Much larger. There is no significant difference in the terrain here, so the difference in water seepage must be artificial. "

"Can pouring water in advance cause landslides?" Bai Song didn't understand.

"Of course this won't work, but it depends on how the water is added. If pouring water cannot achieve the effect, you can use high-pressure equipment to pump the water to the depths," Pang Hongshan said: "There are no traces of the use of explosives here. , but the abnormal water seepage in the upper edge area is very obvious. If we expand the search range, we should be able to find traces of the fixed mountain protective net. The level of the protective net he uses will not be too low, and the required fixed piles will definitely be driven. It’s relatively deep.”

"High-pressure equipment to pump water?" Bai Song measured it with his hands: "Is this a small machine?"

"It's impossible," Pang Hongshan said: "If you want to create such a landslide, although the terrain here can create the conditions, you still need more professional equipment."

Pang Hongshan stepped back, roughly estimated the terrain here, and pointed to five directions: "These five places are the most suitable for fixing the net piles."

Bai Song couldn't see any of the five places pointed by Pang Lao, but everyone else here also understood what they should do at this time, and they all took action.

Pang Hongshan himself, still holding the small hammer, continued to search for traces.

"Is this person very professional?" Bai Song asked: "Mr. Pang, according to your experience, what kind of professional level is required to achieve this level?"

"Not necessarily." Pang Hongshan shook his head: "I do more theoretical research. Let me give you an example. If you are in a place like this, just like now, rock layers have been dug out in many places. You can see the beauty here. ?"

"Not good." Bai Song didn't understand what these broken stones were worth seeing. Although the colors were different, they were all stones.

"Look here, the upper part of this stone is a layer of leopard skin-shaped dolomitic limestone. Well, you may not understand it, but the iron sandstone here is very interesting. This is a weathering crust. These two The weathering crust between the rock layers is caused by the Qinyu Movement, which is not easy to see in geology. This small layer represents 20 million years." Pang Hongshan knocked casually with a geological hammer: " It’s common in the East, not so common here.”

"2000, ten thousand years?" Bai Song was stunned for a moment.

"Well, and this crustal movement happened a billion years ago. If we didn't dig so deep this time, we might not be able to see such a beautiful place. Of course, most people don't know this kind of beauty. I think, the person who designed this People, he doesn’t understand, but it actually pushes the water to such a deep level. The level of engineering here is higher than mine.” Pang Hongshan stopped talking about science: “Although I am not an expert in construction, I do know a little bit. , this person is probably specialized in road and bridge maintenance, etc. According to my personal opinion, this person does things in an experienced way and does not seem to be done by young people. "

Theoretical level and construction level are two different things. A senior engineer may not know how to mix concrete better than an ordinary migrant worker.

"That" Bai Song was about to ask, but someone shouted over there and found a buried steel pile. It was already underground, and it had been covered with a layer of soil due to rain. If you hadn't looked around very carefully, it would have been there. Impossible to discover.

Upon hearing this, Pang Hongshan immediately stood up and walked over there, and Bai Song quickly followed.

The slope here is relatively steep. Pang Hongshan is already old and has been squatting on the ground for a long time. Suddenly, the blood supply to the brain is insufficient. He stumbles and is about to fall. Fortunately, Bai Song is quick and quickly goes over to stand firm and hold on. He picked up Mr. Pang and slowly helped him up.

When Mr. Pang pointed out five directions just now, Bai Song also wanted to look for them, but he still stayed here because he was afraid that something like this would happen.

"Thank you, thank you." Pang Hongshan rubbed his temples and smoothed his chest: "I'm getting older..."

Speaking of this, Pang Hongshan looked at the steep slope here. The soil had been dug away, and all that was exposed were stones. If he rolled down from here, he would be in trouble at his age!

"I'm fine." Mr. Pang closed his eyes hard and shook his head slightly: "Thanks to you, being young is good."

"You're welcome, I'll help you over," Bai Song said.

…

This is a steel nail driven into the soil. Just this steel nail can confirm one thing: Lin Liang's death must be man-made.

If you find this one, there must be at least one more.

"Check the tensile strength of this anchor, conduct destructive inspection, and check the construction methods and construction machinery." Bai Song gave the order: "File a case immediately. It is not yet certain that it is against Lin Liang. The reason for the case is the crime of endangering public safety by dangerous methods. ”