This light-burning creature that looks like a river shrimp is sensitive and timid, and it seems that it is very jealous of a behemoth like Ning Xiaofan, Ning Xiaofan dived to the rock wall, and the originally dense light points escaped far away, and the light points that had already drilled into the gap drilled faster.

Feeling that these glowing water creatures were not in any danger, Ning Xiaofan's heart was relieved, and he pressed the button at the end of the scanner handle, and a blue light emitted from the front of the scanner.

The scanning of the rock wall didn't take long, not nl0 minutes, Ning Xiaofan finished the scanning, and then returned to the shore the same way.

The scanned data is stored in a chip sealed in the handle, which is removed and then connected to the tablet via the adapter socket.

The area scanned by Ning Xiaofan is not large, only about three square meters, the data is connected, and soon, the tablet computer will show the three-dimensional pattern of the underwater rock wall.

The thickness of the scanned rock wall is calculated to be 5. 6 meters, however, the crack at the site of the crack extends into the rock wall, forming several criss-crossing fault zones that not only encompass the area scanned, but also extend beyond the scanned area.

Ning Xiaofan observed the three-dimensional diagram for a while, and had a belly plan in his heart, and after a CAO work on the tablet, dozens of red dots appeared in the three-dimensional pattern.

Most of the onlookers couldn't understand the three-dimensional picture displayed by the tablet, but Aunt Xiang saw a little clue and couldn't help asking: "Xiaofan, do you want to blast underwater?"

"Well, underwater blasting, I'm calculating the blasting point."

The fat man and the others heard Aunt Xiang and Ning Xiaofan ask and answer, and then they remembered that Ning Xiaofan, the captain, had a blasting specialty.

It's just that the technical requirements of underwater blasting are extremely high, and the fat man sighed: "I said brother, this underwater blasting is not a job that ordinary people can do, you can't do it, don't get yourself into it." ”

The fat man has always been a crow when he speaks, Ning Xiaofan is too lazy to respond, and focuses on calculating the blasting point

Calculation, correction, as the red dots displayed in the three-dimensional map continued to increase and decrease, which lasted for more than half an hour, Ning Xiaofan exhaled and said, "Okay, it should be okay." ”

After saying that, he casually opened the box next to him and began to prepare the underwater blasting tools.

As a top-level blasting expert with a high level of professionalism, Ning Xiaofan's preparations for coming out this time can be described as comprehensive, and naturally he will not miss underwater blasting equipment.

Waterproof drills carrying high-energy batteries, jingmi detonators that can withstand high water pressure, and water infiltration initiation devices, etc., and of course, high-yield homemade miniature bombs have to be deployed on site.

Deploying bombs is an extremely dangerous job, Ning Xiaofan is very confident in his deployment level, but the fat man and the others dare not watch anymore, they hide far away one by one, and only Aunt Xiang is alone by Ning Xiaofan's side.

Seeing Aunt Xiang staying with her, Ning Xiaofan was a little moved in her heart, but she was still worried about an unexpected situation, so she kindly reminded at the moment: "Aunt Xiang, you don't have to stay here, find a place to hide." ”

"You're not afraid of danger, what am I afraid of? I'll be with you. Aunt Xiang smiled slightly and rejected Ning Xiaofan's kindness.

Underwater fixed-point blasting is not difficult to install and detonate, but it has extremely high requirements for the equivalent required for blasting.

There are a total of 62 blasting points designed by Ning Xiaofan, and each blasting point is required according to the thickness of the rock wall.

In this way, the technical requirements of the process of blending ** require superb technology, as well as a rigorous attitude, and it also takes a long time.

Ning Xiaofan still uses C4, wrapped in rubber, waterproof, easy to adhesion, shooting directly at ** will not detonate, the only way to detonate is a detonator, used for underwater blasting, the safety factor is undoubtedly much higher.

Ning Xiaofan brought a lot of ready-made C4, carefully separated and mixed according to the required amount, plugged in the detonator, and then installed them into the detonating device.

The work of deploying ** is very complicated and time-consuming, and it takes more than 3 hours in total.

When it was ready, Ning Xiaofan carried a waterproof bag containing 62 miniature bombs and underwater blasting tools, a roll of fixed rope on his back, and there were no extra words, just nodded to Aunt Xiang, and then turned around and walked towards the water.

Maybe it was Ning Xiaofan's calmness that affected everyone, but the fat man and the others who were hiding far away couldn't help but come to the water's shore and observe the underwater situation one by one.

With the help of the reflection of the diving lamp, everyone could clearly see Ning Xiaofan's movements underwater.

Before diving to the underwater rock wall, Ning Xiaofan first used an electric drill to make a few holes in the rock wall, installed a fixing ring, hung a rope, fixed his body, and then continued to use an electric drill to make blasting holes in the rock wall.

With a thickness of more than 5 meters, the length of the drill bit is obviously not enough, but after Ning Xiaofan's calculations, he is very confident that he can blow through this rock wall.

62 explosion points, 25 drill holes that require shallow drilling, 7 deep drill holes of more than one foot, and the rest of the blast points can be installed on the surface according to different positions.

Carefully measuring the drill point with a tape measure, the drill repeatedly punched holes, and it didn't take long for all the holes that could accommodate the blasting device to be completed.

The 62 miniature bombs were all numbered, in numerical order - after being installed at each blasting point, they were carefully checked again, and no mistakes or omissions were found, so Ning Xiaofan turned around and returned.

surfaced, and without waiting for Ning Xiaofan to climb by himself, the fat man, Chen Biao and others pulled him ashore with all hands and feet.

"Got it?" The fat man asked slightly nervously.

Ning Xiaofan smiled and made an "ok" gesture.

The next thing is to detonate, Ning Xiaofan motioned for everyone around him to leave the shore and find a place to hide on their own.

"Xiaofan, come over here." Aunt Xiang leaned out half of her body from behind a bell stone and beckoned to him.

Ning Xiaofan walked over as he said, he could roughly measure the explosion range, but he was not as nervous as everyone else, just standing beside Aunt Xiang.

Taking out the remote control detonator, Ning Xiaofan looked around, and after seeing that the fat man, Hou San and the others had already hidden their figures, he gently pressed the red SE button on the remote control.

"Bang!"

A dull sound came from the water, and it was not loud, and it was easy to ignore it if you didn't listen carefully.

However, everyone was paying a high level of attention at this time, and they all heard the sound coming from the water.

No big moves? The fat man and the others changed slightly, and a thought came to their hearts, it couldn't be a blasting failure, right?

Aunt Xiang was also surprised at this time, and couldn't help asking, "Xiaofan, what's the matter?" Why is the explosion so quiet?"

Ning Xiaofan smiled and said, "It's just beginning, it's not over yet." ”

As soon as the words fell, they only heard the muffled sound of "bang bang bang" sounding two or three times in succession, and the sound was still not loud, but everyone clearly felt a tremor under their feet. Concussive impact blasting! This is a unique skill of Ning Xiaofan engaged in underwater blasting. The first is that water infiltrates and detonates. Underwater detonation, open flame guide cable naturally cannot be used, so electrical conduction detonation is generally used.

However, the electrical conduction blasting device is a prohibited item, and it cannot be bought on the market at all, although Ning Xiaofan is an expert in bombs, he has left the system, and it is naturally impossible to buy such prohibited materials. Moreover, the electrical conduction device is not an ordinary complex tip, the conductor connects every blasting point, and it also needs a secret calculation instrument, and the accessories and wires in it cannot be loaded in a box, and Ning Xiaofan cannot carry it at all with the weight he carries with him.

What's more, large-yield blasting also requires a large number of **, and the micro blasting device configured by Ning Xiaofan cannot be matched with electrical conduction equipment.

All in all, with Ning Xiaofan's blasting method, he can only use the soil method he designed himself to successfully blast.

Then, "underwater infiltration detonation" is one of the unique skills invented by his Jing Zhan's blasting experience.

According to common sense, we all know that underwater blasting cannot be carried out with an open flame guide cable, and electrical conduction equipment cannot be obtained, so if you want to detonate a bomb underwater, you can only find another way.

Ning Xiaofan's method is to use "water" to detonate the bomb with water!

Can water detonate a bomb?

If the fat man knew that Ning Xiaofan was using this method, it was estimated that he would spray Ning Xiaofan's face with saliva, according to common sense, ** can't be used by chao, can it be detonated? Isn't that a fantasy?

However, common sense is common sense after all, and many people do not know that gunpowder stained with a small amount of water will produce a certain boiling point, which will cause gunpowder to produce a chemical reaction, directly boil, and even burn.

Therefore, Ning Xiaofan designed a conduit that can be detonated after combustion with the help of the boiling point generated by the mixing of gunpowder and water.

Water penetration technology is not complicated, Ning Xiaofan only needs to install a detonating tube equipped with gunpowder and water in each miniature bomb equipped with a detonator, and then paste a small sensor piece, and finally through the sensor remote control, the water penetrates into the gunpowder, and finally detonates the detonator, and the remote control detonation reaction only takes one second!

It's a very old-fashioned technique, but it produces great results.

As for the second unique activity, it is "shock blasting".

Concussion blast! In short, it is to use the shock wave generated by the explosion to achieve the effect of concussion.

The rock wall more than 5 meters thick, using conventional methods, it is estimated that 50 kilograms may not be able to blow through, and the destructive power of 50 kilograms **, its explosion range is very terrifying, it cannot be blown through, but it may collapse the rock wall. And the collapse of the rock wall not only can't solve the problem, but it will bury this body of water if it is not good, and in the end, it is estimated that Ning Xiaofan and others will have to be buried alive if they are not stoned to death by the rock.

With this premise, barbaric blasting is not advisable, and only a more gentle blasting method can be used, so that the technical requirements are not generally high.

According to the data of the scanned rock wall, Ning Xiaofan designed a point with an area, calculated the explosion point through the internal structure of the scanned rock wall, and then achieved the purpose of decomposing the internal structure of the rock wall through the energy generated by the explosion point......