sabotage expert

This kind of light-emitting creature that looks like a river shrimp is sensitive and timid. It seems that it is very afraid of such a huge monster as Ning Xiaofan. And the spot of light that has drilled into the gap is drilled faster.

Feeling that these glowing aquatic creatures were not in any danger, Ning Xiaofan felt relieved, and pressed the button at the end of the scanner handle, and a blue light emitted from the front of the scanner.

The scan of the rock wall didn't take long. In less than 10 minutes, Ning Xiaofan finished the scan and returned to the shore by the same route.

The scanned data is stored in the chip sealed in the handle, and after taking it out, it is connected to the tablet computer through the conversion socket.

The area Ning Xiaofan scanned was not large, only about three square meters. When the data was connected, the tablet soon displayed a three-dimensional pattern of the underwater rock wall.

Through data calculation, the thickness of the scanned rock wall is 5 meters. However, the cracks located at the cracks extend into the rock wall, forming several criss-cross fault zones. The area not only includes the scanned area, but also Extends beyond the scan area.

Ning Xiaofan observed the [-]D image for a while, and had a clue in his mind. After some operations on the tablet, dozens of red dots appeared in the [-]D image.

Most of the onlookers couldn't understand the three-dimensional map displayed on the tablet computer, but Aunt Xiang saw some clues and couldn't help asking: "Xiaofan, do you want to explode underwater?"

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

Fatty and the others heard Aunt Xiang and Ning Xiaofan's question and answer, and then they remembered that Ning Xiaofan, the captain, has the expertise in explosives.

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

The fat man kept talking like crows, Ning Xiaofan didn't bother to respond, and focused on calculating the blasting point.

Calculations and corrections continued for more than half an hour as the red dots displayed on the [-]D map continued to increase and decrease, before Ning Xiaofan exhaled and said, "Okay, it should be fine."

After finishing speaking, he opened the box beside him and began to prepare underwater blasting tools.

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

Waterproof electric drills with high-energy batteries, precision detonators that can withstand high water pressure, and water penetration detonators, etc. Of course, high-yield self-made miniature bombs must be deployed on site.

Deploying bombs is an extremely dangerous job. Ning Xiaofan is very confident in his deployment level, but Fatty and the others dare not watch any more.

Seeing that Aunt Xiang stayed with him, Ning Xiaofan was a little moved, but he was still worried about something unexpected, so he kindly reminded him: "Aunt Xiang, you don't need to stay here, find a place to hide for a while."

"You are not afraid of danger, what am I afraid of? I will accompany you." Aunt Xiang smiled slightly and rejected Ning Xiaofan's kindness.

Underwater fixed-point blasting is not difficult to install, nor is it difficult to detonate, but there are extremely high requirements for the equivalent required for blasting.

Ning Xiaofan designed a total of 62 blasting points. After accurate calculation, each blasting point requires different equivalents according to the thickness of the rock wall, and each blasting device requires no more explosives, nor less. One point, accurate to the gram.

As a result, the technical requirements of the process of deploying explosives require superb technology and a rigorous attitude, and it takes a very long time.

Ning Xiaofan still uses C4, which is wrapped in rubber, waterproof, and easy to adhere. If you shoot directly at the explosives, it will not detonate. The only way to detonate is the detonator. It is used for underwater blasting, and the safety factor is undoubtedly much higher.

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

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

When ready, Ning Xiaofan carried a waterproof bag containing 62 miniature bombs and underwater blasting tools, and a roll of fixed rope on his back. Without any extra words, he just nodded to Aunt Xiangxiang, then turned and walked towards the water go.

Maybe it was Ning Xiaofan's calmness that affected everyone, Fatty and the others, who were hiding far away, couldn't help but come to the shore, observing the underwater situation with serious expressions.

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

Before diving to the underwater rock wall, Ning Xiaofan first drilled a few holes on the rock wall with an electric drill, installed the fixing ring, hung up the rope, fixed his body, and then continued to drill on the rock wall with the electric drill. Blast holes.

With a rock wall thickness of more than 5 meters, the length of the drill bit is obviously not enough. However, after Ning Xiaofan's precise calculation, he is confident that he can blast through this rock wall.

There are 62 blasting points, 25 of which require shallow drilling, and 17 of which are more than one foot deep drilling. The rest of the blasting points can be installed on the surface according to different positions.

Carefully measure the drilling points with a tape measure, and drill holes repeatedly with the electric drill. It didn't take long to complete all the holes that can accommodate the blasting device.

The 62 miniature bombs were all numbered. After installing them one by one at each blasting point in numerical order, they checked them carefully and found no mistakes, so Ning Xiaofan turned around and returned.

After surfacing, Fatty, Chen Biao and others quickly pulled Ning Xiaofan ashore without waiting for Ning Xiaofan to climb up by himself.

"Fixed?" Fatty asked slightly nervously.

Ning Xiaofan smiled and made an "OK" gesture.

The detonation was about to happen next, Ning Xiaofan signaled everyone around him to leave the shore and look for hiding places by themselves.

"Xiaofan, come here." Aunt Xiang leaned out half of her body from behind a stalactite and waved to him.

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

Taking out the remote control detonator, Ning Xiaofan looked around and saw that Fatty, Hou San and the others had hidden their bodies, and lightly pressed the red button on the remote control.

"Oh!"

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

However, everyone maintained a high degree of attention at this moment, and they all heard the sound coming from the water.

No big movement?The faces of Fatty and the others changed slightly, and a thought popped up in their hearts, could it be that the blasting failed?

Aunt Xiang was also surprised at the moment, and couldn't help asking: "Xiaofan, what's going on? Why is the explosion so quiet?"

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

As soon as the words fell, the muffled sound of "bang bang bang" sounded two or three times one after another. The sound was still not loud, but everyone clearly felt a tremor coming from their feet.

Concussive impact blasting!

This is Ning Xiaofan's unique skill in underwater blasting.

Unique skill one, water seepage and detonation.

For underwater detonation, open flame guide wires cannot be used naturally, so electric conduction detonation is generally used.

However, the electric conduction blasting device is a prohibited item, and it cannot be bought in the market at all. Although Ning Xiaofan is a bomb expert, he has left the system. Naturally, such prohibited materials cannot be purchased.Moreover, the electrical conduction device is not an ordinary complicated tip. The conductor connects each blasting point, and precision calculation equipment is required. The accessories and wires in it cannot be contained in a box, and Ning Xiaofan cannot carry it with the weight.

What's more, high-yield blasting requires a lot of explosives, and the miniature blasting device configured by Ning Xiaofan cannot be matched with electrical conduction equipment.

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

Then, "underwater penetration and detonation" is one of the unique skills invented by his superb blasting experience.

According to common sense, we all know that an open flame guideline cannot be used for underwater blasting, and electrical conduction equipment cannot be obtained. In this way, if we want to detonate a bomb underwater, we have to find another way.

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

Can water detonate a bomb?

If the fat man knew that Ning Xiaofan used this method, he would probably spit Ning Xiaofan's face. According to common sense, explosives can't be used even if they are wet, and can they be detonated?Isn't this a fairy tale?

However, common sense is common sense after all. Many people do not know that when gunpowder touches a small amount of water, it will have a certain boiling point, which will cause the gunpowder to undergo a chemical reaction, directly boil and even burn.

Therefore, Ning Xiaofan designed a catheter that can detonate after burning with the help of the boiling point produced by the mixture of gunpowder and water.

The water penetration technology is not complicated. Ning Xiaofan only needs to install a detonation tube with gunpowder and water on each micro-bomb equipped with a detonator, and then paste a small piece of sensor sheet. Finally, through the sensor remote control, the water Penetrating into the gunpowder, and finally detonating the detonator, the remote detonation reaction only takes one second!

Very old-fashioned technique, but can produce excellent results.

As for the second unique skill, it is "concussive blasting".

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

The 5-meter-thick rock wall, using conventional methods, may not be able to blow through with 50 kg of explosives, but the destructive power of 50 kg of explosives has a terrifying blast range. If it cannot be blown through, the rock wall may collapse.And the collapse of the rock wall will not only not solve the problem, but it will bury the water area. In the end, it is estimated that Ning Xiaofan and others will be buried alive if they are not crushed to death by the rock.

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

Based on the data of the scanned rock wall, Ning Xiaofan designed a point-to-surface method to calculate the explosion point through the scanned internal structure of the rock wall, and then use the energy generated by the explosion point to achieve the purpose of decomposing the internal structure of the rock wall...