Chapter 170 Destroy the Plan (Happy New Year’s Eve)
Swaraj asked subconsciously.
Marlow glanced at Gu Ji and turned his eyes thoughtfully, only then did he confirm that his previous feeling was correct.
"Comradeship" is very applicable to any country in the world. When he heard that Gu Ji had also served in the Army's Mountain Division, Swaraj's attitude changed obviously and he agreed to his application to go together.
About twenty minutes later, at Fatima's phone request, the magistrate of Darjeeling County rushed over with more than a dozen transport vehicles and engineering teams and began to help the soldiers of the Special Border Force carry military TNT explosives.
"Vidi, be careful!"
"Do not worry."
Faced with Fatima's concern, Gu Ji shook his shoulders, tied his backpack tightly, and then got into the transport truck.
The 18 people sent by the 57th Mountain Division, excluding Swaraj and his deputy, were exactly 16 people. They were divided into two teams, A and B. Through chat and inquiry, we learned that their mission was not only to provide military explosives transportation and command detonation, but also to Responsible for armed protection, as for the process of filling explosives, it requires the assistance of the state government engineering team.
Come to the dam.
The first thing that came to my ears was the loud "crash" sound, which was the sound produced when the dam gate hole released water. Alipur Dam is a medium-sized dam, with a width of 500 to 600 meters and a height of more than 70 meters. It is also spectacular. The long dam body crosses the water of the Mohanenda River rolling north. There are iron towers standing abruptly on the dam body, and the power grid extends in all directions.
Alipur Dam is the first important dam in northern West Bengal.
Gu Ji chose to blow it up, or rather, the common reason for blowing up the three dams was the size and the importance of its location!
First of all, the Alipur Dam is large enough, with a water storage capacity of 3.62 billion cubic meters, and its location is even more important. It is at the largest drop in the river. Because of the huge drop of about 50 meters between the upstream and downstream, it has a capacity of 565,000 cubic meters. A kilowatt generator set can provide sufficient power to the surrounding area.
When Gu Ji wanted to blow it up, officials and experts from the finance and taxation and water conservancy departments strongly opposed it.
But the real danger lies here. There are only four gate holes, and the drainage speed is very limited. Once the amount of water in the upstream increases sharply, causing the dam to burst, and billions of cubic meters of water will fall down at the same time, it will definitely happen without even thinking about it. This caused the continuous failure of medium and small dams downstream, resulting in a super flood that has never been seen in a century.
Arrive at the dam central control room.
Gu Ji and Maro took the documents to hand over to the staff, and took a look at the monitoring data. Sure enough, the water storage position of the dam was already at the edge of the warning line, and the little water discharged from the gate holes could not survive the tropical storm. Drain the reservoir to a safe location before coming.
After comparing the structural drawings of the dam on site and confirming that the original drawings provided by the Presidential Palace were correct, he asked the dam supervisor to direct the evacuation of people, and then began to implement the first bombing plan with soldiers from the Special Border Force.
All hydropower stations in the world have two shapes, one is a gravity dam and the other is a stress dam.
Gravity dams are easy to understand. They are dams that rely on their own weight to block the surging river water. They are very strong. Stress dams are a bit more complicated. They use their own structure to transmit the strong pressure brought by the river water to the cliffs on both sides, thereby utilizing The stress resists huge water pressure, and the same is true for the Gauhati Dam that Gu Ji saw in Assam before.
Compared with gravity dams, stress dams save labor, materials and time, and only require about one-third of the concrete. However, this type of dam has a disadvantage. If you destroy one of the points, the strong water pressure will It will cause the dam body to collapse and cause a catastrophe.
Gu Ji wanted to take advantage of this shortcoming.
The "Operation Punishment" mission carried out by the British Air Force in 1943, that is, the bombing of the Ruhr Dam, also took advantage of this structural shortcoming. It only used three 4.5-ton bombs to destroy the Ruhr, which required at least 40 tons of explosives to blow up. dam.
Fortunately, most of the dams in India are stress dams.
Otherwise, if you encounter a concrete gravity dam like the Xiaguo Three Gorges, you basically don’t have to think about it. Conventional weapons can’t even leave a hole when they hit it. This kind of super-large infrastructure is designed to carry millions of tons. Nuclear weapons go.
Fortunately, Gu Ji's purpose is not to completely destroy the dam. He only needs to find a way to blow up a gap. This will not only speed up the drainage of the reservoir, avoid large-scale floods when tropical storms hit, but also allow for the minimum cost afterwards. repair.
After reading his action plan, Marlow first asked the technical soldiers to use the Indian SWITCH drone to fly around the dam to confirm the general working environment of the dam, and then arranged for the engineering team to carry out explosive transportation, hoisting, and construction. hole.
"Your plan is well designed. It only requires 187 kilograms of TNT explosives to complete the task. It's very easy!"
"Since it is your military, the technology must be much better than that of ordinary engineering teams, so I used the more difficult multi-row differential blasting method."
Facing Marlow's question, Gu Ji answered casually.
When he heard the professional term "multi-row hole differential blasting", Marlow knew that he really understood blasting technology.
Microblasting is an advanced method of simple shallow and deep hole blasting. It mainly refers to a complex blasting method in which Chinese medicine packages in adjacent blastholes are detonated in a very short time, usually calculated in milliseconds, in a pre-designed order.
It has many advantages. First of all, it requires less preparation work, can complete the blasting work of a large amount of rocks in a short time, and is suitable for rocks of various hardnesses, especially in locations with complex terrain such as dams, which are not subject to construction. Conditions are limited, and it does not require special rock drilling equipment. Generally, a rock drill can be used to excavate the cave. All those used in deep hole blasting can be used in cave blasting.
The most important thing is: the blast volume is large at one time, reducing the number of blasts and the time to avoid the blast!
In other words, once the loading is completed, the blast can be successful in one go, which greatly saves mission operation time.
The more savings you can make, the more time the reservoir will have to release floods, and the safer the people will be!
Gu Ji relied on his experience in construction blasting honed in the bomb level to design a very simple but practical "U"-shaped multi-row blasting for the Alipur Dam.
The entire process of drilling and loading explosives takes about three to four hours.
This is still with the help of the construction engineering team of the Bang County Government. If Gu Ji and the special border troops were to do it on their own, I am afraid that they would not be able to blow up a dam in a year and a month.
After all, this is a super building hundreds of meters long and more than 70 meters wide, capable of blocking billions of cubic meters of water flow.
In order to gain mission experience, Gu Ji also took the initiative to join in the work of loading explosives.
When encountering some difficult hole positions, it is necessary to use safety ropes to lift from high altitudes. Some engineering and technical personnel cannot do it, so they can only leave it to the soldiers of the special border force.
Load-bearing work at plateaus is not a problem at all for these army elites, not to mention that they have been training in the high-altitude areas of the Himalayas in northern Assam for a long time, and their physical condition has already adapted to high-intensity hypoxic operations.
The basic physical fitness of the "Vidi" possessed by Gu Ji this time is quite good, without any weakening of attributes. In addition, he previously chose the blue level endurance improvement mark. Relatively speaking, a high endurance physique is less likely to cause Altitude sickness.
finally.
After more than three long hours, the explosives were all accurately loaded into the holes designed by Gu Ji.
"All personnel are ready to evacuate! Evacuate immediately!"
"Listen to the order! Evacuate quickly!"
…
As Ma Luo and Gu Ji shouted loudly, the county government engineering team packed up their equipment and drove away from the dam. The two checked the dam one last time and made sure no one was missing before returning to the car.
While driving down the mountain.
Gu Ji took out his phone.
"Fatima, how are you over there? Have the people downstream of the dam safely evacuated from the danger zone?"
"All transfers have been completed, don't worry."
"Captain Marlowe, you can blast at any time here!"
After receiving the confirmation, Marlow urged the soldiers to increase the accelerator and drive towards a hill to the east of the town. After confirming that they had reached a safe distance, he raised the walkie-talkie and said, "Krell, the position is safe, you can prepare to blast!"
"Krell received it, now prepare to explode, three, two, one! Detonate!"
After the last words fell, his fingers hit the button.
Boom! Boom! Boom——!
In the dark night sky, several firelights flashed in the distance. The next moment, deafening explosions sounded in succession at an extremely fast speed. They could be heard very clearly even one kilometer away. Gu Ji was still immersed in the military TNT explosive. Although the explosion was powerful, the dam made an earth-shaking noise during his carefully designed explosion.
In an instant.
Earth crumbled and rocks were shattered, and smoke and dust filled the air.
After the violent shaking, a dam burst and a landslide occurred. A large number of boulders fell from the dam body into the river below. In the blink of an eye, the rushing water from the reservoir rushed down from the broken gap, roaring like A group of frightened wild horses rushed from the upper reaches of the reservoir and were unstoppable.
In less than a few seconds, the water level of the Mohanenda River began to surge, and the water flow became rampant, gushing from top to bottom. The river banks could not withstand the sudden and violent impact, and the water instantly submerged both banks. , pressing towards the town step by step.
Seeing this scene, Marlow once again directed the technical soldiers to fly the drone to the top of the dam.
Judging from the screen, a "U"-shaped gap of more than ten meters in size has been blown out in the center of the dam. The floods of the reservoir are pouring crazily from the gap, and because it is a stress dam, under the premise that the bearing points of the dam body are damaged, the As the water continues to wash away, the concrete around the cracks will continue to break and fall, causing the gap to become larger and larger, in order to achieve the ultimate goal of draining the reservoir below the safety line.
"Colonel Swaraj, the first dam blasting plan mission was successfully executed!"
Just as Marlow was reporting the situation on the scene to the commander, Gu Ji took out his binoculars and looked down at the bottom of the hillside. The water was rising at a rate of more than 10 centimeters per minute, baring its teeth and claws like a hungry wolf, devouring the surrounding villages and villages. The land, especially the lower reaches, is like a vast ocean.
This is why he asked Fatima to notify the county government in advance to transfer people.
Blowing up the dam will definitely cause flooding problems, but compared to real floods, the degree of harm is already very mild, and as the reservoir is drained, the short-term rising water will slowly recede.
After the mission was completed, Gu Ji returned to the headquarters with the troops.
Due to water accumulation, the helicopter also changed its position.
Gu Ji found Fatima and learned that the logistics work would be managed by personnel from the central government's finance and taxation department. Only then did he find Swaraj and start bombing the next dam as soon as possible.
Eleven o'clock at night.
The transport helicopter landed near the second dam.
This is Murshidabad district in Murda district, located in the central district of northern West Bengal. It is also the second key location prone to large-scale embankment breach floods.
Just like the previous dam blasting, under the communication arrangements of the central government, everyone continued to move people, drill holes, charge explosives, and detonate according to the previous methods.
However, since this dam is larger than Alipur Dam, it will take longer.
During the loading process, tropical storms gradually invaded here. Gu Ji could clearly feel the temperature and air pressure drop, and his breathing became a little stuffy. Not long after, it started to rain lightly.
Fortunately, military explosives are not afraid of this little rain.
But Gu Ji had been worried about the dam in southern West Bengal, so at his urging, more than four hours later, a fire broke out in the darkness again, and a series of loud noises broke out. The second dam The bombing was successful.
Looking at the rapidly pouring reservoir, Gu Ji asked Swaraj to take off as soon as possible while the rain was light.
The distance from the north-central part of West Bengal to the south is not short, about 100 kilometers. Almost 20 minutes later, through the iron sheet of the cabin, Gu Ji heard the rain getting heavier and heavier around him.
Suddenly, a flash of lightning flashed across the night sky ahead.
"Dududu..."
An alarm sounded in the helicopter cab, and the pilot immediately took out his walkie-talkie and shouted:
"Colonel Swaraj, there is a thunderstorm ahead and it is very dangerous. We can't fly any further!"
"Land nearby!"
Helpless, Swaraj could only order the transport helicopter to land in the nearest open area of the plain.
Fortunately, this place is not far from East Midnapur County in Midnapur Prefecture, and the third dam that Gu Ji wants to blow up is the Farakka Dam that the Minister of Water Resources had strongly refuted before.
This dam is also the largest of the three dams, with a length of more than 800 meters and a height of more than 80 meters. Like the first dam, it also relies on a mountain stream.
After the transport helicopter lands.
Fatima immediately contacted the county magistrate of Midnapur District according to the list.
But what she never expected was that no one answered the phone. She thought it was due to the heavy rain and the county government was in a hurry, so she called several times in succession, but still no one answered.
"Vidhi, no one is answering the phone in Midnapur area."
"Try someone else."
"The phone cannot be connected."
Fatima called another person, but the result was still the same.