Do you know Project 816? During the whole process of construction, it was a "top secret" of our country, and it was not until later that it was made public to the world.
The reason why it is "top secret" is precisely because it has carried out the development of nuclear weapons on the mainland. To this day, Project 816 is also the largest known underground nuclear project in the world.
At that time, China was not the current infrastructure maniac, and all the equipment was very backward, how did it build such a large underground project? How difficult was the construction process?
What is Project 816?
In the mainland, many major projects are named after numbers, and Project 816 is no exception.
Three seemingly ordinary figures, who would have thought that behind them would be hidden 50 years of major national secrets?
Although now, the 816 project has been declassified, but at that time, this project was indeed listed as a top secret military secret, because of the need for secrecy, the location of the 816 project "Bai Tao" has disappeared directly from the map for more than 20 years.
This top-secret project was built at the time to be used as an industrial base for nuclear materials.
The construction environment at that time was also extremely difficult for the soldiers. In order to ensure the progress of the construction, they all implemented three shifts, and each shift had to ensure that the workload was completed within 8 hours.
Not only is the workload heavy, but in the process of operation, soldiers must wear hard hats, dust covers, high rain boots, and then waterproof clothing over their work clothes.
It was already very hot to wear it like this, and then it was necessary to use a machine of more than 50 kilograms to dig holes, and after the completion of a work shift, the soldiers were soaked with sweat.
The harsh working conditions did not deter these soldiers, who quietly buried their heads in hard work with a patriotic heart, using rudimentary tools to dig out nuclear holes.
How difficult is Project 816 to build?
In order to complete this top-secret military project, it is necessary to strictly do a good job of secrecy at the beginning.
First of all, the selection of construction engineers should be very strict. The soldiers who participated in the construction of the project actually did not know why they were digging this hole.
When they first started attending the secrecy class, they only told these characteristic soldiers one sentence, that is, "don't ask what they shouldn't ask, and don't look at what they shouldn't see." Everyone only knows that this is a big project of strict secrecy.
When the soldiers returned home after completing their mission, they brought home a "secret card" in the file bag, which read, "Don't tell your parents, don't tell your wife and children, keep it secret for life." ”
This shows how high the degree of military secrecy of Project 816 is.
At that time, in order to build this nuclear project, more than 20,000 engineers worked hard for more than two years in the early stage, and more than 40,000 officers and soldiers and the masses participated in the project, so that the construction progress of this project could be continuously advanced.
However, everyone did not know that they were building such a great project at that time, and it was only after decryption that they realized that they had participated in the construction of such a great project at that time.
Project 816, which began construction in 1976 and stopped construction in 1984, had completed 85% of the construction work and 60% of the installation work.
Later, in 2002, the Ministry of Defense ordered declassification, which allowed the once incognito 816 project to appear in front of the world.
At that time, the construction of the 816 Project, which was due to the special international situation, also followed the trend of peace and stopped construction.
Through the project open to tourists at the back, it can be seen that the 816 project has hollowed out almost the entire mountain, like an underground version of the Great Wall, standing silently.
The total area of the cave reaches 104,000 square meters, with a total length of more than 20 kilometers, including 18 large tunnels, as well as a number of pilot tunnels, branch tunnels, tunnels, and more than 130 shafts.
It is said that the three holes of the cunning rabbit, at that time, in order to protect the security of the motherland, our country can be said to have made many preparations behind the scenes.
What is the significance of Project 816 today?
What kind of scene is the 816 Project today? According to the information found on the Internet, the 816 Project, hidden in the deep mountains of Fuling, Chongqing, can only see a large chimney reaching into the sky from the outside.
This 150-meter-high chimney is actually just a camouflage of Project 816 on the ground, and in the depths of the ground, Project 816 is buried. This chimney is the vent of the project.
From the outside, there is no trace of large-scale engineering construction at all, but if you continue to walk inside, you will find a 9-story cave hall behind Wuling Mountain, which is about 80 meters high. Around the mountain, there are also 19 openings of various sizes, which are divided into different openings according to different uses.
The depth of the plant in the cave is about 400 meters, and the top layer is the thickest 200 meters. With the intricate interior design, it is difficult for visitors to find the right route on their own if there is no one to guide them.
After entering the cave, visitors will be surprised to find that the lead door at the entrance of the cave is controlled by photoelectricity, as long as the nuclear explosion flashes, then the lead door will automatically close within a second, which can be said to be full of security.
At present, only 3/1 of the 816 project is open to tourists, and the rest is still closed.
In 2017, Project 816 was included in the list of China's 20th century architectural heritage, and in 2019, it was rated as a national 4A-level tourist attraction.
Today's 816 project, as a famous red scenic spot, is not only a training and teaching base for local party members, but also a monument to the soul baptism of the Chinese people.
In the process of its construction, thousands of soldiers did not care about personal gains and losses, dedicated their good youth to it, fully carried forward the spirit of not being afraid of hardship and tiredness, and finally completed the basic construction of the project by relying on firm will and extraordinary perseverance.
The above is the whole process of the construction and shutdown of the mainland 816 project, if you are interested, you can also go to the scenic spot to travel and relive the glorious years at that time.
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