Reinforced concrete has a long life. How to deal with the heavy equipment of the Three Gorges Dam?

This is something that ordinary people should care about. After all, this kind of big project will definitely consider the problem of life from the beginning of construction. How to deal with this kind of thing is not the current consideration. Of course, if it is necessary to consider, it is not impossible. This is not difficult to understand, because other countries have begun to do problematic things. This country is the United States, and many water conservancy projects were built in the last century.

From the middle to the early last century, the United States was an infrastructure madman, and this century we are just an infrastructure madman. In fact, the United States is already doing what we are considering now. Many water conservancy projects were built in the United States, which provided enough electricity for the development of American national strength at that time. This kind of project lasted for decades. By the end of last century and the beginning of this century, the United States began to dismantle a large number of water conservancy projects.

There are several reasons for demolition in the United States. First, because this kind of water conservancy project will have an impact on the ecological environment and lead to the destruction of the biological chain, they have demolished more and more water conservancy facilities. Second, because the United States has other energy sources besides hydropower projects, there is no need to build them again. Those water conservancy projects that have existed for decades and hundreds of years have reached the limit of their service life, and they are not going to use and maintain them, let alone continue to build them, so they are directly demolished.

Of course, our Three Gorges Dam is not only used for water conservancy and power generation, but also for confluence flood control and regulation of the Yangtze River water level. When it was first built, it was designed according to the engineering cycle of 100. It is required to resist the once-in-a-century flood and the direct attack of nuclear bombs. Of course, it is hard to say whether it can withstand a nuclear bomb attack. After all, although there is the possibility of a nuclear war between nuclear powers, the possibility is still very low.

The service life of the Three Gorges Dam is only an estimate, and it is maintained every year. Therefore, in terms of service life, the service life of the Three Gorges Dam should be very long as there are not too many unexpected human errors or natural disasters. It's hard to say how long it will be, but at the end of its service life, if there are potential safety hazards after testing and evaluation, it will definitely be dismantled and cannot be kept forever. I just don't know how to dismantle it and how much work is needed.

How to solve the flood in the Yangtze River after demolition is, of course, a matter of the future. At that time, the level of science and technology was relatively developed, and people of that era naturally had to solve it. The life of the Three Gorges Dam can't be infinite, so it will be tested and evaluated every year, and there will be corresponding countermeasures, but it will definitely start before the huge crisis of the Three Gorges Dam. The final fate of the Three Gorges Dam has been doomed, but it is not the time to consider it yet.

Of course, the year before last, the Internet and foreign media criticized the Three Gorges Dam, which was distorted and distorted in an attempt to create panic. What's more, many brainless people in China followed suit and vowed to be honest with each other, eventually hitting each other in the face. Now that I think about it, I really feel that many people like to follow the trend and don't even think about whether it is true or not. It's disappointing that they believe what others say and then do it.

Don't worry! The Great Wall of Wan Li is short of Qin Shihuang. When it comes to disposal, I don't know how many more magnificent projects will be built than the Three Gorges Dam!

What are you afraid of? By then, the world will have nothing to do with you, because you also have a long life.

It's not our concern. Can it be discussed in the eyes of ordinary people? I really think its life will be a hundred years later, so what can we do to deal with this dam?

How long is the life of the Three Gorges Dam? There are several sayings about 100, 300, 500 years, and even American media alarmist that the service life of the Three Gorges Dam is only 50 years, because the reinforced concrete technology in China is not good.

This is a joke. As an infrastructure enthusiast, how can we let the Three Gorges Dam, the country's heavyweight, make such a low-level mistake?

Up to now, many foreign dams have been in operation for hundreds of years, such as the Aswan Dam on the Nile, and the boardman Dam in the United States was built in 1894, that is, 126 years ago. However, the construction technology and building materials used in our Three Gorges Dam are much higher than theirs. It is reported that the design life of the Three Gorges Dam is 300 years and it can be used for more than 500 years.

After the service life of the dam is reached, it will usually be demolished or rebuilt nearby, such as Fengman Hydropower Station in Jilin.

Jilin Fengman Hydropower Station is located on the Songhua River, which was built after the Japanese invaded the Northeast. /kloc-0 started construction in April, 1937, and/kloc-0 was defeated and retreated in 1945, when the project was completed by 89%. After the establishment of People's Republic of China (PRC), it was completed in 195 1. An unforgettable history is that when the Japanese invaders built Fengman Hydropower Station, they plundered tens of thousands of laborers. According to statistics, at least 6,500 workers were killed, died of illness, exhausted, starved to death, frozen to death, died of accidents and died of repression.

Old dam of Fengman Hydropower Station

Fengman Hydropower Station 1988 was damaged when it was put into production. After renovation and reinforcement, 20 18 continues to be used, with a service life of over 70 years (note: 1945 some units began to generate electricity). With the materials and technology still used for so long, how can our Three Gorges Dam be as 50 years as Americans say?

1October 29th, 20 12, 10, at the downstream of Fengman Hydropower Station120m, the dam of Xinfengman Hydropower Station started construction. In the history of international hydropower, it is the first time to rebuild a large hydropower station with a capacity of10 billion, an installed capacity of one million and a dam height of nearly 100 meters.

The new dam of Fengman Hydropower Station

On May 20th, 20 18, the new dam of Fengman Hydropower Station was officially put into use, and the old dam of Fengman Hydropower Station was demolished by blasting on February 2nd, 20 18.

Therefore, according to the experience of Fengman Hydropower Station, there is a high probability that the Three Gorges Dam will be rebuilt after its service life, but it will be hundreds of years later, and we can't see it, so we can only give it to future generations.

This question is not difficult. The experts thought about it for a long time. As a layman, they can know that it is not enough to just blow up the water in the reservoir and transport the muck away. You can even consider cleaning and re-pouring the dam on the original basis. There are no disastrous consequences and effects. It is certain that the Three Gorges Dam will benefit mankind. Some people always talk about the dam, and it is difficult to understand its intention.

Engineering buildings like the Three Gorges Dam have a history of at least 200 years. By then, high technology may be very desirable. So don't worry.

It won't be long before the fixed number of years. By then, people will be smarter. If another one is built next to the bottom or upstream, will the living people suffocate their urine?

After the expiration of the service life of the Three Gorges Dam, the following measures should be taken to prevent the Yangtze River flood:

In fact, under normal circumstances, the service life of the dam is about 50 years, so when the service life is up, there will be problems in the stability and safety of the Three Gorges Dam, and cracks may appear in many places. Therefore, after reaching the service life, it is necessary to conduct a comprehensive inspection of the Three Gorges Dam and then repair all cracks.

This process is the same as the restoration of ancient buildings. Although the amount of work is a bit large, it is much easier than rebuilding a Three Gorges Dam. After all, the Three Gorges Dam is very expensive, and it will definitely not be displayed if it is completely demolished and rebuilt. It is the most economical and time-saving to repair the Three Gorges Dam as much as possible on the existing basis.

After the Three Gorges Dam reaches its service life, its stability will decrease. If it is not reinforced, the Three Gorges Dam will not only be unable to resist floods, but will also be washed away. Once the Three Gorges Dam is washed away, it will endanger the lives of tens of thousands of people. Therefore, after the Three Gorges Dam completes its mission, it needs to be comprehensively reinforced, which requires a lot of manpower and material resources.

So if the Three Gorges Dam needs to be repaired after its service life, and it will be completely abandoned only if it can't be repaired, then build a new dam to resist floods.

We all know that Dujiangyan, a great project of human society, has lasted for more than two thousand years, but it is still playing its design function, and millions of people still visit it every day. For more than 2,000 years, people have maintained this project countless times, which not only ensured its original design intention, but also extended its practical function.

At present, the method of prolonging the life of large-scale projects is a problem that need not be worried.