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In the process of national construction, of course, there will be many magnificent buildings, each of which will be built according to the conditions of the region, such as the Sanmenxia Dam, which was completed by a country at a cost of 4 billion yuan.

It is reasonable to say that investing in such a large project is definitely beneficial for the development of the country, but over time, many drawbacks have been discovered. So is the Sanmenxia Dam a feat or a failure?

Construction of Sanmenxia Dam

The reason why the country built the Sanmenxia Dam is mainly due to the Yellow River in China. When the Sanmenxia Dam was not built, it caused great disasters to some people in the surrounding areas,Due to the abundant water in the Yellow River, floods often occur downstream, affecting many people.

In order to change this situation, China began building the Sanmenxia Dam in 1957, which not only cost several billion yuan,It also took a lot of manpower, material resources, and time to complete the project in 1961.

It was only after the completion of the Sanmenxia Dam that the situation in the lower reaches of the Yellow River, which is often plagued by floods, was changed,For people in Henan and Shandong, there is no need to worry about the natural disasters caused by the Yellow River flooding.

During the construction, due to the relatively low level of technology in our country at that time, we specifically invited experts from the Soviet Union. At that time, the relationship between China and the Soviet Union was also very friendly, and with the help of Soviet experts, we quickly began the construction of the Sanmenxia Dam,Mainly to prevent floods and generate electricity.

It can be said that the initial idea was very good, but over time it has become a place that Xi'an residents particularly hate,I think it should have been blown up long ago.

Why do residents of Xi'an hate it?

Construction of Sanmenxia Dam

So over time, it is during the operation of the dam that more serious floods and waterlogging disasters occur due to sediment deposition,There is also the phenomenon of sediment backflow.

After seeing this situation, the relevant departments naturally need to deal with it in a timely manner. During this process, the reservoir has been constructed and renovated many times, which has cost a lot of time, energy, and money.

The reason why the residents of Xi'an particularly hate it is because the construction of the Sanmenxia Hydropower Station has mainly brought some benefits to Henan,Not only can agricultural production be restored to normal order, but water resources can also be utilized for power generation.

Throughout the entire process, there have been many negative impacts in the Xi'an region of Shaanxi, such as when the river sand is increasing,This has led to a decrease in reservoir capacity, as well as phenomena such as river siltation and blockage.

After the establishment of the Sanmenxia Dam, due to the fact that sediment cannot be brought into the ocean normally and remains in the reservoir area, it is more likely to cause floods in the Shaanxi region. In order to cope with this situation, relevant experts have also begun to propose their own methods,Whether it is the construction of flood diversion projects or the regulation of river channels, they are effective, but they cannot fundamentally solve the hidden dangers.

For example, after the Three Risks Dam, why did the region suffer from over 100 floods and significant losses? Therefore, people in Shaanxi particularly hope to blow up the dam.

What is the current situation of the Sanmenxia Dam?

When Shaanxi Province faces the current problem of sediment deposition, of course, it is also very urgent. In order to solve this problem,I hope the central government can help solve it.

When I saw this situation in the central government, I felt that to solve the current problem, we need to first solve the problem of sediment,In order to solve such a problem, the dam bottom was blasted open in the first attempt.

Through this method, the flood discharge capacity of the reservoir can be improved and sediment can be discharged effectively. Due to this method, pipelines will be installed at the bottom of the tunnel, and cement sand will be discharged from the bottom of the tunnel,However, as time goes by, it remains a method of addressing the symptoms rather than the root cause.

Nowadays, the high sediment content in the Yellow River has had a significant impact on the original function of the Sanmenxia Dam, and it is necessary to clean and maintain the Yellow River sediment every year.

In addition to the two holes and four pipes that were blown out in the first round, eight more holes were blown out in the second round,Due to the fact that there were too many holes exploded, the flood crisis faced by Shaanxi has been completely resolved.

But now the Three Gorges Dam has long been lost due to continuous renovation, and the value of its initial construction is even more dilapidated. Whether such a project is a feat or a failure is related to everyone's ideas, although it is not very perfect,But it still has very important significance for China's water conservancy projects.

Conclusion:

Perhaps for people living in other places, they only know that the Sanmenxia Dam is a very important water conservancy project in China and is beneficial to the country and the people. However, due to various reasons, it gradually shows the drawbacks of this project.

Although the residents of Xi'an are not particularly satisfied with this project, for the entire country, they also hope to benefit the people during construction. It's just that at the beginning of the design, we didn't take into account the high sediment content of the Yellow River, which is also a reminder for more experts.

• Author: Win
• Editor: Shan Hai

The original work of "Si You Shi" cannot be reproduced without authorization, and infringement is subject to investigation.

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