Are the lands of Yongshu Island, Zhubi Island and Meiji Island permanent? Why do you want to reclaim land from the sea?

First of all, reclamation in Nansha is not equal to land reclamation, which is not difficult to understand. The Netherlands is the country with the largest land reclamation area in the world at present, which is why it is said that "God made the sea and the Netherlands made the land". Reclamation is to turn the original sea area into land by some means. This phenomenon is relatively common in coastal cities, including Japan, which has long had a reclamation plan, but China's Nansha reclamation is different!

How is the reclamation in Nansha achieved? Is the "land reclamation area" permanent?

Since the reclamation in Nansha is mentioned, of course, we have to mention the cutter-suction dredger Tianjing, whose construction period takes as long as 21 months. It is a huge dredger, and its dredging capacity and installed power rank third in the world and first in Asia. One of the most outstanding engineering ships in Nansha's reclamation process is the Celestial Whale, which worked between five reefs in 174 days, and its volume of reclaimed seawater and sand was more than 1 million cubic meters.

Nansha dredged fill is different from the traditional sand excavation and transportation. It is not to transport sand from other places to the destination by means of transportation. The farthest distance of sand reclamation is generally more than ten miles, and most of them do not use pipelines when the distance is close. To put it simply, blowing sand into the sea means blowing sand water from the seabed to the islands and reefs that need to be blown up. The islands and reefs that were originally hidden under the sea will be exposed because of the continuous accumulation of sand, and the water carried in the sand will return to the sea.

The reclamation of Nansha Islands started in 213. The islands and reefs we dredged are only a part of Nansha Islands, such as mischief reef, Zhubi Reef and Yongshu Reef, which are well known by many people. It can be said with certainty that the land area of these small islands filled by natural simulation is permanent. Up to now, the land area of Yongshu Island is 2.8 square kilometers, that of Zhubi Island is 4.3 square kilometers, and that of Meiji Island is as much as 5.6 square kilometers.

how are those islands and reefs that were dredged and filled in Nansha being built now?

In ancient times, Nansha Islands used to be called Wan Li Long Beach, which is located at the southernmost tip of the South China Sea. There are many beaches, reefs and islands here. Because there are a lot of mineral resources, especially oil and gas resources, it is called the second Persian Gulf by many people. Needless to say, everyone should understand why some reefs should be blown into islands, such as improving the garrison conditions and safeguarding rights on islands and reefs, but at the same time it is also to undertake the international public welfare mission of big countries and better serve the people.

Yongshu Island, located on the southwest reef plate of Yongshu Reef, a large atoll, has established a special ocean observation station for a long time, which has helped ships from many countries sail safely. At present, there are not only special airports, but also hospitals and sports fields on Yongshu Island.

The next island, Subi Island, is located on an isolated large atoll, which is especially suitable for the construction of such a large fishing base. In the late 199s, there was a radar station on it, and the airport construction was completed several years ago. Now, many coconut trees have been planted on this island reef in Shanghai, as well as Subi Island, Subi Farm and track field. The opening of Subi Lighthouse has improved the surrounding search and rescue and navigation management capabilities.

In addition, we can see from the satellite photos of Meiji Island that there are many buildings on it. As early as 218, the mischief reef officially opened the Island Reef Research Center of Chinese Academy of Sciences. In seven days in 215, mischief reef also started the airport construction work, and completed the verification flight in 216. So far, airports that have been put into use have been established on all three islands and reefs. In the beautiful red Meiji Lighthouse, the island's green area is getting bigger and bigger, and the distinctive slogan on the dock "Take the great responsibility of the nation and die to cast a sea god needle" has inspired countless people in China.

blowing sand and filling the sea is a technical activity, not a physical activity!

as mentioned earlier, land reclamation is mainly concentrated in some cities in coastal areas, especially those areas with limited urban space, such as Tianjin, Dalian and Shenzhen in China, which have gained more flat land through land reclamation.

Aside from the ancient society, our land reclamation should have started in the 195s and 196s. For example, Xinghai Square in Dalian was built by land reclamation. However, since large-scale land reclamation will have a bad impact on the ecological environment, China has controlled the annual reclamation scale in 22.

In the past many years, Japan and the Netherlands have been outstanding in the field of land reclamation technology, but the level of land reclamation in China is also scientific and efficient at present. There are many aspects involved in the process of dredger fill, such as how to improve the bearing capacity of dredger fill and how to reduce the moisture in dredger fill. The dredger fill land should not only become land in the fastest time, but also make the structure of these soil bodies sufficiently consolidated.

Moreover, the advanced hydraulic fill technology can also minimize the impact of this process on the surrounding ecological environment, not just meet the immediate needs.