How did China build an island from the sea in Nansha Islands? Is it difficult?

How does Nansha Islands in China build islands from the sea? You may not believe it.

I firmly believe that everyone knows that the ocean is deep. So, how do we build islands from the sea in Nansha Islands, China?

First of all, everyone must understand reclamation. In people's impression, reclamation is to transport raw materials such as sand, gravel and soil to the bay by vehicles, and then ask people to move fine sand into the sea to gradually fill the sea surface.

Although the ocean is not thick, there are probably undercurrents and mountains in some areas, which will further dilute the deep layer of the deep sea, but it is not easy to carry out an island-building project. Therefore, in order to make the land reclamation project more and more simple and feasible, people thought of the method of blowing sand to fill the sea.

Later, let's take a look at how blowing sand and filling the sea created this island. To put it bluntly, it means blowing sand to fill the sea, and to put it bluntly, it means piling gravel in the area to be reclaimed by blowing sand, and then building land. This way is a better way to reclaim land from the sea in China at present. Blowing sand to fill the sea does not need to consume a lot of manpower to transport fine sand. If we can use the surrounding resources, we can also save money on transporting vehicles.

Sand blowing and sea filling is a project. Before doing this project, we will make a careful calculation according to the specific local conditions, and then proceed step by step. In the case of sand blowing and reclamation, we should fully consider the scale of land resources for foundation pit excavation and the scale of land to be reclaimed. Generally speaking, the site of foundation pit excavation exceeds the land area to be built.

Moreover, building an island is not a simple matter. In addition to considering the total area, we should also consider the land resources for island building. Taking island building as an example, the soil layer in different areas of an island is different, which directly affects the firmness of artificial island building to a certain extent. Secondly, let's learn about the topography of Nansha Islands.

Nansha Islands, located in the southern part of the South China Sea, is a group of islands with many reefs and widely distributed, belonging to coral landform. Nansha Islands is located in a protruding area of continental shelf. In other words, compared with other places, the Nansha Islands are relatively shallow and easier to build land, which is the primary reason why people choose to reclaim land here.

At the same time, due to the characteristics of the island, there are many beaches around the Nansha Islands, where there is a lot of sea sand. It is necessary for everyone to blow sand to fill the sea, so this kind of sea sand also gives the best resources for reclamation.

Finally, what we need to know is that the crane ship that must be used to blow sand to fill the island is very important. In fact, generally speaking, there is a crane ship called Heigeer in China today, which is also a production technology that many countries can't understand.