South Madur in Micronesia and crannoge, the lake home of Celtic in Scotland, are considered as artificial floating islands built by early humans. The earliest existing artificial floating island is located in Lake Titicaca on the plateau bordering Bolivia and Peru. Houses, schools and even radio stations have been built on the floating reed island in Lake Titicaca. The residents here-Urus people still continue the ancient artificial island construction technology that their ancestors have been using for hundreds of years. They tied tall cattail reeds (the stems of this huge cattail) into bundles, and the bundled reeds formed a floating artificial island. With the decay of old reeds and the increase of new reeds, the shape of the island will also change.
The active period of research and development of artificial floating islands in Japan was after 1995 Hanshin earthquake. If an artificial floating island is used, it has nothing to do with soft foundation or water depth, and a disaster prevention base with high earthquake resistance can be built on the sea surface. This is also one of the main backgrounds of artificial floating island research and development.
At present, there are three small artificial floating islands originally used for experiments at Haneda Maritime Airport, which are located in the marine fishing garden in Qingshuiwan, Shizuoka City, the "Swirl Artificial Floating Island Marine Fishing Garden" in Nandan Road, Hyogo Prefecture and the "Kumano Beach Marine Park" in Nanishimachi, Mie Prefecture. The world's first truly largest artificial floating island was unveiled in Seoul, Korea on February 6, 20 10.
The three floating islands in Seoul, together with the water stage and Panpu Bridge, gave birth to a new riverside landscape. Humanity space, which integrates water activities, exhibitions and performances, has a total area of nearly 20,000 square meters. It is not only the largest floating island in the world, but also the only water conference center in the world.
This artificial floating island made of steel, named Viva, weighs 2500 tons and covers an area of 327 1 square meter, which is as big as a football field. It is one of three floating islands built at a cost of 96.4 billion won, which can accommodate 2,000 to 2,500 tourists. Viva was built in 1 year and floated by 24 special rubber airbags with a bottom diameter of 2 meters. In the future, the facilities on the island will be assembled in the river. In order to prevent the floating island from drifting away, a 500-ton stone pier was laid at the bottom of the river, and several chains with the longest length of 69 meters were tied. Once the flood level reaches 1 6m, or the satellite positioning device finds that the floating island has left its original position by more than1m, the chain will automatically lock and pull the floating island back to its original position.