Marine Port construction was coordinated by Yonemori Construction
Purpose of the artificial island
- A terminal for large cruise ships
- A place to store debris generated by disasters
- A heliport for transporting emergency patients
- A place to collect sediment from Mt. Sakurajima
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-18.png)
▸Total project cost
26.7 billion yen
▸ Landfill area
24.0ha
■ Construction zone 1: 10.3ha ■ Construction zone 2: 13.7ha
▸ Amount of buried soil
■Sakurajima soil and rock flow soil 2 million m³
■Public residual soil, etc. 2.5 million m³
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-17.png)
Quay Construction
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-2.png)
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-3.jpg)
▸Quay construction method
Caisson type Quay
▶What is a caisson?
It means “big box” in French. The caisson is made of reinforced concrete.
It is used to prevent waves and as a quay to stop ships.
▶Caisson Construction
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-9.png)
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-10.png)
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-11.png)
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/LINE_ALBUM_20210927_210928_1.jpg)
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-14.png)
![](https://goesgakusei.eng.kagoshima-u.ac.jp/wp-content/uploads/2021/09/image-15.png)