Caisson has many advantages than the traditional platforms in resisting ice loads during offshore activities, but it will still face crisis when it is piled with ice severely.

• 在海洋冰区中,沉箱(人工岛)在抗冰方面比传统的桩基式平台具有很大的优越性,但沉箱设置引起的海冰爬升和堆积也威胁它的有效利用。