埕岛油田人工岛结构与土相互作用的静力模型试验研究

A MODEL EXPERIMENT STUDY OF THE INTERACTION OF THE ARTIFICAL ISLAND STRUCTURE OF CHENGDAO OIL FIELD AND SOIL

在地震、海冰和波浪等海洋环境荷载作用下的人工岛与土相互作用非常复杂，很难用一个合适的数学模型进行描述和计算。据初步估计，静冰荷载是该人工岛结构的设计控制荷载。因此，本试验对人工岛结构在静冰力下结构与土的相互作用进行了研究，得出了人工岛结构筒壁内、外土压力分布。

Under the loads such as earthquake, ice and wave in the offshore enginering, the interaction of the structure of artificial island with soil is very complicated, and it is very difficult to describe and calculate by a suitable mechanical model. Static ice load is taken as design control load based on estimating. Therefore, the interaction of the structure and soil has been studied in this model experiment. The inner or outer soil pressure distribution around the wall of the column of the artificial island and the varying of displacement and stress of the wall and the piles as well as the rules according which each part of the structure share ice load are obtained.