波浪荷载作用下单桶多隔舱结构稳定性数值分析

Numerical analysis on stability of multi-compartment single-bucket structure during wave loading

轻型薄壁的单桶多隔舱结构能够较好地适用于淤泥质海岸软土地基以及砂石料缺乏的地区。以连云港徐圩港区的单桶多隔舱基础防波堤为背景,通过有限元数值分析对波浪荷载作用下的结构稳定性问题进行了研究,结果表明在最大设计波浪荷载作用下土体最大剪应力只发生在下桶底部与土体基础附近的局部位置,港侧桶体底部内趾到外趾处出现一个近似球面形发散的总应变区域。

The light and thin-walled single-bucket structure with multiple compartments, can well apply to muddy coastal soft soil foundation and aggregate deficient area. Taking the multi-compartment single-bucket structure breakwater of Xuwei Port in Lianyungang as the background, we studied the structure stability during wave loading through methods of finite element analysis. The results show that the maximum soil shear stress under the largest designed wave loading occurs only in the local position which is at the bottom of the barrel or near the base of soil. The total strain area which looks like the sphere appears at the position of inner toe to outer toe of the bottom of barrel to the port side.