埋深对墩式沉箱底面波浪浮托力影响分析

Influence of caisson’s buried depth on wave uplifting force on pier caisson floor

《港口与航道水文规范》(JTS 145-2015)对于有一定埋深情况下的沉箱底面波浪浮托力如何计算未做说明。针对埋深对于墩式沉箱底面波浪浮托力的影响程度,结合实际工程,对规范公式计算结果与物理模型试验结果进行对比分析。结果表明,埋深对于沉箱底面波浪浮托力有一定的折减效应,具体折减程度须结合埋深、土质、沉箱尺寸、波浪参数等综合确定。

Since there is no explanation on the calculation of the wave’s uplifting force on the caisson floor in the case that the caisson has a buried depth in the Code of Hydrology for Harbour and Waterway(JTS 145—2015),this paper carries out a comparative analysis of the influence of the caisson’s buried depth on the wave’s uplifting force between the code calculation and physical model test based on the practical projects.The result shows that the buried depth has reduction function to the wave uplifting force,and the the reduction degree shall be determined in combination with the buried depth,soil quality,caisson size,wave parameters,etc.