吸力锚基础锚泊线准静力分析模型  

Quasi-static analysis model of suction caisson mooring line

作　　者：国振[1] 王立忠[1] 

机构地区：[1]浙江大学建筑工程学院,浙江杭州310027

出　　处：《海洋工程》2009年第4期1-9,共9页The Ocean Engineering

基　　金：国家自然科学基金资助项目(50779061)

摘　　要：随着海洋工程中吸力锚基础尺寸的增大,在系泊系统设计时必须考虑锚泊线切入土体段对整体设计的影响。建立了一种新的基于坐标轴划分微段的准静力分析模型,该模型包括锚泊线切入土体段与水中悬浮段两部分,无需给定锚泊线的初始长度。计算预张状态和工作条件下的锚泊线构形与张力分布,得到锚泊线顶端张力与浮体水平偏移特性曲线,分别对不同预张力和布置沉子对锚泊线状态的影响进行研究,并分析考虑锚泊线切入土体段的必要性。With the increasing of size of suction caisson applied in the ocean engineering, the influence of mooring line embedded in soil on the whole design must be considered when the mooring system is designed. Based on dividing segments along the axes, a new quasi-static analysis model is presented. The model includes two segments, mooring line embedded in soil and suspended in water. There is no need of prevision of the initial length of mooring line in the model. The profile and tension distribution of mooring line is computed during pretension and under working. Curve of top point tension in mooring hne to horizontal offset of floating body is presented. Effects of different pretension loads and sinker on mooring line status are studied, as well as the need of consideration of mooring line embedded in soil.

关 键 词：吸力锚 锚泊线 准静力分析 锚链张力 水平偏移 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]