摘要
在强潮流海区的工程设计中,要根据工程处的潮流特征合理地确定潮流、潮位及波浪的组合;简单地按《港口工程荷载规范》(JTJ 215—1998)有关条文确定作用于桩基上的水流合力作用点,则显得过于安全。文章提出一种新方法,能合理地计算作用于桩基上的水流力与力矩,该方法计算成果与现场测试结果基本一致,平均误差为3.16%;通过东海大桥桥墩潮流、波浪物理模型实验成果分析,认为计算作用于高桩墩台(特别是圆形的)下群桩上的波流力时,群桩系数一般情况可取0.65。
It is necessary to rationally determine the combination of tide, tidal level and wave according to the characteristics of the tide on the construction site during design of the projects located in the sea area with strong tide. To simply determine the application point of join forces of current upon pile foundation as per rele- vant clauses in ＂Code for Loads of Port Engineering＂ （JTJ 215--1998） seems to be excessively safe. It is suggested to rationally calculate current force and moment applied on pile foundation as per the procedures given in this paper, with mean error of 3.16%. According to the analysis of the results of physical model test of the tide and wave applied on the piers of Donghai Bridge, the cluster pile coefficient may usually be taken as 0.65 when calculating the wave current forces applied on the cluster piles beneath the high-pile piers （especially round ones）.
出处
《水运工程》
北大核心
2008年第10期41-45,共5页
Port & Waterway Engineering
关键词
潮位
潮流
波浪
合理组合
水流合力作用点
群桩系数
tidal level
tide
wave
rational combination
application point of join forces of current
cluster pile coefficient
