有顶板开孔沉箱上构件所受规则波波浪力的研究  

STUDY OF REGULAR WAVE FORCES ON COMPONENT OF PERFORATED CAISSONS WITH TOP COVER

作　　者：陈雪峰[1] 李玉成[1] 刘勇[1] 姜俊杰 马宝联[3] 鲁桂荣[1] 

机构地区：[1]大连理工大学 [2]中交水运规划设计院,北京100007 [3]天津海事局,天津300456

出　　处：《中国海洋平台》2005年第3期1-10,共10页China offshore Platform

基　　金：本课题由长江学者合创新团队发展计划;交通部规范修订项目联合资助

摘　　要：通过水槽实验研究规则波正向作用下有顶板开孔沉箱各个部分构件(前开孔板、后实体板、底板及顶板)的压力分布。分析了前开孔板静水位、中部以及底脚内外压差的变化规律,给出主要影响因素与压差的拟合关系式;分析了后实体墙静水位、中部以及底脚的压强分布规律并给出简化计算式;分析了底板压差及顶板压强的分布。以总水平力的分布为准,对前板压差、后板压强以及底板压差与总水平力之间的相位差进行考察,得到前板压差、底板压差比总水平力先达到峰值,后板压强比总水平力滞后达到峰值,并分析相位差与主要影响因素的关系。The experimental investigation of regular wave acting on perforated caissons with top cover is presented. Based on the test data, the pressure (or pressure difference) distributions of the different components of perforated caissons are discussed. The correlation relationship of pressure differences between the outer side and the inner side of the front porous plate with their main influencing parameters is analyzed. The correlation equations to calculate the pressure differences of the front porous plate at various positions of the caisson are obtained from the Least Square Method. In the same way, the pressure distributions of the back solid plate at different positions of the caisson are also illustrated. The pressure differences of the bottom plate between the outer side and the inner side are obtained. The total horizontal wave force's time history is regarded as the datum base, the phase shifts between the pressure differences of the front porous plate, the pressure of the back solid plate and the pressure differences of the bottom plate and the total horizontal forces are discussed.

关 键 词：规则波 顶板 开孔沉箱 构件 压力分布 

分 类 号：P753[交通运输工程—港口、海岸及近海工程]