环抱式港池水体交换效果影响因素研究  

Research on the Influential Factors of the Water Exchange Effect for an Encircled Basin

作　　者：韩卫东[1] 张玮[1] 陈祯[1] 刘博雅[1] 曹昊[1] 

机构地区：[1]河海大学港口海岸与近海工程学院,南京210098

出　　处：《科学技术与工程》2015年第9期258-265,共8页Science Technology and Engineering

基　　金：国家高技术研究发展计划(863计划)(2012AA112509);江苏省交通科学研究计划项目(20100714-30HDKY001-2);2011年度江苏省研究生培养创新工程(CXZZ11_0449)资助

摘　　要：环抱式港池的主要问题是水体交换能力较弱,设置水体交换通道是改善港池水质的有效方法。以连云港的两个港区为例,建立潮流和对流扩散模型,研究环抱式港区设置水体交换通道对于水质的改善效果。研究表明:进潮量是提高港区水体交换能力的决定因素;进潮占优的通道对港区水体交换效果的改善优于出潮占优的通道;通道与口门处潮位过程的涨潮潮差是影响进潮量的主要因素。Considering that the main issue of encircled basins is the weak capability for water exchange,setting up water exchange channels is an effective method to improve water quality in harbors.Based on the examples of two harbor districts in Lianyungang,the power-flow model and the convection model are established to research the effects of the improvement of water quality in the encircled basin by setting up the water exchange channels.Research shows that： the determining factor to improve the capability of water exchange is the tidal influx.As for the improvement of water exchange in harbor,the tidal influx dominant channel is superior to the tidal outflow dominant channel,and the main factor influencing tidal influx is the tidal range of tidal level process at the channel and entrance.

关 键 词：环抱式港池 水体交换通道 水体半交换周期 进潮占优通道 潮差 

分 类 号：U653.3[交通运输工程—港口、海岸及近海工程]