环抱式港池水体交换与改善措施研究  

Water exchange and improvement measures for encircled basin

作　　者：张玮[1] 王国超[1] 刘燃[1] 陈祯[1] 唐磊[1] 

机构地区：[1]河海大学港口海岸与近海工程学院,江苏南京210098

出　　处：《水运工程》2013年第4期37-41,共5页Port & Waterway 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)

摘　　要：环抱式港池既有防浪挡沙的优势,也有港区内外水体交换不畅的不足。以规划中的连云港港徐圩港区为例,利用对流扩散模型,模拟计算潮流作用下环抱式港池水体半交换周期,研究探讨改善港池水质的工程措施及其效果。研究结果表明:水动力条件是影响港池水体半交换周期的主要因素,包括作用的潮型和港池位置;工程措施的效果取决于其对水动力条件的改善程度和水体交换量的大小。The encircled basin can break waves and reduce sands, but it is disadvantageous for the water exchange flux for the harbor. Based on the project of Xuwei harbor in Lianyungang, the semi-exchange period of the water body is simulated and calculated with a convection-diffusion model under the wave-current interaction. The improving measures and their effect for the water quality are also investigated. Results indicate that the hydrodynamic condition is the key factor influencing the semi-exchange period of the water body, including the effect of tidal type and the position of harbor basin. The effect of measures depends on the improvement degree of the hydrodynamic condition in the encircled harbor and the size of the water exchange capacity.

关 键 词：环抱式港池 港池水质 半交换周期 对流扩散模型 工程措施 

分 类 号：U653.33[交通运输工程—港口、海岸及近海工程]