青岛胶州湾大桥建设对周边海域水动力环境影响的数值研究  

Numerical Study on the Effect of the Jiaozhou Bay Bridge Construction on the Hydrodynamic Conditions in the Surrounding Sea Area

作　　者：张莞君 迟万清[1] 胡泽建[1] 刘建强[1] 张永强[1] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《海岸工程》2015年第2期40-50,共11页Coastal Engineering

摘　　要：应用MIKE21建立胶州湾平面二维潮流模型,对青岛胶州湾大桥建设前后胶州湾内的潮流场进行数值模拟,探讨了青岛胶州湾大桥建设对周边海域的潮位、潮流、潮通量等水动力环境的影响。通过胶州湾大桥两侧的连续实测海流、潮位资料与模拟结果进行比较,可以看出两者趋势基本符合,说明该模型能够较精确地反映胶州湾大桥建设前后的潮流场分布情况。计算结果表明,大桥的建设具有一定的阻流作用并减小了过水断面,从而对周边海域的水动力环境产生一定的影响,但对胶州湾整体潮流场改变较小,影响范围限于桥位南北1.5km范围内。A two dimensional tide current model is established by using MIKE21 and used for the numerical simulation of tidal current field in the Jiaozhou Bay before and after the construction of the Jiaozhou Bay Bridge.Based on these,the effects of the construction of the bridge on the hydrodynamic conditions such as the water level,the tidal current velocity and the tidal flux in the sea area surrounding the bridge are discussed.A comparison has been made between the data measured continuously for tidal current and tidal level in the areas at the two sides of the bridge and the results from the simulation and shows a similar trend between the two results,indicating that the model can reflect accurately the distributions of tidal current field before and after the construction of the bridge.The results from the calculation indicate that the construction of the bridge has,to a certain extent,a choke effect and has reduced the area of the flow section in the sea area around the bridge,thus influencing,to some extent,the hydrodynamic environment in the sea area surrounding the bridge.But the overall current field in the Jiaozhou Bay has been changed little,and the influenced scope is limited within 1.5km to the north and south of the bridge site.

关 键 词：胶州湾 大桥 水动力 数值模拟 

分 类 号：P731.2[天文地球—海洋科学]