摘要
基于辽东湾西北部2016年7月至2017年6月1 a的风和波浪观测数据,分析风浪特征,统计分析风和浪的年和季节变化规律,对波高与周期的分布特征进行分析,分析了大风浪时风速与波浪的相关性。受地形影响主要浪向是偏S向,强浪向为偏SE向,秋季和冬季偏E向的波浪所占频率有所增大。年常风向为SW向,强风向为SW向,春夏季节的常风向为SSW向,秋冬季节的常风向为NNW向,秋季风速大于10 m/s的频率最多。在大浪发生期间,波高和风速有较高的相关性。对辽东湾西北部的绥中港区来说,主要受SE-S-SW向波浪的影响,而这几个方向的波浪频率超过了60%,致使现场围堰破坏和港内泊稳条件较差,因此工程上宜采取延长已有的外海堤、修建临时堤和对波能集中处采用局部开孔沉箱布置等措施来有效改善泊稳条件,减少损失作业天数,提高泊稳条件。
Based on the wind and wave observation data from July 2016 to June 2017 in northwest Liaodong Bay,the annual and seasonal variation of wind and wave were statistically analyzed,the distribution characteristics of wave height and period were studied,and the correlation between wind speed and wave in strong wind and wave was analyzed.Affected by topography,the main wave direction is in the direction of S,strong wave is in the direction of SE,and the frequency of waves in the direction of E increases in autumn and winter.The annual normal wind direction is SW,the strong wind direction is SW,the spring and summer normal wind direction is SSW,the autumn and winter normal wind direction is NNW,the autumn wind speed more than 10 m/s has the largest frequency.There is a high correlation between wave height and wind speed during the occurrence of large waves.For the Suizhong port area in the northwest of Liaodong Bay,it is mainly affected by SE-S-SW waves,and the wave frequency in these directions exceeds 60%,resulting in the failure of the cofferdam on site and the poor stability of the berthing in the port.Therefore,it is advisable to extend the existing outer seawall,build temporary seawall and lay partially perforated caissons at the wave energy concentration area to improve the berthing conditions and reduce the number of lost operating days.
作者
齐越
张功瑾
夏波
高峰
刘针
董敏
QI Yue;ZHANG Gong-jin;XIA Bo;GAO Feng;LIU Zhen;DONG Min(Tianjin University, Tianjin 300072, China;State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China;School of Hydraulic Engineering, Changsha University of Technology, Changsha 410114, China;Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China;Transport Planning and Research Institute Ministry of Transport, Beijing 100028, China)
出处
《水道港口》
2021年第2期207-213,共7页
Journal of Waterway and Harbor
基金
天津市应用基础与前沿技术研究计划(17JCYBJC21900)
交通运输部天津水运工程科学研究院科研创新基金项目(TKS160206,TKS190304)。
关键词
辽东湾
波浪特征
季节变化
风-波浪相关性
泊稳条件
Liaodong Bay
wave characteristics
seasonal variation
wind-wave correlation
mooring condition
