象山港防台风等级评估

发布时间：2018-01-14 16:05

本文关键词：象山港防台风等级评估　出处：《自然灾害学报》2017年05期 　论文类型：期刊论文

【摘要】：基于大小网格嵌套的Delft3D模型,数值模拟了浙江省象山港内的3个月天文潮和"海葵"(1211号)台风影响下象山港的增水过程,用3个临时潮位站和13个潮流测点资料对天文潮进行验证,并用9个测站对风暴潮位进行验证,结果符合良好。根据多年风向统计确定的强风向设计了12级至17级的虚拟台风,通过网格嵌套的波流耦合模拟获得象山港内风暴潮位、流速和有效波高的分布,首次进行岸线设施、锚泊地和防波堤3个单项的防台风等级评估,得到相应等级为13级、16级和15级。按"就低不就高"原则确定象山港防台等级为13级;按加权平均确定综合防台等级为14.85级。目的旨在为《浙江省渔港防台风等级评估技术导则》的编制提供方法和案例。
[Abstract]:Based on the Delft3D model with large and small mesh nesting, the process of water increase in Xiangshan Port under the influence of typhoon "sea anemone" No. 1211 and astronomical tide in Xiangshan Port, Zhejiang Province, is numerically simulated. The astronomical tide was verified by the data of 3 temporary tidal stations and 13 tidal current points, and the storm tide level was verified by 9 stations. The results are in good agreement. According to the strong wind direction determined by wind direction statistics for many years, a virtual typhoon with magnitude 12 to 17 is designed, and the storm surge level in Xiangshan Port is obtained by coupled simulation of wave and current nested in grid. For the first time, the distribution of velocity and effective wave height is evaluated for the three individual typhoon prevention grades of shoreline facilities, mooring ground and breakwater, and the corresponding grade is 13. Grade 16 and grade 15. According to the principle of "on the basis of low or high", the Xiangshan port defense level is determined to be 13; According to the weighted average, the comprehensive protection level is determined to be 14.85. The purpose of this paper is to provide a method and a case for the compilation of the Technical guidelines for the Evaluation of Typhoon Prevention in Fishery Port of Zhejiang Province.
【作者单位】：浙江大学港口海岸及近海工程研究所;国家海洋局第二海洋研究所;
【基金】：国家基金重大研究计划项目(91647209) 国家重点研发计划(2016YFC0402305-02)~~
【分类号】：U698.91
【正文快照】： Supported by:Major Research Plan of National Natural Science Foundation of China(91647209);Major State Research Development Program ofChina(2016YFC0402305-02)中国每年遭受各种自然灾害,气象灾害约占到70%以上[1]。其中,台风灾害位居中国海洋灾害之首,浙江省是我

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