海洋工程对砂质海岸演变的影响——以海南万宁日月湾人工岛为例  

Influence on the sandy coast evolution of the ocean engineering ——A case study of artificial Riyue island,Wanning city,Hainan Island

作　　者：李汉英 张红玉[3] 王霞 于红兵[3] 徐玉芬[3] 刘兴健[1] 张叶春 LI Han-ying;ZHANG Hong-yu;WANG Xia;YU Hong-bing;XU Yu-fen;LIU Xing-jian;ZHANG Ye-chun(Key Laboratory of Ocean and Marginal Sea Geology,South China Sea Institute of Oceanology Chinese Academy of Sciences,Guangzhou 510301,China;University of Chinese Academy of Sciences,Beijing 100049 ,China;Marine Environmental Engineering Center,South China Sea Institute of Oceanology Chinese Academy of Sciences,Guangzhou 510301,China;State key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology Chinese Academy of Sciences,Guangzhou 510301,China)

机构地区：[1]中国科学院边缘海与大洋地质重点实验室(南海海洋研究所),广东广州510301 [2]中国科学院大学,北京100049 [3]中国科学院南海海洋研究所,海洋环境工程中心,广东广州510301 [4]中国科学院热带海洋环境国家重点实验室(南海海洋研究所),广东广州510301

出　　处：《海洋环境科学》2019年第4期575-581,共7页Marine Environmental Science

基　　金：中国科学院边缘海地质重点实验室项目(MSGL13-07);国土资源部海底矿产资源重点实验室开放基金(KLMMR-2014-B-04)

摘　　要：日月岛工程的建设,使日月湾海湾的侵蚀和淤积在短期内发生了快速的变化,西南侧海岸的侵蚀威胁了陆侧青皮林自然保护区的生长。对日月湾海岸进行监测管理变得刻不容缓。结合多时相遥感影像和四期实测岸滩数据,探讨日月岛工程的建设对日月湾海岸的冲淤影响。日岛岛影区岸滩淤涨,2016年已形成连岛沙坝,总淤积宽度约370 m,长度约1500 m;日岛东北侧受日岛建成后波浪折射与绕射等的影响发生侵蚀现象,最大侵蚀宽度约20m,长度约380 m。日岛西南侧出现严重的侵蚀后退现象,侵蚀宽度约40 m,长度约2000 m。月岛工程的建设改善了西南侧的侵蚀现象,然而仍有约800 m的岸线处于侵蚀状态。综合考虑自然因素与技术条件,丁坝、人工补沙与厚藤生态养护结合的海岸修复方式是适用于日月湾海岸的修复方法。The construction projects on artificial Riyue islands have led to a fast change of coastal erosion and deposition on Riyue bay.The erosion of the southwest coast has threatened the development of the vitica mangachapoi forest natural reserves on the land.Monitoring and management of Riyue bay becomes an urgent demand.With the studies of multi-temporal remote sensing images and four groups of costal testing data,following erosive and depositional effects of constructions on Riyue bay can be discussed.Due to the depositional growth of shadow zone of artifical Riyue islands,a tombolo was formed in 2016 with a width of 370 meters and a length of 1,500 meter;at the northeast side of artifical Ri island,erosion was created because of the wave refraction and diffraction after the construction was done,witch with a width of 20 meters and a length of 380 meters.At the southeast side of artifical Ri island,severe erosions and retreats were found.The erosive width is around 40 meters and the erosive length is around 2,000 meters.The construction projects on artifical Yue island have improved the erosive problems on southeast side.However,800 meters of costal line still lays in an erosive state.Considering the natural situations and technical capacities comprehensively,the combination of groyne,artificial sand filling as well as ecological conservation of ipomoea pes-caprae would be the most suitable solution.

关 键 词：人工岛 砂质海岸 海岸演变 日月湾 

分 类 号：P753[交通运输工程—港口、海岸及近海工程]