首页 | 本学科首页   官方微博 | 高级检索  
     检索      

长江口北槽深水航道工程对九段沙冲淤影响研究
引用本文:杜景龙,杨世伦,张文祥,李鹏,赵华云.长江口北槽深水航道工程对九段沙冲淤影响研究[J].海洋工程,2005,23(3):78-83.
作者姓名:杜景龙  杨世伦  张文祥  李鹏  赵华云
作者单位:1. 华东师范大学,河口海岸国家重点实验室,上海,200062;苏州科技学院,城市与环境学系,江苏,苏州,215011
2. 华东师范大学,河口海岸国家重点实验室,上海,200062
基金项目:上海市重大攻关课题资助项目(04DZ19305);国家重大基础研究发展规划(973)资助项目(2002CB412407);国家自然科学基金资助项目(40076027)和华东师大河口海岸国家重点实验室开放基金资助项目(200508)
摘    要:根据1989~2003年长江口九段沙附近地形图,在地理信息系统软件MapInfo的支持下,分析了北槽深水航道工程对九段沙冲淤演变的影响。在长江来沙减少总的情势下,九段沙总的淤积速率在明显下降,但北槽深水航道工程使局部冲淤形势发生逆转:九段沙顶端到江亚南沙大片区域淤积速率显著增强,沿北槽深水航道南导堤外缘形成一个10km长的淤积带;九段沙东侧水下三角洲受工程的影响不大,淤积速率持续降低并底端发生冲刷。

关 键 词:九段沙  北槽  深水航道工程  冲淤演变  长江口
文章编号:1005-9865(2005)03-0078-06
收稿时间:2004-06-24
修稿时间:2004年6月24日

Study of influence on erosion and accumulation of Jiuduansha Tidal Island by Deep-Water Channel Project at North Passage of the Yangtse River
Du JingLong;Yang ShiLun;Zhang WenXiang;Li Peng;Zhao HuaYun.Study of influence on erosion and accumulation of Jiuduansha Tidal Island by Deep-Water Channel Project at North Passage of the Yangtse River[J].Ocean Engineering,2005,23(3):78-83.
Authors:Du JingLong;Yang ShiLun;Zhang WenXiang;Li Peng;Zhao HuaYun
Abstract:Based on the topographic map of 19892003 around the Jiuduansha tidal island at the mouth of the Yangtse River and supported by the software of MapInfo, this paper has analyzed the influence on the erosion and accumulation of Jiuduansha by the deep-water channel project at the North Passage. The purpose is to find the change of its erosion and accumulation under the project. It is found that with the reduction of bedload from the Yangtse River in general, the silting speed of JiuDuanSha is evidently falling, while the project has made it reverse in some areas: the silting obviously speeds up from the top of Jiuduansha to Jiangya South Shoal, which forms a silting strip about 10 km along the south bank of the passage; meanwhile, a little effect occurs on the delta under the water east to Jiuduansha; the depositing speed continues to fall and erosion appears down to the delta.
Keywords:Jiuduansha tidal island  North Passage  Deep-Water Channel Project  change in erosion and accumulation  Yangtze River estuary
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《海洋工程》浏览原始摘要信息
点击此处可从《海洋工程》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号