上海石化近岸海床冲淤特征与海堤稳定性分析

doi:10.11870/cjlyzyyhj201508005

长江流域资源与环境 >> 2015, Vol. 24 >> Issue (08): 1293-1298.doi: 10.11870/cjlyzyyhj201508005

上海石化近岸海床冲淤特征与海堤稳定性分析

郑璐^1,2, 李梦雅^1,2, 王军^1,2, 张伟³, 何晓峰³

1. 华东师范大学地理科学学院, 上海 200241;
2. 华东师范大学地理信息科学教育部重点实验室, 上海 200241;
3. 上海石化海堤管理所, 上海 200540

收稿日期:2014-09-04 修回日期:2015-01-26 出版日期:2015-08-20
作者简介:郑璐(1991~),女,硕士研究生,主要从事沿海灾害风险研究.E-mail:51130801055@ecnu.cn
基金资助:
国家自然科学基金项目(71373084); 上海市教育委员会科研创新重点项目(13ZZ035)

ANALYSIS ON THE EROSION-ACCRETION CHANGES OF SHANGHAI PETROCHEMICAL COMPLEX OFFSHORE SEABED AND THE SEAWALL STABILITY

ZHENG Lu^1,2, LI Meng-ya^1,2, WANG Jun^1,2, ZHANG Wei³, HE Xiao-feng³

1. School of Geographic Sciences, East China Normal University, Shanghai 200241, China;
2. Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200241, China;
3. Shanghai Petrochemical Complex seawall management, Shanghai 200540, China

Received:2014-09-04 Revised:2015-01-26 Online:2015-08-20
Contact: 王军 E-mail:jwang@geo.ecnu.edu.cn E-mail:jwang@geo.ecnu.edu.cn

摘要/Abstract

摘要： 运用GIS对2000~2013年上海石化近岸海床冲淤特征、机制及海堤稳定性进行研究。结果表明:(1)2000~2013年海床大范围为淤积区,但金山深槽冲刷强度较大。其中,2000~2004、2004~2008年以冲刷为主,年均净冲刷速率为5.27 cm和10.52 cm;2008~2012年以淤积为主,年均净淤积速率为8.50 cm;2012~2013年冲淤较稳定,稳定区占总面积的76.04%;(2)8个断面北岸及深槽中部(断面Ⅴ)地形较稳定,但在深槽西部(断面Ⅰ和Ⅱ)和东部(断面Ⅶ和Ⅷ)南侧冲刷;离岸15m以浅海床以淤积为主;(3)海堤稳定评估中,第六次围堤岸段稳定性较低。总之,海床的冲刷与金山涨潮冲刷槽补沙机制的丧失有关,同时城市沙滩、南汇促淤等工程也有影响,新一轮涉水旅游项目正在开发中,需密切关注。

关键词: 海床冲淤, 海堤稳定性, 上海石化, 杭州湾

Abstract: The erosion-accretion characteristics and the underlying mechanisms of the Shanghai Petrochemical Complex(SPC) offshore seabed in 2000-2013, together with the stability evaluation of the seawall was studied with GIS software. Results indicate that: (1) Most areas of the seabed were in state of accretion in 2000-2013, but there emerged a great scouring intensity in the Jinshan Trough. Among them, the evolution of study areas was given priority to erosion in 2000-2004 and 2004-2008, with an average annual net erosion rate of 5.27 cm and 10.52 cm, respectively. But it was in accretion state in general in 2008-2012, with an average annual net accretion rate of to 8.50 cm. The study areas were mostly in steady state in 2012-2013, accounting for 76.04% of the total. (2) Analyses on the 8 cross sections showed that the terrain in the north was in relatively steady state. The terrain in the middle of the deep trough (section Ⅴ) was stable, but the Jinshan Trough was scoured southward in the west (section Ⅰ and Ⅱ) and east (the section Ⅶ and Ⅷ). And the areas shallower than 15 m were given priority to accretion in the south of study areas. (3) The seawall stability evaluation showed that the seawall was in primary and secondary stability level centrally distributed on the sixth coastal levee. For more than a decade, the erosion-accretion characteristics of the SPC offshore seabed was closely related to the loss of sand transport in Jinshan flood trough, and wading engineering constructions such as city beach and large-scale deposition promotion projects in Nanhui. New wading tourism development project is under developing, which still need much more concern.

Key words: erosion-accretion characteristics of the seabed, seawall stability, Shanghai Petrochemical Complex, Hangzhou bay

中图分类号:

K825.89

郑璐, 李梦雅, 王军, 张伟, 何晓峰. 上海石化近岸海床冲淤特征与海堤稳定性分析[J]. 长江流域资源与环境, 2015, 24(08): 1293-1298.

ZHENG Lu, LI Meng-ya, WANG Jun, ZHANG Wei, HE Xiao-feng. ANALYSIS ON THE EROSION-ACCRETION CHANGES OF SHANGHAI PETROCHEMICAL COMPLEX OFFSHORE SEABED AND THE SEAWALL STABILITY[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2015, 24(08): 1293-1298.

参考文献

[1] JL SU, WANG KS. Changjiang River plume and suspended sediment transport in Hangzhou Bay[J]. Continental Shelf Research, 1989, 9(1):93-111.
[2] 孔俊,叶荣辉,薛晓晓,等.南汇东滩对长江口与杭州湾泥沙交换的影响研究[J].水道港口,2009,30(2):77-81.
[3] 茅志昌,郭建强,虞志英,等.杭州湾北岸岸滩冲淤分析[J].海洋工程,2008,26(1):108-113.
[4] 谢东风,潘存鸿,曹颖,等.近50年来杭州湾冲淤变化规律与机制研究[J].海洋学报,2013,35(4):121-128.
[5] 张建明.上海石化海堤安全性探讨及对策建议[J].中国高新技术企业,2009,23:128-131.

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