本文選題：海床沖淤 + 海堤穩(wěn)定性��； 參考：《長江流域資源與環(huán)境》2015年08期

【摘要】：運用GIS對2000~2013年上海石化近岸海床沖淤特征、機制及海堤穩(wěn)定性進行研究。結(jié)果表明:(1)2000~2013年海床大范圍為淤積區(qū),但金山深槽沖刷強度較大。其中,2000~2004、2004~2008年以沖刷為主,年均凈沖刷速率為5.27cm和10.52cm;2008~2012年以淤積為主,年均凈淤積速率為8.50cm;2012~2013年沖淤較穩(wěn)定,穩(wěn)定區(qū)占總面積的76.04%;(2)8個斷面北岸及深槽中部(斷面Ⅴ)地形較穩(wěn)定,但在深槽西部(斷面Ⅰ和Ⅱ)和東部(斷面Ⅶ和Ⅷ)南側(cè)沖刷;離岸15m以淺海床以淤積為主;(3)海堤穩(wěn)定評估中,第六次圍堤岸段穩(wěn)定性較低�？傊�,海床的沖刷與金山漲潮沖刷槽補沙機制的喪失有關(guān),同時城市沙灘、南匯促淤等工程也有影響,新一輪涉水旅游項目正在開發(fā)中,需密切關(guān)注。
[Abstract]:The characteristics, mechanism and stability of offshore seabed scour and deposition in Shanghai Petrochemical Corporation from 2000 to 2013 were studied by GIS. The results show that the sea bed is a silt area from 2000 to 2013, but the erosion intensity of Jinshan deep trough is high. From 2004 to 2008, the annual net scour rate was 5.27cm and 10.52 cm / L, and the average annual net deposition rate was 8.50 cm / a from 2012 to 2012. The scour and siltation were stable from 2012 to 2013, and the stable area accounted for 76.04 / 2 of the total area.) the topography of the north shore and the middle part (section 鈪，

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