收稿日期: 2009-10-14
修回日期: 2010-01-04
网络出版日期: 2011-09-08
基金资助
浙江省科技厅面上项目(2009C33083)
Prediction of the effect of reclamation near Liangtan Island in Zhoushan water area
Received date: 2009-10-14
Revised date: 2010-01-04
Online published: 2011-09-08
用一个三维(ECOMSED)模式对舟山凉潭岛填海工程前后的潮流场变化进行模拟, 做出预测。潮流场模拟结
果与实测基本吻合。经分析可知, 工程对潮流的影响主要在围堤的东南角小范围内: 工程后流速明显减小, 造成
淤积现象, 但淤积程度不大, 1 年后的淤积为 13cm 左右, 5 年后的淤积为 0.8—1.2m 左右。工程对较深水层的潮流
运动影响很小。通过对施工期间产生的悬浮物在涨落潮时的分布模拟可知, 涨潮时, 悬浮物从工程区域的一个悬
浮物源不断排出, 主要对工程附近及其上游地区造成一定的影响; 落潮时, 悬浮物主要影响工程外围及其下游地
区, 整个落潮期间悬浮物能影响的范围比涨潮期间要大。总体上工程对该附近海域的潮流场及冲淤影响很小。
吴仁豪 ,童元正 ,张旭锋 ,赵晟 ,孙健 ,娄建富 ,王海平 . 舟山凉潭岛填海工程对水动力及海床演变影响的模拟预测分析[J]. 热带海洋学报, 2011 , 30(4) : 24 -30 . DOI: 10.11978/j.issn.1009-5470.2011.04.024
A three-dimensional ocean model (ECOMSED) is used to simulate and predict the effect of reclamation activity on
the local tidal current near Liangtan Island in Zhoushan. The computed results of tidal current basically agree with the obser-
vations. It is shown that the local tidal current is affected by the reclamation mainly in a small area located at the southeast
corner of the reclaimed area where a pronounced reduction appears in tidal current velocity and causes a slight sedimentation.
The extent of the sedimentation is 13 cm and 0.8-1.2 m one year and five years after the reclamation, respectively. The recla-
mation has a slight influence on the deeper current. The distribution of the suspended substance caused by the reclamation
shows that the suspended substance coming from an unceasing discharging source has a main effect on the adjacent and up-
stream areas during the flood tide period, and on the periphery and downstream areas during the ebb tide period. Furthermore,
the affected area is larger during the ebb tide period than during the flood tide period. As a whole, the reclamation project has a
slight effect on the local tidal current as well as erosion and siltation.
Key words: numerical simulation; tidal current; sediment; erosion and siltation
[1] 夏华永, 林迪洋, 钮智旺. 湛江湾填海工程对水动力条件的影响预测[J]. 海洋通报, 2006, 25(6): 47-54.
[2] 吴英霞, 夏华永, 马应良. 大虎水道东南部水域海砂开采水动力环境影响及泥沙扩散浓度预测[J]. 人民珠江, 2004, (4): 10-14.
[3] 许雪峰, 羊天柱. 三门湾多个围垦工程的整体影响数学模型研究[J]. 海洋学研究, 2006, 24(增刊): 49-59.
[4] 孙文心, 江文胜, 李磊.近海环境流体动力学数值模型[M].北京: 科学出版社, 2004: 230-232.
[5] BLUMBERG A F. An estuarine and coastal ocean version of POM: Proceedings of the princeton ocean model users meeting (POM96) [C]. U S: Princeton, 1996: 9-9.
[6] MELLOR G L,YAMADA T. Development of a turbulence closure model of geophysical layers[J]. Journal of Atmospheric Science, 1974, 33: 1791-1896.
[7] SMAGORINSKY J. General circulation experiments with the primitive equations Ⅰ:The basic experiment[J]. Monthly Weather Review, 1963, 91(3): 99-164.
[8] VAN RIJN L C. Principles of Sediment Transport in Rivers, Estuaries and Coastal Seas[M]. Netherlands: Aqua Publications, 1993: 93-110.
[9] GAILANI J. ZIEGLER C K, LICK W. The transport of sediments in the Fox River[J]. Journal of Great Lakes Research, 1991, 17: 479-494.
[10] KRONE R B. Flume Studies of the Transport of Sediment in Estuarial Processes: Final Report[R]. Hydraulic Engineering Laboratory and Sanitary Engineering Research Laboratory, University of California, Berkeley, 1962: 10-90.
[11] 堵盘军, 胡克林, 孔亚珍, 等. ECOMSED 模式在杭州湾海域流场模拟中的应用[J]. 海洋学报, 2007, 29(1): 7-16.
[12] 张燕, 张越美, 孙英兰, 等. 宁波—舟山海域环境容量研究Ⅰ. 三维潮流数值模拟[J]. 海洋环境科学, 2005, 24(3): 60-63.
[13] 薛刚. 岚山港西突堤工程对海底冲淤影响预测[D]. 青岛: 中国海洋大学, 2007: 24-35.
[14] 陈倩. 浙江近海潮汐潮流的三维数值模拟[D]. 杭州: 浙江大学, 2002: 86-93.
/
〈 | 〉 |