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J4  2011, Vol. 45 Issue (7): 1319-1328    DOI: 10.3785/j.issn.1008-973X.2011.07.030
水利工程     
大型海洋倾倒区悬浮物迁移扩散的数值模拟
李佳,姚炎明,孙志林,黄赛花,杨晓东
浙江大学 港口海岸与近海工程研究所,浙江 杭州 310058
Numerical simulation of transport and dispersion of suspended
matter due to dredged sediment disposal into large marine dumping area
LI Jia, YAO Yan-ming, SUN Zhi-lin, HUANG Sai-hua, YANG Xiao-dong
Institute of Harbor Coast and Nearshore Engineering, Zhejiang University, Hangzhou 310058, China
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摘要:

以温州港进港航道疏浚工程的某大型海洋倾倒区为例,在验证良好的区域二维潮流数学模型的基础上,结合均匀分布函数设置的随机模型建立悬浮物迁移扩散模型,模拟该倾倒区附近海域在单船抛卸工况下产生的悬浮物质量浓度增量分布变化过程,得到周围海域悬浮物最大质量浓度增量分布情况.通过与相同情况下采用固定点源设置的模型计算结果进行比较,讨论对大型倾倒区采用随机点源设置的合理性及必要性.探讨随机点源设置与倾倒区尺度的关系,认为在瓯江口以外海域,对面积>1 km2的倾倒区作业期间悬浮物迁移扩散进行数值模拟,有必要采用随机点源设置.

Abstract:

Based on a well-verified two-dimensional mathematical model for tidal current, a numerical model combined with a stochastic model using the uniform distribution function was developed to study the transport and dispersion of suspended matter from a large marine dumping area for the project of dredging waterway into Wenzhou Harbor. The temporal and spatial distributions of the concentration of suspended matter disposed by a single workboat were simulated near the dumping area. The maximum increments of the suspended matter concentration were obtained. The stochastic point-source model showed more reasonable predictions compared with the results obtained from the fixed point-source model. The necessity of using the stochastic point-source model was discussed based on the scale of the marine dumping area. When the dumping area is more than 1 km2, the stochastic point-source approach should be used to simulate the transport and dispersion of suspended matter in the sea area beyond the Oujiang Estuary.

出版日期: 2011-07-01
:  TV 148.6  
基金资助:

浙江省科学技术厅优先主题重点社会发展资助项目(2009C13016).

通讯作者: 姚炎明,男,副教授.     E-mail: yym@zju.edu.cn
作者简介: 李佳(1980-),女,博士生,从事海岸工程和环境的研究. E-mail:pawpawjj@zju.edu.cn
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引用本文:

李佳,姚炎明,孙志林,黄赛花,杨晓东. 大型海洋倾倒区悬浮物迁移扩散的数值模拟[J]. J4, 2011, 45(7): 1319-1328.

LI Jia, YAO Yan-ming, SUN Zhi-lin, HUANG Sai-hua, YANG Xiao-dong. Numerical simulation of transport and dispersion of suspended
matter due to dredged sediment disposal into large marine dumping area. J4, 2011, 45(7): 1319-1328.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.07.030        https://www.zjujournals.com/eng/CN/Y2011/V45/I7/1319

[1] 韩康,黄河宁,杜波. 疏浚物海洋倾倒沉降过程的实验和数值模拟研究[J]. 海洋环境科学, 1990, 9(3): 1-5.
HAN Kang, HUANG Hening, DU Bo. Experimental and numerical study of the sedimentation of dredged materials when dumping at sea [J]. Marine Environmental Science, 1990, 9(3): 1-5.
[2] YING X, AKIYAMA J, MAO G. Modeling of motion of particle clouds formed by dumping dredged material [J]. China Ocean Engineering, 2001(1): 85-96.
[3] 章军军, 毛根海, 程伟平, 等. 静水中抛泥所形成的泥沙云团运动特征试验研究[J]. 水力发电学报, 2005, 24(3): 52-55.
ZHANG Junjun, MAO Genhai, CHENG Weiping, et al. Experimental study of particle clouds motion formed by dumping dredged sediment in quiescent water [J]. Journal of Hydroelectric Engineering, 2005, 24(3): 52-55.
[4] 毛根海, 程伟平, 章军军,等. 静水中抛泥过程泥沙云团下落运动机理研究[J]. 浙江大学学报:工学版, 2005, 39(11): 1663-1668.
MAO Genhai, CHENG Weiping, ZHANG Junjun, et al. Motion mechanism of particle clouds formed by dumping dredged material into quiescent water [J]. Journal of Zhejiang University: Engineering Science, 2005, 39(11): 1663-1668.
[5] 吴华林, 严以新, 周宜林. 抛泥运动研究述评及展望[J]. 泥沙研究, 2008(5): 76-80.
WU Hualin, YAN Yixin, ZHOU Yilin. Review on research of dumped silt movement [J]. Journal of Sediment Research, 2008(5): 76-80.
[6] 尹毅, 常乃环, 仲维妮, 等. 淇澳岛东南拋泥区对珠海九洲港航道的影响[J]. 海洋与湖沼, 1992, 23(3): 260-263.
YIN Yi, CHANG Naihuan, ZHONG Weini, et al. A study of influence of spoil ground southeast of Qiao island upon the siltation in ship channel in the Zhuhai Jiuzhou Port [J]. Oceanologia et Limnologia Sinica, 1992, 23(3): 260-263.
[7] 尹毅, 常乃环, 仲维妮. 天津港抛泥区泥沙运动规律的研究[J]. 海洋与湖沼, 1992, 23(6): 647-650.
YIN Yi, CHANG Naihuan, ZHONG Weini. A study on sediment movement trends in the Tianjing Port spoil ground [J]. Oceanologia et Limnologia Sinica, 1992, 23(6): 647-650.
[8] 孙连成. 黄骅港抛泥区泥沙运移规律研究[J]. 水运工程, 1997(8): 2-6.
SUN Liancheng. A study on sediment motion law in the dredged siltthrow n areaof Huanghua Port [J]. Port and Waterway Engineering, 1997(8): 2-6.
[9] 孙连成. 珠江口伶仃洋航道抛泥区泥沙运动规律研究[J]. 中国港湾建设, 1997(1): 7-10.
SUN Liancheng. A study on sediment motion law in the dredged siltthrow n area at Zhujiang Estuary [J]. China Harbor Engineering, 1997(1): 7-10.
[10] 李樟苏, 程和森, 曹更新, 等. 利用放射性示踪沙定量观测长江口北槽航道抛泥区底沙运动[J]. 海洋工程,1994, 12(2): 59-67.
LI Zhangsu, CHENG Hesen, CAO Gengxin, et al. Quantitative determination of sediment movement at the landward spoil ground in the Yangtze Estuary with radioactive tracer [J]. The Ocean Engineering, 1994, 12(2): 59-67.
[11] 易家豪. 疏浚抛泥扩散的二元有限元计算[J]. 水利水运工程学报, 1982(4): 70-77.
YI Jiahao. Numerical calculation of dredged materials’ transportation and dispersion during dumping with a 2D and finite element method [J]. HydroScience and Engineering, 1982(4): 70-77.
[12] 徐宏明. 疏浚土扩散数学模型及其应用[J]. 海洋环境科学, 2000, 19(2): 34-37.
XU Hongming. Numerical model of dredged sediment diffusion and application [J]. Marine Environmental Science, 2000, 19(2): 34-37.
[13] 陈祖华, 王光谦, 王志石. 河口抛泥数学模型及应用[J]. 水利水运工程学报, 2003, 3(1): 44-48.
CHEN Zuhua, WANG Guangqian, WANG Zhishi. Mathematical model for the movement of dumped silt in estuary and its application [J]. HydroScience and Engineering, 2003, 3(1): 44-48.
[14] 李蓓. 疏浚土吹填泥沙输移扩散数值模拟研究及应用[J]. 中国港湾建设, 2003, 4(2): 17-20.
LI Bei. Numerical modelling of sediment transport and spread from dredge spoil for hydraulic reclamation [J]. China Harbor Engineering, 2003, 4(2): 17-20.
[15] 赖永辉, 谈广鸣, 王军. 深圳港西部港区进出港航道工程疏浚泥水抛泥沙输移扩散规律研究[J]. 武汉大学学报:工学版, 2006, 39(3): 41-45.
LAI Yonghui, TAN Guangming, WANG Jun. Study on transmitting and spreading rules of dredging sediment of Shenzhen Western Port channel [J]. Engineering Journal of Wuhan University, 2006, 39(3): 41-45.
[16] 邱桔斐, 王瑜, 王长海. 开阔水域海洋倾倒区选划的初步研究:以长江口深水航道治理三期工程疏浚物临时海洋倾倒区选划为例[J]. 海岸工程, 2008, 27(1): 21-27.
QIU Jufei, WANG Yu, WANG Changhai. A preliminary study on selection and designation of du

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