舟山册子岛-镇海海底管道附近海床冲淤数值模拟研究

朱府; 叶银灿; 黄潘阳; 刘杜娟

doi:10.3969/j.issn.1001-909X.2014.01.009

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海洋学研究 ›› 2014, Vol. 32 ›› Issue (1) : 74-81. DOI: 10.3969/j.issn.1001-909X.2014.01.009

研究论文

舟山册子岛-镇海海底管道附近海床冲淤数值模拟研究

朱府, 叶银灿, 黄潘阳, 刘杜娟

作者信息 +

Simulation analysis on scouring and silting stability of the seafloor with submarine pipeline from Cezi Island to Zhenhai

ZHU Fu, YE Yin-can, HUANG Pan-yang, LIU Du-juan

Author information +

文章历史 +

摘要

舟山册子岛-镇海段海底原油管道连续多年监测数据显示,局部海床冲刷较为严重,管道多处裸露、悬空,对工程安全构成威胁。基于Delft3D建立杭州湾口二维水流泥沙数学模型,并利用实测潮位、流速、流向及悬沙质量浓度资料对模型进行率定与验证,进而模拟分析近年来人为开发活动对海底管道附近海床冲淤变化的影响。分析结果表明,新泓口围垦工程和金塘大桥工程对管线镇海登陆段海床冲刷影响较大,金塘大桥桥墩阻水作用加剧了管线深槽边坡西半段海床的冲刷,另外管线深潭延伸东半段的海床冲刷与金塘大桥主通航孔密切相关。

Abstract

According to the monitoring data over consecutive years for the seabed where submarine pipeline is from Cezi Island to Zhenhai, the results indicate seriously scouring phenomenon. For the purpose of making analysis about human activity influence, a two-dimensional numerical model was set up to simulate hydrodynamics and sediment environment of the Hangzhou Bay with Delft3D. This model had been calibrated and validated with observed data of tidal level, currents and suspended sediment concentration. The results show that the reclamation in Xinhongkou of Zhenhai and Jintang Bridge have a great impact on the seabed scouring of the landing position in Zhenhai. The results also show that the water-blocking effect of Jintang Bridge could aggravate the seabed scouring of the slope position in scouring channels, and that the seabed scouring of the extension position in deep pools is closely related with the main navigable hole of Jintang Bridge.

导出引用

朱府, 叶银灿, 黄潘阳, 刘杜娟. 舟山册子岛-镇海海底管道附近海床冲淤数值模拟研究[J]. 海洋学研究. 2014, 32(1): 74-81 https://doi.org/10.3969/j.issn.1001-909X.2014.01.009

ZHU Fu, YE Yin-can, HUANG Pan-yang, LIU Du-juan. Simulation analysis on scouring and silting stability of the seafloor with submarine pipeline from Cezi Island to Zhenhai[J]. Journal of Marine Sciences. 2014, 32(1): 74-81 https://doi.org/10.3969/j.issn.1001-909X.2014.01.009

中图分类号： TV148

参考文献

[1] YAN Xiang-zhen,LIU Jin-kun,XU Zhi-qian,et al. Fatigue reliability test and life prediction of submarine pipeline[J].Journal of China University of Petroleum,2010,34(5):109-113.
闫相祯,刘锦昆,许志倩,等.服役海底管道刚疲劳可靠性试验与海底管道寿命预测[J].中国海洋大学学报:自然科学版,2010,34(5):109-113.
[2] HUANG Shi-chang,ZHANG Shu-yu,YU Jiong. Investigation on seabed evolution of Huibieyang zone in Hangzhou Bay[J].Journal of Sediment Research,2005(1):46-52.
黄世昌,张舒羽,余炯.杭州湾灰鳖洋海域海床演变趋势研究[J].泥沙研究,2005(1):46-52.
[3] HAO Pin-zheng,PU Xiao-gang. Model test on the channel variation in the dam area of Zhuzhou navigation complex in Xiangjiang[J].Journal of Sediment Research,2005(4):35-40.
郝品正,普晓刚.湘江株洲航电枢纽坝区河段河床变形预报试验研究[J].泥沙研究,2005(4):35-40.
[4] LI Meng-guo. A review on mathematical models of sediment in coastal and estuarine waters[J].The Ocean Engineering,2006,24(1):139-151.
李孟国.海岸河口泥沙数学模型研究进展[J].海洋工程,2006,24(1):139-151.
[5] CHEN Dao-xin,CHEN Mu-yong,ZHANG Chi. Influence of reclamation projects on hydrodynamic force in offshore and estuary of Wenzhou[J].Journal of Hohai University:Natural Sciences,2009,37(4):457-462.
陈道信,陈木永,张弛.围垦工程对温州近海及河口水动力的影响[J].河海大学学报:自然科学版,2009,37(4):457-462.
[6] HU Ke-lin,DING Ping-xing,WANG Zheng-bing,et al. A 2D/3D hydrodynamic and sediment transport model for the Yangtze Estuary of China[J].Journal of Marine Systems,2009,77(1-2):114-136.
[7] LU Xiang-xing,SHI Ying-biao,WANG Min. Prediction about seabed erosion/siltation near the water intake of Third-phase Project for Qinshan Nuclear Power Plant[J].Journal of Sediment Research,2000(6):10-15.
卢祥兴,史英标,王敏.秦山核电三期工程取水口冲淤变化研究和预测[J].泥沙研究,2000(6):10-15.
[8] China Bay Records Compiling Committee. Chinese bay records:The fifth section[M].Beijing:Ocean Press,1992:40-41.
中国海湾志编纂委员会.中国海湾志(第五分册)[M].北京:海洋出版社,1992:40-41.