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莱州湾东岸近岸海域规划围填海后冲淤演变预测周广镇, 冯秀丽, 刘杰, 刘潇, 徐芳 (, 266100) 摘要 : 运用 Mike21 模型中的水动力模块对研究区的潮流场进行了模拟, 分析研究区的冲淤趋势 ; 利用经验公式, 对波浪和潮流进行耦合, 计算出极端条件下的最大冲刷深度, 对比规划用海实施前后的最大冲刷深度, 以对该区域的海岸防护工程选址等提供科学依据结果表明 :

1 莱州湾东岸近岸海域规划围填海后冲淤演变预测周广镇, 冯秀丽, 刘杰, 刘潇, 徐芳 (, ) 摘要 : 运用 Mike21 模型中的水动力模块对研究区的潮流场进行了模拟, 分析研究区的冲淤趋势 ; 利用经验公式, 对波浪和潮流进行耦合, 计算出极端条件下的最大冲刷深度, 对比规划用海实施前后的最大冲刷深度, 以对该区域的海岸防护工程选址等提供科学依据结果表明 : 受到填海工程的影响, 龙口湾内有轻微淤积, 界河至石虎咀近岸海域的波浪和潮流受工程影响而变小, 冲刷强度变弱关键词 : 莱州湾东岸 ; 水动力演变 ; 最大冲刷深度中图分类号 : P751 文献标识码 : A 文章编号 : (2014) doi: /hykx , 4,, 50 km 2,,,, 50 a [1-3],, 1 自然概况 1.1 研究区地质地貌,,, ( 1 ),,,,,,,, 潟,, [4] 1.2 工程概况, 300 m,, 8.5 m,, 37 km 2 6 1, 500 m, 1 Fig. 1 Location of the reclamation and water depth of the study area NE-SW 500 m, NW-SE 300 m, NW-SE 200 m 54.8 km, 3.9 km 9 km 2 2 数值模拟简介 2.1 模型介绍及参数设置 MIKE21 : ; : : ( ) : (1986-),,,,, anchor.ocean@163.com; (1962-),, : , fengxiuli@ouc.edu.cn Marine Sciences / Vol. 38, No. 1 /

2 ,, 70, MIKE21FM Galerkin, [5], M 2, S 2, O 1, K 1,, ~ N, ~ E ( ) 潮位验证 : 00~ : 00( ) 3 26 h,,,,, 3 数值模拟结果分析 2, SW NE, 75 cm/s; 25 cm/s, 18~35 cm/s ( 3),, ;, 4~8 cm/s, 4~12 cm/s,, 24 cm/s; 0~8 cm/s,, 4 cm/s 4 极限冲刷深度预测计算 4.1 计算原理,,,,,,,,,,, : τ wcx = : ; 2 ρ g π 1/2 1/2 fw C h u v m c τ wcx ; f w vc ; Ch Fig. 2 2 Comparison of tide current field of the study area 16 / 2014 / 38 / 1

Fig.3 3 Flow velocity changes after the coastal planning 1/2 L, T, m 1/2 /s [6], τ b : 0.64 0.72 ρs 0.64 0.08 τb = 0.3ν 1 ρg d ρ : ν ; ρs ; ρ ; d 908 3, surfer8.0,, 120 m,,, 4.2 极限冲刷深度预测结果 4.2.1 N,,,,, 1 000 m, 0~4 m, 4.

3 Fig.3 3 Flow velocity changes after the coastal planning 1/2 L, T, m 1/2 /s [6], τ b : ρs τb = 0.3ν 1 ρg d ρ : ν ; ρs ; ρ ; d 908 3, surfer8.0,, 120 m,,, 4.2 极限冲刷深度预测结果 N,,,,, m, 0~4 m, NE,,,, 4 1,,,, ;,,, ;, 5 结论 Mike21, ;, : (1), ;, 4~8 cm/s, 4~12 cm/s,, 24 cm/s; 0~8 cm/s,, 4 cm/s (2),, ; ; 表 1 工程前后八级 N 和 NE 向风最大冲刷深度对比表 Tab.1 The comparison between the maximum scour depth before and after the engineering N and NE direction 8 degree wind (m) N NE 3~ ~2 1 1~2 0~2 0 3~4 1~3 0~ ~4 1~2 1~2 0~ ~1 0 3~4 1~3 0~1 0 0 Marine Sciences / Vol. 38, No. 1 /

Fig. 4 4 N, NE The maximum scouring depth after and before the engineering, : [1],,,. [J]., 1989, 19 (1): 90-98. [2]. [D]. :, 2008. [3],. [J]., 2005, 16(03): 225-230. [4]. : - [M]. :, 1991: 1-79.

4 Fig. 4 4 N, NE The maximum scouring depth after and before the engineering, : [1],,,. [J]., 1989, 19 (1): [2]. [D]. :, [3],. [J]., 2005, 16(03): [4]. : - [M]. :, 1991: [5] Janssen P, Lionello P, Zambresky L. On the interaction of wind and waves [J]. Philosophical transactions of the royal society of London. Series A, Mathematical and Physical Sciences, 1989, 329(1604): [6],,. [J]., 2003, 3: [7] Silvester R. Coastal Engineering 2: Sedimentation, Estuaries, Tides, Effluents, and Modelling [M]. Netherlands: Elsevier Scientific Publishing Company, 1974: [8] Hsu J R C, Silvester R, Xia Y M. Static equilibrium bays: new relationships [J]. Journal of Waterway, Port, Coastal, and Ocean Engineering, 1989, 115(3): / 2014 / 38 / 1

5 Prediction of erosion evolution and deposition in the east coast of the Laizhou Bay after the implemention of the coastal planning ZHOU Guang-zhen, FENG Xiu-li, LIU Jie, LIU Xiao, XU Fang (College of marine geosciences, Ocean University of China, Qingdao , China) Received: May, 17, 2012 Key words: east coast of the Laizhou Bay; hydrodynamic evolution; the limit depth of scouring Abstract: In this paper, the hydrodynamic model of Mike21 was used to simulate the flow current, deposition characteristics of the east coast of the Laizhou Bay, to predict its erosion and deposition evolution, Coupling the wave and current, to calculate the limit depth of scouring using empirical formula. By comparing the limit depth of scouring before and after planning reclamation, we found that the Longkou Bay would have a slight deposition. The wave and current of coastal water between the Jiehe River and Shihu area would become smaller and erosion intensity would become weaker, under the influence of engineering. All these analyses have shown that the coastal water between the Jiehe River and Shihu area would change from erosion to deposition when the planning reclamation is implemented. ( 本文编辑 : 刘珊珊李晓燕 ) Marine Sciences / Vol. 38, No. 1 /

~ a 3 h NCEP ~ 24 3 ~ ~ 8 9 ~ km m ~ 500 m 500 ~ 800 m 800 ~ m a 200

~ a 3 h NCEP ~ 24 3 ~ ~ 8 9 ~ km m ~ 500 m 500 ~ 800 m 800 ~ m a 200 31 1 2013 3 Journal of Arid Meteorology Vol. 31 No. 1 March 2013. J. 2013 31 1 62-69. doi 10. 11755 /j. issn. 1006-7639 2013-01 - 0062 211101 2000 ~ 2010 3 h 2. 5 2. 5 NCEP 2 5 ~ 7 02 11 05 ~ 08 2 ~ 8