某陆域形成工程水动力与泥沙冲淤影响数值分析

利用平面二维浅水潮波运动方程和连续方程,结合潮位站实测资料进行验证,得出较为符合实际的流场,对工程附近区域在工程后的水动力和泥沙冲淤影响进行分析。结果表明,工程完成后,对附近海域流场基本没有影响,影响范围仅限于工程周边区域。泥沙冲淤的影响范围为以围填区为中心向北2 km,向西1.2 km,向西南2 km的范围内,最大冲刷0.8 m,最大淤积3 m。

Numerical analysis of impact of hydrodynamic force and sediment scouring and silting concerning land formation engineering

Using two-dimensional shallow-water tidal wave motion equation and continuity equation, combining with measured data to verify the trend of points, we obtain the realistic flow field, and then analyze the impact from hydrodynamic force and sediment scouring and silting near the engineering site. The results show that the implementation of the project has little impact on the nearby sea flow field except the engineering-neighboring area, and the impact scope is northward 2 km centering the reclaimed area, 1.2 km westward, and 2 km southwest. The maximum scouring is 0.8 m and the largest deposition thickness is 3 m.