防波堤建设对海底泥沙冲淤环境影响研究

以烟台八角海域为例,分别采用数值模拟计算与实测值对比两种方式分析评价防波堤建设对海底冲淤变化的影响。研究结果表明,防波堤建设导致研究区海底沉积物由原来的平衡状态转变为"浅水冲深水淤"的态势,冲刷及淤积速率均为0~0.06m/a。除构筑物附近等边界区域外,模型计算结果与实测泥沙运移趋势基本一致。

Research on the Influence of Breakwater Construction to Seabed Sediment Scouring and Silting Environment

By taking the Baj iao sea area of Yantai as an example,the influence of break-water construction to seabed sediment scouring and silting environment is studied and e-valuated by numerical simulation and comparison with measured data respectively.The results show that the breakwater construction in the study area can lead to a change of seabed sedimentation from the original equilibrium state into a state of"scouring in the shallow water and depositing in the deepwater",with the scouring and the depositing rates being both 0~0.06 m/a.It is also revealed that the trends of sediment transporta-tion resulted from the numerical calculations and the measurements are basically the same in the study area,except for the boundary areas close to the breakwater.