港口岸线退岸还海修复工程防波堤方案设计

在港口岸线退岸还海修复整治工程中,为有效保护人工岸滩的稳定性,需在工程海域建设防波堤。以日照港石臼港区原煤堆场岸线退岸还海修复整治工程为例,采用MEPBay模型,对不同防波堤位置长度下岸滩稳定性进行分析,并分析工程建成后泥沙运动情况。计算结果表明:合理的防波堤位置及长度可保持沙滩的稳定性;防波堤短则沙滩南段侵蚀严重,长则沙滩北段侵蚀严重、南侧泥化。

Breakwater scheme design in regulation project of returning port shoreline to shore

In the regulation project of returning port shoreline to beach,in order to maintain the stability of man-made shore, breakwater should be built in the engineering sea area.Taking the regulation project of returning port shoreline to beach in Rizhao Port Shijiu port area coal storage yard as an example,based on the model of MEPBay,this paper analyses shore stability under various schemes of breakwater,and calculates the sediment movement after the project.The calculation result shows that the beach stability can be maintained by reasonable breakwater location and length.If the breakwater is short,the south side of the beach will be more seriously eroded.Otherwise,the north side of the beach will be more seriously eroded and the south side of the beach will be muddied.