摘要
文章针对潍坊滨海旅游度假区人工沙滩防护工程进行研究,分析了工程海域自然条件和沙滩侵蚀成因,对滩沙水力特性进行了实验研究,最后通过波浪泥沙整体物理模型试验手段,分析了丁坝防护工程建设后的整治效果。其主要结论如下:潍坊滨海旅游度假区人工沙滩侵蚀的破坏性动力来自NE向波浪的持续向西输沙;正常天气下人工沙滩年损失量约为2万m^3,在极端高水位下如遭遇10 a一遇大浪作用24 h条件下,沙滩损失量为1.2万m^3,人工沙滩年损失量约为7.7万m^3;优化方案实施后,防护工程实施1 a后,人工沙滩年损失量约为6.4万m^3,约占总铺砂量的6%;且抑制东湾内泥沙在风暴潮增水作用下向西湾输送,达到了优化目的。
The protection engineering for the artificial beach in Weifang seashore tourism resort was researched through analysis of the natural condition of the engineering sea area and the reason for the beach erosion,hydraulic characteristics tests of the sediment, and the analysis of the effect of the spur dike protection engineeringbased on the wave-sediment physical model tests. Conclusions are drawn as follows： the driving force of the destructive erosion mostly comes from the continuous sediment transport by NE direction wave. The annual sediment loss isabout 20 thousand cubic meters under normal weather conditions. The sediment loss is 12 thousand cubic metersunder 10 years frequency wave for 24 hours at extreme high water level,and the annual loss will be 77 thousand cubic meters. After the construction of the protection engineering according to the optimized scheme, the annual losswill be 64 thousand cubic meters, which accounts for 6% of the total sediments, and the sediment transports fromeast bay to west bay under storm surge effect. Then the goal of the optimization is achieved.
出处
《水道港口》
2015年第6期467-473,共7页
Journal of Waterway and Harbor
