黄骅岸段人工开发对岸滩演变的影响研究

研究区域黄骅岸段内油气资源丰富,其人类活动也日益频繁。人工开发改变了该岸段的水动力环境,进而对岸滩的冲淤演变造成一定的影响。本文先后对该区域的断面测量、粒度测试以及放射性测年等结果进行分析,讨论了黄骅岸段在进海路修建的影响下产生的岸滩冲淤演变的原因和规律,认为其岸滩整体处于动态平衡状态或略冲刷状态,沿海围垦、筑堤造坝等岸边人工设施的修建是改变岸线的主要营力与原因。本文取得的成果为进一步研究该区域泥沙冲淤与岸滩演变问题提供了基础数据和分析参考,对研究渤海西海岸乃至整个中国海岸的岸滩演变都有一定的启示和借鉴作用。

Influence of Artificial Development on Beach Evolution in the Huanghua Coastal Zone

The oil and gas resources are abundant in the Huanghua coastal zone and the human activities are also increasingly frequent.Artificial development has changed the hydrodynamic environment of the study area,and then impacted the scouring and silting evolution of the coastal beach.In this paper,the results from section measurement, particle size measurement and radiometric dating carried out in the study area are ana-lyzed and the reasons and rules of the scouring and silting evolution of the beach under the influence of seaward road construction are discussed.It could be considered that the beach in the study area is,as a whole,in a dynamic equilibrium state or a slightly scou-ring state,and that the constructions of artificial facilities on the shore,such as coastal reclamation,building dams and so on,are the main forces and reasons for the coastline changes.The results of the study not only provide basic data and references for the fur-ther researches on the sediment scouring and silting and the beach evolution in the study area,but also have certain enlightenment and reference for the studies of beach evolu-tion in the western coastal zone of the Bohai Sea and even in the whole coastal areas of China.