摘要
粉沙质海岸泥沙活跃,易起易沉,易发生骤淤,曾一度被视为建港"禁区",并成为泥沙研究的"盲区"。文章在调查研究的基础上,对粉沙质海岸建港中的泥沙问题进行了分析,论述了粉沙质海岸港口的回淤及海床冲刷问题,提出了在粉沙质海岸建港中防冲淤措施及有待研究的问题。
Sand on silty beaches moves actively. The threshold velocity is small and the settling velocity is large, and rapid siltation often occurs.Such beaches were once regarded as the forbidden zones for building ports and little research was made of this type of beaches. Based on recent researches and investigations, sediment problems in building ports and harbours on silty beaches are analyzed. The paper further elaborates the back silting problem and the seabed erosion problem in harbours built on silty beaches and the measures to be taken against back siltation and erosion as well as issues to be further investigated.
出处
《中国港湾建设》
北大核心
2004年第3期24-27,共4页
China Harbour Engineering
基金
华东师范大学河口海岸国家重点试验室访问学者专题基金项目(00-1-3)
关键词
粉沙质海岸
泥沙运移型态
淤积计算
推悬比
海床冲刷
silty beaches
sediment transport model
siltation computation
bed-suspension ratio
bed erosion
