淤泥质海岸年输沙量的估算方法及其在海岸工程中的应用

有潮海淤泥质海岸的沿岸泥沙年输沙量目前尚无比较成熟的计算方法。本文提出了一个利用实测波浪资料和短期水文测验资料来估算年输沙量的方法。计算结果用地形法所得结果来进行验证,验证结果表明此沽算方法是可用的,并可以在海岸工程中应用。应用此估算方法除了可以计算出某海域的年净输沙量及其输沙方向外,还可以计算出经过各水文断面的涨、落潮年总输沙量和输沙方向,并可对海岸工程的效益作出估计。     

丁坝群和顺岸坝组合工程促淤效果的研究——对浙江瑞安丁山促淤工程的分析

本文以浙江瑞安丁山促淤工程为例,分析了建造在淤泥质海岸上,具有不同坝距的丁坝群和顺岸坝组合工程的促淤效果。从工程坝田内滩面的淤积形态、淤积规律和回淤率三方面来讨论上述问题。在此基础上提出了兴建此类工程的总体布置原则和选择合理结构的意见。     

INVESTIGATION ON THE EFFECT OF ACCELERATING SILT ACCUMULATION OF THE COMPOSITE PROJECT OF GROIN SYSTEM AND DETACHED DYKEANALYSIS OF THE DDSGSHAN ACCELERATING BEACH ACCRETION PROJECT IN RUIAN,ZHEJIANG PROVINCE

In this paper the effect of accelerating silt accumulation of the composite project of groin system with different spacings and detached dyke constructed on the silt coast is analysed, taking Dingshan accelerating beach accretion project in Ruian County of Zhejiang Province as an example. The above-mentioned is discussed from the aspects of deposit pattern of the beach surface, rule of deposition and deposition rate within the groin basins. On the basis of these analysed results, the principle of overall layout for constructing this kind of project and the proposals for selecting the rational structures are presented.