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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.
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 analyzed, taking Dingshan accelerating beach accretion project in Ruian County of Zhejiang Province as an example. 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 proposals for selecting the rational Structures are presented.