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沿岸输沙率的估算是研究沙质海岸工程泥沙问题的重要环节,目前各家总沿岸输沙率公式的计算结果往往存在较大差异。为评价公式在不同条件下的精度,收集了三组高质量沿岸输沙现场和实验室观测数据,将实测数据和CERC公式、Kamphuis公式、van Rijn公式、《海港水文规范》公式的计算结果进行比较。结果表明van Rijn公式的计算结果与实测值吻合最好,其次为《海港水文规范》公式。CERC公式中系数K在不同条件下的取值有所变化时也能与实测值吻合较好。Kamphuis公式的计算结果与实验室观测数据吻合最好,但对于现场观测数据计算结果则偏小。
The estimation of the sediment transport rate along the coast is an important part of the study on the sediment transport problem of the sandy coast. At present, the calculation results of the sediment discharge rates of various coastal banks tend to be quite different. In order to evaluate the accuracy of the formula under different conditions, three sets of high-quality sediment transport sites and laboratory observations were collected. The measured data and the calculation results of the CERC formula, the Kamphuis formula, the van Rijn formula and the “Harbor Hydrological Specification” formula Compare The result shows that the calculated result of van Rijn formula is in good agreement with the measured value, followed by the formula of “Harbor Hydrological Specification”. In the CERC formula, the coefficient K can also be in good agreement with the measured value under different conditions. The calculation results of Kamphuis formula are in good agreement with the laboratory observation data, but the calculation results of the field observation data are small.