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首页> 外文会议>International Association of Hydraulic Engineering and Research(IAHR) Congress Theme A: Coastal Environment: Processes and Integrated Management; 20030824-20030829; AUTH; GR >AN INVESTIGATION ON SEDIMENT TRANSPORT ALONG SOUTHERN COAST OF CASPIAN SEA
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AN INVESTIGATION ON SEDIMENT TRANSPORT ALONG SOUTHERN COAST OF CASPIAN SEA

机译：闽南沿海沿岸沉积物迁移研究

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In this paper, using 6 known methods of estimation of alongshore sediment transport including Bijker(1971), C.E.R.C(1984), Kamphuis(1986), Kamphuis(1991), Kraus(1982) and Van der Meer(1990) the alongshore sediment transport rate (ASTR) is predicted for Babolsar shore, located in the south coast of Caspian Sea. The results have shown large amount of discrepancies among the predicted values. In order to investigate the accuracy and validity of empirical methods for estimating ASRT in the south coast of Caspian Sea, a field measurement was conducted to measure the impoundment of sediment behind Babolsar breakwater, which was deposited due to wave action on the beach. Based on this measurement the annual alongshore sediment transport rate for Babolsar Coast was obtained 284193 tons. The results showed that Kamphuis(1986), Bijker, CERC formula with coefficient of 0.77 (recommended by Shore Protection Manual), and Kraus overestimated the transport rates and Kamphuis (1991) and Van der Meer formulae have under-estimated ASTR. However, the method of Van der Meer is more appropriate for Babolsar condition and can be recommended for application to the south coast of Caspian Sea. Also a filed measurement was conducted to measure ASTR using sediment traps in Babolsar coast. The measured values were compared with those calculated from the six selected empirical formulae. The results showed that for this specific state of the sea, the measured transport rates were considerably lower than those predicted by empirical formulae. It was shown that the predicted ASTR by Kamphuis (1991) formula was about 5 times lower than the one predicted by CERC formula and was closer to the measured values.
机译：本文采用了6种已知的近岸泥沙运移估算方法，包括Bijker（1971），CERC（1984），Kamphuis（1986），Kamphuis（1991），Kraus（1982）和Van der Meer（1990）。预测位于里海南海岸的Babolsar海岸的海流速率（ASTR）。结果表明，预测值之间存在大量差异。为了调查估算里海南部海岸ASRT经验方法的准确性和有效性，进行了现场测量，以测量由于波浪作用而在海滩上沉积的Babolsar防波堤后的沉积物的蓄积量。基于此测量，获得了Babolsar海岸的年度近岸沉积物传输速率284193吨。结果表明，Kamphuis（1986），Bijker，系数为0.77的CERC公式（《海岸保护手册》建议）和Kraus高估了运输速度，而Kamphuis（1991）和Van der Meer公式却低估了ASTR。但是，Van der Meer的方法更适合于Babolsar条件，可以推荐用于里海南部海岸。还进行了野外测量，以使用Babolsar海岸的沉积物捕集器测量ASTR。将测量值与从六个选定的经验公式计算得出的值进行比较。结果表明，对于这种特定的海洋状态，测得的传输速率大大低于经验公式所预测的传输速率。结果表明，Kamphuis（1991）公式预测的ASTR值比CERC公式预测的预测值低约5倍，并且更接近测量值。

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