利用间接测量法监测沙区悬沙的研究进展

Péter Tóth
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引用次数: 0

摘要

Tisza河在1998年至2010年间经历了连续的洪水高峰。洪水高度升高的原因是多方面的,其中一个原因是堤岸漫滩堆积。本研究的目的是应用和测试一种替代泥沙测量方法来评估匈牙利Tisza河的泥沙输送。新方法可以帮助从业者更好地理解河流的过程。目前泥沙测量实践的一个重大问题是,它没有考虑或只是在有限的程度上考虑河流的水文条件。本文对设在索尔诺克的中沙河浊度测量站所测得的数据进行了评价,以确定该测量方法是否适用于中沙河高度变化的输沙条件。在测量活动中,基于浊度测量探头的连续数据,建立了近岸浊度与悬浮沉积物浓度之间的密切关系。根据近岸浑浊度计算出的悬沙浓度与几次断面测量得到的悬沙产量结果进行了比较。结果令人鼓舞;尽管测量次数有限,但参数之间的关系很密切。为了使该方法更加精确,还需要额外的一系列测量,这些测量也包括高水位范围。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of Suspended Sediment Monitoring of the Tisza Using an Indirect Measurement Method
The Tisza River experienced successive flood peaks between 1998 and 2010. The reasons of the increased flood height are various, one of them is overbank floodplain accumulation. The aim of the present study is to apply and test an alternative sediment measurement method to evaluate the sediment transport of the Tisza River, Hungary. The new method could help practitioners to better understand the fluvial processes. A significant problem with the current sediment measurement practice is that it does not consider or just to a limited extent, the hydrological conditions of a river. The data measured at the turbidity measuring station installed in the Middle Tisza at Szolnok are evaluated to determine whether or not this measurement procedure can be applied for the highly various sediment transport conditions of the Tisza. In measurement campaigns and based on continuous data from the turbidity measuring probe, a close relationship between near-bank turbidity and suspended sediment concentration was established. The suspended sediment concentrations calculated from the near-bank turbidity were compared with the results of suspended sediment yield from a few cross-section measurements. The results are encouraging; despite the limited number of measurements, the relationship between the parameters is close. In order to make the method more precise, additional series of measurements are needed, which also cover the high water range.
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