| 三峡水库入库泥沙实时监测试验研究 |
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| 引用本文： | 周波,许全喜,李雨.三峡水库入库泥沙实时监测试验研究[J].水文,2016,36(4):53-57. |
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| 作者姓名： | 周波 许全喜 李雨 |
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| 作者单位： | 水利部长江水利委员会水文局 |
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| 摘 要： | 入库泥沙实时监测是三峡水库科学调度的重要基础。长江委水文局以比浊法浊度仪为主要研究对象,对三峡入库悬移质泥沙进行了1 500余次比测试验。并考虑不同水力和泥沙因子对含沙量的影响,提出了浊度与含沙量非线性回归模型及精度指标。研究表明,比浊法浊度仪施测浊度具有时效性强、性能稳定、自动化程度高等特点,计算含沙量过程与传统方法得到的含沙量变化过程一致,沙峰含沙量、次洪输沙量推算误差均能满足三峡水库科学调度的需要,可为三峡水库科学调度提供技术支撑。
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| 关 键 词： | 三峡水库 悬移质泥沙含沙量 实时监测 比测试验 浊度 精度评价 |
| 收稿时间： | 2015/2/8 0:00:00 |
On New Technology of Sediment Real-time Monitoring in Three Gorges Reservoir |
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| ZHOU Bo,XU Quanxi,LI Yu.On New Technology of Sediment Real-time Monitoring in Three Gorges Reservoir[J].Hydrology,2016,36(4):53-57. |
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| Authors: | ZHOU Bo XU Quanxi LI Yu |
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| Institution: | ZHOU Bo;XU Quanxi;LI Yu;Bureau of Hydrology,Changjiang Water Resources Commission; |
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| Abstract: | Real-time monitoring of suspended sediment concentration is an important foundation for the scientific scheduling of the Three Gorges Reservoir. More than 1,500 times comparative tests between the traditional equipment and nephelometry turbidimeter have been conducted by the Bureau of Hydrology, Changjiang Water Resources Commission. The non -linear regression models for the conversion between turbidity and suspended sediment concentration (Hereinafter referred to as SSC) and the accuracy assessment system have been proposed in this study. The results show that the proposed non-linear regression models have a number of special features such as time-sensitive, stable performance and high automatism. Furthermore, the change processes of the SSC values calculated by the proposed models are very similar with the traditional method. The calculated values of the peak SSC or sediment runoff of one flood process have high accuracy, which can provide the technical support for the scientific scheduling of the Three Gorges Reservoir. |
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| Keywords: | Three Gorges Reservoir suspended sediment concentration real-time monitoring comparative test turbidity accuracy assessment |
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