| 洪水期悬移质日平均输沙率计算方法的分析研究 |
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| 引用本文： | 王卫东,赵志贡,荣晓明.洪水期悬移质日平均输沙率计算方法的分析研究[J].灌溉排水学报,2006,25(2):77-80. |
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| 作者姓名： | 王卫东 赵志贡 荣晓明 |
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| 作者单位： | 黄河水利职业技术学院,河南,开封,475001;河南省开封水文水资源勘测局,河南,开封,475001 |
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| 摘 要： | 《水文资料整编规范》中所给的在流量和含沙量变化较大的情况下的2种悬移质日平均输沙率的计算方法均是近似计算方法,计算成果含有误差,直接影响流域侵蚀、灌区淤积研究和天然河道、灌溉渠道冲淤分析等成果的精度。提出的“积分法”可以消除近似计算方法所带来的误差,得到精确的悬移质日平均输沙率计算结果,解决了长期以来计算方法存在误差的问题,为下次规范的修改制订提供参考。
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| 关 键 词： | 悬移质 含沙量 输沙率 |
| 文章编号： | 1000-646X(2006)02-0077-04 |
| 收稿时间： | 2005-12-09 |
| 修稿时间： | 2005年12月9日 |
Analysis Research on Daily Average Sediment Flux of Suspended Load in High-water Period |
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| WANG Wei-dong,ZHAO Zhi-gong,RONG Xiao-ming.Analysis Research on Daily Average Sediment Flux of Suspended Load in High-water Period[J].Journal of Irrigation and Drainage,2006,25(2):77-80. |
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| Authors: | WANG Wei-dong ZHAO Zhi-gong RONG Xiao-ming |
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| Institution: | 1. Yellow River Conservancy Technical Institute, Kaifeng 475001, China; 2. Kaifeng Hydrology Water Resources Survey Bureau of Henan Province, Kaifeng 475001, China |
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| Abstract: | The two computational methods in are both approximate calculation methods,which are applied in the situation when the current capacity and silt content change greatly.The computation results include errors,and directly affect the research on the basin erosion,the irrigated area silting and silt analysis flushes precision of the natural river course and the irrigation canal."The integration method" can eliminate the errors resulted from the approximate calculation methods and obtain the precise computation of interval sediment discharge.Therefore the question of computational method error is thoroughly worked out,and reliable evidences are provided for the next time standard revision and formulation. |
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| Keywords: | suspended load unit sediment charge cross-section sediment charge sediment charge sediment flux |
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