| ADVANCES IN MEASURING TECHNIQUES OF BED LOAD |
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| 引用本文： | ZHOU Gangyan ZOU Jiazhong (1 The English text is edited and altered by Mr. Long Yuqian. 2 Senior engineer,Hydrology Bureau,Changjiang Water Resources Comm.,Wuhan 430010,P. R. China. 3 Senior engineer (High grade),Hydrology Bureau,Changjiang Water Re. ADVANCES IN MEASURING TECHNIQUES OF BED LOAD[J]. 国际泥沙研究, 1997, 0(1) |
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| 作者姓名： | ZHOU Gangyan ZOU Jiazhong (1 The English text is edited and altered by Mr. Long Yuqian. 2 Senior engineer Hydrology Bureau Changjiang Water Resources Comm. Wuhan 430010 P. R. China. 3 Senior engineer (High grade) Hydrology Bureau Changjiang Water Re |
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| 作者单位： | ZHOU Gangyan ZOU Jiazhong (1 The English text is edited and altered by Mr. Long Yuqian. 2 Senior engineer，Hydrology Bureau，Changjiang Water Resources Comm.，Wuhan 430010，P. R. China. 3 Senior engineer (High grade |
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| 摘 要： | I.m~UCrIONBedloadisthesedimentwhichmovesalongtheriverbedintheformofrolling,slidingandsaltation.BedloadmaycreatemanyproblemsintheoperationandmaintenanceofnavigationchannelandinthedevelOPmentofhydroelectricity.Dataofbedloaddischargearealsorequiredinthedesignofreservoir,inwhichtheinflowbedloadareallactuallytrapped.Thewaysofbedloadmotionaredifferentfordifferentsizes.Thus,itisextremelydifficulttodeterminethebedloaddischargeaccurately.Manyequationshavebeenproposedtocalculatethebedloaddischarge.H…
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ADVANCES IN MEASURING TECHNIQUES OF BED LOAD |
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| ZHOU Gangyan ZOU Jiazhong. ADVANCES IN MEASURING TECHNIQUES OF BED LOAD[J]. International Journal of Sediment Research, 1997, 0(1) |
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| Authors: | ZHOU Gangyan ZOU Jiazhong |
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| Abstract: | Bed load is an important component of total load transportation. The accuracy of bed load measurement depends on the measuring equipment and sampling method. In this paper, the present situation of bed load measurement is introduced, the structure features and the sampling performance of bed lead samplers currently used in the world is evaluated. Results of field comparison of HS and TR2 type samplers used in USA, Don type sampler used in former USSR, and Chinese made Y78-1, Y80, AWT160, MB2 samplers have been summarized. From statistical point of view, selection of sampling verticals, and duration and number of repetitions in a vertical in the bed load measurement were studied. The error might be minimized if the sampling verticals were selected on the basis of equal partial bed load discharge. Finally, some data processing methods are recommended, which have been applied to the Changjiang River. |
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| Keywords: | Bed load measurement Sampling efficiency Measuring error Sediment discharge Transport rate |
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