Sandy bed-load transport

被引：0

作者：

Zhang L. ^{[1
]}

机构：

[1] College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing

来源：

Zhang, Luohao (zlh678@aliyun.com) | 1600年 / International Research and Training Center on Erosion and Sedimentation and China Water and Power Press卷 / 48期

关键词：

Bed layer; Sandy bed-load; Suspended sediment; Transport rate;

D O I：

10.13243/j.cnki.slxb.20160651

中图分类号：

学科分类号：

摘要：

Calculation of bed-load transport is the key for both the research of sandy bed deformation and the engineering application. Based on the review of representative formulae used in China, it is realized that most of the existing bed-load transport formulae are not suitable for sandy riverbed because the accuracy of the measured data cannot be guaranteed. This paper addresses the exchange mechanism of bed-load and suspended sediment at riverbed layer; then recurs to sediment concentration vertical distribution formula extended to the riverbed, considering the impact of sediment particle size, flow intensity and hydraulic friction characteristics on the sandy bed-load transport intensity. Finally, a high reliability sandy bed-load transport rate formula has been derived. It shows that the measured data of natural sandy riverbed agree well with calculation and the formula can be used in the natural engineering calculation. © 2017, China Water Power Press. All right reserved.

引用

页码：467 / 472

页数：5

共 5 条

[1] Meyer-Peter E., Muller R., Formula for Bed Load Transport, Proc., 2nd. Meeting, Intern. Assoc. Hyd. Res., 6, (1948)
[2] Meyer-Peter E., Favre H., Einstein H.A., Neuere versuchsresutate uber den geschiebetrieb, Schweiz. Bauzeitung., 103, 12, pp. 147-150, (1934)
[3] Bagnold R.A., An Approach to the Sediment Transport Problem from General Physics, (1996)
[4] Van Rijn, Sediment transport, Part I: bed load transport, Journal of Hydraulic Engineering, 110, 10, pp. 1431-1456, (1984)
[5] Van Rijn, Sediment transport, Part II: suspended load transport, Journal of Hydraulic Engineering, 110, 11, pp. 1613-1641, (1984)

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