IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2010  > Vol7 No.3
Bed load transport rates during scouring and armoring processes
Yang Fengguang; Liu Xingnian; Cao Shuyou; Huang Er
Corresponding AuthorHuang, E
AbstractDambreak-induced bed scouring may undermine the foundation of bridge piers and other structures, and that destruction can pose a serious threat. Consequently, this paper aims at exploring the mechanisms of scouring and armoring. Firstly, the incipient velocity for nonuniform sediment particles was studied, and a formula was derived based on the angle of repose of nonuniform sediment. The results showed that the mechanism of incipient motion for sand and fine gravel differed from that for coarse gravel and cobbles. Also, comparison between experimental and field data shows that the results from the proposed formula agree well with those observed for all conditions. Secondly, a birth-death, immigration-emigration Markov process was developed to describe the bed load transport rate associated with scouring and armoring. The comparison between experimental data and computed results shows that our model can predict the bed load transport rate, although there may be some limitations, the chief of which is that there are many variables in the model to be determined through experiment. This makes its application in river engineering inconvenient.
KeywordNonuniform Sediment Angle Of Repose Bed Scour Armoring Incipient Velocity Bed Load Transport
Document Type期刊论文
CollectionJournal of Mountain Science_Journal of Mountain Science-2010_Vol7 No.3
Recommended Citation
GB/T 7714
Yang Fengguang,Liu Xingnian,Cao Shuyou,et al. Bed load transport rates during scouring and armoring processes[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(3):215–225.
APA Yang Fengguang,Liu Xingnian,Cao Shuyou,&Huang Er.(2010).Bed load transport rates during scouring and armoring processes.JOURNAL OF MOUNTAIN SCIENCE,7(3),215–225.
MLA Yang Fengguang,et al."Bed load transport rates during scouring and armoring processes".JOURNAL OF MOUNTAIN SCIENCE 7.3(2010):215–225.
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