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Direct determination of rheological characteristics of debris flow - Discussion
Yu, B(余斌); Zhao, HL(赵惠林)
Corresponding AuthorYu, B(余斌)
2000
Source PublicationJournal of Hydraulic Engineering
ISSN0733-9429
Volume126Issue:2Pages:158–159
AbstractTo predict debris flow characteristics it is necessary to determine the rheological properties of these mixtures. It is suggested that such a mixture can be obtained by adding successively to clear water, coarser particles derived from a sample of the debris flow material. At each addition different suspensions are obtained that can be considered as progressively coarser interstitial fluids of the complete mixture. These suspensions are easier to test and their rheological properties can thus be determined. The behavior of the complete material can then be inferred from these results. This procedure has been adopted for a debris flow which occurred on Moscardo Torrent (Friuli Region, northeastern Italy) in 1995. A wide range of rheometrical techniques have been used to determine the rheological characteristics, such as laboratory rheometer, inclined plane test, large-scale rheometer, and field tests. The rheological parameters and behavior type of the complete material have been inferred from the yield stress-solid fraction curve and from the flow curve evolution. The behavior has been found to be mainly viscoplastic and representable by a Herschel-Bulkley model.
KeywordDebris Flow Patterns Granular Media Rheology Suspension
DOIhttp://dx.doi.org/10.1061/(ASCE)0733-9429(2000)126:2(158)
Indexed BySCI
Language英语
WOS IDWOS:000085025400007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5416
Collection成都山地所知识仓储(2009年以前)
AffiliationChinese Acad Sci, Chengdu Inst Mt Disaster & Environm, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Yu, B,Zhao, HL. Direct determination of rheological characteristics of debris flow - Discussion[J]. Journal of Hydraulic Engineering,2000,126(2):158–159.
APA Yu, B,&Zhao, HL.(2000).Direct determination of rheological characteristics of debris flow - Discussion.Journal of Hydraulic Engineering,126(2),158–159.
MLA Yu, B,et al."Direct determination of rheological characteristics of debris flow - Discussion".Journal of Hydraulic Engineering 126.2(2000):158–159.
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