IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2015  > Vol12 No.5
Comparison of rheometric devices for measuring the rheological parameters of debris flow slurry
Yang Hong-juan1; Wei Fang-qiang2; Hu Kai-heng2; Zhou Gong-dan2; Lyu Juan2
Corresponding AuthorWEI Fang-qiang
2015
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume12Issue:5Pages:1125-1134
SubtypeArticle
AbstractSoil samples with clay content ranging from 15% to 31%, were taken from three debris flow gullies in Southwest China. Three debris flow slurry samples were prepared and tested with four measuring systems of an Anton Paar Physica MCR301 rheometer, including the concentric cylinder system, the parallel-plate system, the vane geometry, and the ball measuring system. All systems were smoothwalled. Flow curves were plotted and yield stress was determined using the Herschel-Bulkley model, showing differences among the different systems. Flow curves from the concentric cylinder and parallelplate systems involved two distinct regions, the low shear and the high shear regions. Yield stresses determined by data fitting in the low shear region were significantly lower than the values from the inclined channel test which is a practical method for determining yield stress. Flow curves in the high shear region are close to those from the vane geometry and the ball measuring system. The fitted values of yield stress are comparable to the values from the inclined channel test. The differences are caused by wall-slip effects in the low shear region. Vane geometry can capture the stress overshoot phenomenon caused by the destruction of slurry structure, whereas end effects should be considered in the determination of yield stress. The ball measuring system can give reasonable results, and it is applicable for rheological testing of debris flow slurries.
KeywordDebris Flow Slurry Rheometer Concentric Cylinder System Parallel Plate System Vane Ball Measuring System
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-015-3543-5
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordYIELD-STRESS ; PARTICLE SUSPENSIONS ; INVERSE PROBLEM ; VISCOMETERS
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000362582200006
Funding OrganizationKey Research Program of the Chinese Academy of Sciences (CAS)(KZZD-EW-05-01) ; Youth Talent Team Program of Institute of Mountain Hazards and Environment, CAS(SDSQB-2013-01) ; National Natural Science Foundation of China(41201011)
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10882
CollectionJournal of Mountain Science_Journal of Mountain Science-2015_Vol12 No.5
山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Yang Hong-juan,Wei Fang-qiang,Hu Kai-heng,et al. Comparison of rheometric devices for measuring the rheological parameters of debris flow slurry[J]. JOURNAL OF MOUNTAIN SCIENCE,2015,12(5):1125-1134.
APA Yang Hong-juan,Wei Fang-qiang,Hu Kai-heng,Zhou Gong-dan,&Lyu Juan.(2015).Comparison of rheometric devices for measuring the rheological parameters of debris flow slurry.JOURNAL OF MOUNTAIN SCIENCE,12(5),1125-1134.
MLA Yang Hong-juan,et al."Comparison of rheometric devices for measuring the rheological parameters of debris flow slurry".JOURNAL OF MOUNTAIN SCIENCE 12.5(2015):1125-1134.
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