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Experimental study on the thixotropy of viscous debris flows
Language英语
Tian, B1,2,3,4; Wang, YY1,2
2007
Source PublicationDEBRIS-FLOW HAZARDS MITIGATION: MECHANICS, PREDICTION, AND ASSESSMENT
Author of SourceChen, CL ; Major, JJ
Pages111-117
meeting4th International Conference on Debris-Flow Hazards Mitigation - Mechanics, Prediction, and Assessment
Conference DateSEP 10-13, 2007
Conference PlaceChengdu
CountryPEOPLES R CHINA
Publication PlaceROTTERDAM
PublisherMILLPRESS SCIENCE PUBLISHERS
Contribution Rank1
AbstractThe rheological characteristics of natural viscous debris-flows with gravels were measured by using a self-designed plate-ring rheometer. The experimental results show that normal stress and sliding friction play a major role in action between grains in the sheared slurries in the initial regime at low shear rate (du/dy < 10 s(-1)). The stress constitutive relation is described by a power formula with a negative exponent that implies the material is shear thinning. The stress-strain relationship displayed hysteresis. The thixotropic constitutive relation for debris-flows was disclosed by calculating thixotropy energy and the comparison between thixotropy energy and movement factors.
Keyworddebris-flow slurry power formula thixotropy energy thixotropy constitutive relation
ISBN978-90-5966-059-5
Indexed ByEI ; CPCI
Accession numberAccession number:20085211816241
WOS IDWOS:000267333300012
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33491
Collection成都山地所知识仓储(2009年以前)
Corresponding AuthorTian, B
Affiliation1.Key Laboratory of Mountain Surface Process and Hazards, CAS, Chengdu, China;
2.Institute of Mountain Hazards and Enviroment, CAS,Chengdu, China;
3.Graduate University of CAS, Beijing, China;
4.College of Resources & Environment Science, Heibei Normal University, Shijiazhuang, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding 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
Tian, B,Wang, YY. Experimental study on the thixotropy of viscous debris flows[C]//Chen, CL, Major, JJ. ROTTERDAM:MILLPRESS SCIENCE PUBLISHERS,2007:111-117.
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