中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Experimental study on the viscoelastic behaviors of debris flow slurry

文献类型:期刊论文

作者Wang Yuyi1,2; Tan Rongzhi1,2; Hu Kaiheng1,2; Chen Feiyue3; Yang Hongjuan1,2; Zhang Jinshan1,2; Lv Juan2
刊名JOURNAL OF MOUNTAIN SCIENCE
出版日期2012-08-01
卷号9期号:4页码:501-510
关键词Loss modulus (G '') Storage modulus (G ') Viscoelastic behaviors Gel state
ISSN号1672-6316
通讯作者Yuyi Wang
合作状况国内
英文摘要The rheological properties of most liquid in nature are between liquids and solids, including both elastic changes and viscosity changes, that is so-called "viscoelastic". Dynamic oscillatory test was used to quantitatively study the distinct viscoelastic behaviors of debris flow slurry in the shear stress conditions for the first time in this study. The debris flow slurry samples were from Jiangjiagou Ravine, Yunnan Province, China. The experimental results were found that at the low and middle stages of shearing, when the angular velocity omega < 72.46 s(-1), the loss modulus (GaEuro(3)) was greater than the storage modulus (G'), i.e. GaEuro(3)> G'. At the late stage of shearing, when the angular velocity omega a parts per thousand 72.46 s(-1), the storage modulus was greater than or equal to the loss modulus, i.e. G' a parts per thousand GaEuro(3), tan delta a parts per thousand broken vertical bar 1 (where phase-shift angle delta=GaEuro(3)/G'), and the debris flow slurry was in a gel state. Therefore, the progress of this experimental study further reveals the mechanism of hyperconcentrated debris flows with a high velocity on low-gradient ravines.
WOS标题词Science & Technology ; Life Sciences & Biomedicine
类目[WOS]Environmental Sciences
研究领域[WOS]Environmental Sciences & Ecology
收录类别SCI
语种英语
WOS记录号WOS:000306732900006
公开日期2013-03-04
源URL[http://192.168.143.20:8080/handle/131551/4970]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2012_Vol9 No.4
作者单位1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Dongchuan Debris Flow Observat & Res Stn, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
3.Anton Paar GmbH, Shanghai Representat Off, Shanghai 200040, Peoples R China
推荐引用方式
GB/T 7714
Wang Yuyi,Tan Rongzhi,Hu Kaiheng,et al. Experimental study on the viscoelastic behaviors of debris flow slurry[J]. JOURNAL OF MOUNTAIN SCIENCE,2012,9(4):501-510.
APA Wang Yuyi.,Tan Rongzhi.,Hu Kaiheng.,Chen Feiyue.,Yang Hongjuan.,...&Lv Juan.(2012).Experimental study on the viscoelastic behaviors of debris flow slurry.JOURNAL OF MOUNTAIN SCIENCE,9(4),501-510.
MLA Wang Yuyi,et al."Experimental study on the viscoelastic behaviors of debris flow slurry".JOURNAL OF MOUNTAIN SCIENCE 9.4(2012):501-510.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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