Impact of submarine debris flow on offshore piles

被引：0

作者：

Li D.-L. ^{[1
,2
]}

Yan E.-C. ^{[1
]}

Feng B. ^{[3
]}

Cai Y.-Q. ^{[3
]}

机构：

[1] Faculty of Engineering, China University of Geosciences, Wuhan

[2] China Railway Siyuan Survey and Design Group Co. LTD, Wuhan

[3] Department of Architecture Engineering, Zhejiang University of Technology, Hangzhou

来源：

Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2019年 / 53卷 / 12期

关键词：

H-B model; Impact; Non-Newtonian fluids; Pile; Power rate model; Submarine debris flow;

D O I：

10.3785/j.issn.1008-973X.2019.12.011

中图分类号：

学科分类号：

摘要：

Twelve sets of experiments were carried out by changing the slope and mass fraction of kaolin. The rheological properties of debris flow were described by H-B model and power rate model; the modified Reynolds number for non-Newtonian fluids was obtained. According to the theory of fluid mechanics, the relationship between the dimensionless drag coefficient and the Reynolds number of non-Newtonian fluid was established. Results show that the debris flow viscosity varies greatly among different proportions, and the shear dilution characteristics of the debris flow can be described by power-law model or H-B model. The bending moment of pile reaches the largest at the water-soil interface. Because of the soil reaction around the pile, the bending moment of pile decreases along the buried depth. The drag coefficient decreases with the increase of the Reynolds number of non-Newtonian fluids. © 2019, Zhejiang University Press. All right reserved.

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页码：2342 / 2347

页数：5

共 20 条

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