Statistics-based method for determination of drag coefficient for nonlinear porous flow in calcareous sand soil

doi:10.1007/s10064-018-1330-6

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Statistics-based method for determination of drag coefficient for nonlinear porous flow in calcareous sand soil
	Ye, Jianhong ; Zhang, Zaohui ; Shan, Jipeng
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2019
卷号	78 期号:5 页码:3663-3670
关键词	South China Sea Calcareous sand soil Nonlinear porous flow Forchheimer drag coefficient Statistical theory Coral reef
ISSN号	1435-9529
DOI	10.1007/s10064-018-1330-6
英文摘要	Generally, drag force applied by soil particles to seeping pore water is described as a type of body force in the form of hydraulic gradient I. For steady porous flow, the hydraulic gradient was widely formulated by the Forchheimer equation, containing two Forchheimer drag coefficients a and b. In this study, a simple and novel experimental device is designated to study the seepage characteristics of pore water in soils. Taking the calcareous sand soil coming from the South China Sea (SCS) as a typical porous medium, three parallel tests of seepage flow are performed. Based on the experimental data of apparent speed u of pore water and corresponding hydraulic gradient I, a statistic-based methodology is proposed to determine drag coefficients a, b of SCS calcareous sand soil. The priority of the proposed methodology is that the statistic distribution of measured parameters can be clearly observed through a small number of tests. Comparative study shows that the drag coefficient a and b of SCS calcareous sand soil determined by the statistic-based method proposed in this study can perfectly describe the corresponding experimental data of u-I relationship. It is indicated that the proposed statistics-based methodology to determine drag coefficient of soil is reliable and feasible.
WOS研究方向	Engineering ; Geology
语种	英语
WOS记录号	WOS:000471237400043
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14957]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China; 2.Wuhan Univ Technol, Wuhan 430070, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Ye, Jianhong,Zhang, Zaohui,Shan, Jipeng. Statistics-based method for determination of drag coefficient for nonlinear porous flow in calcareous sand soil[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(5):3663-3670.
APA	Ye, Jianhong,Zhang, Zaohui,&Shan, Jipeng.(2019).Statistics-based method for determination of drag coefficient for nonlinear porous flow in calcareous sand soil.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(5),3663-3670.
MLA	Ye, Jianhong,et al."Statistics-based method for determination of drag coefficient for nonlinear porous flow in calcareous sand soil".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.5(2019):3663-3670.