Statistics-based method for determination of drag coefficient for nonlinear porous flow in calcareous sand soil
文献类型：期刊论文
| 作者 | Ye, Jianhong; Zhang, Zaohui; Shan, Jipeng |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 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 |
| 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 国家重点实验室知识产出_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. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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