Experimental and Theoretical Explanations for the Initial Difference in the Hydraulic Head in Aquitards
文献类型：期刊论文
| 作者 | Xu, Yongliang1; Du, Chaoyang2; Ma, Haizhi1; Pang, Wei1; Huang, Suhang1; Li, Shimin1 |
| 刊名 | WATER
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 14期号:19页码:16 |
| 关键词 | model test groundwater buoyancy initial head difference initial hydraulic gradient aquitard |
| DOI | 10.3390/w14193042 |
| 通讯作者 | Du, Chaoyang(ducy@igsnrr.ac.cn) |
| 英文摘要 | Accurate estimation of the buoyancy forces exerted on underground structures is a problem in geotechnical engineering that directly impacts the construction safety and cost of these structures. Therefore, studying the buoyancy resistance of underground structures has great scientific and practical value. In this study, an initial difference in the hydraulic head, Delta h(0), was discovered to be present in aquitards through analysis of water-level data collected from the observation of real-world structures and in laboratory control tests. That is, seepage occurs beyond a threshold Delta h(0). Analysis of test data reveals that a deviation from Darcy's law is the theoretical basis for Delta h(0) and that Delta h(0) equals the initial hydraulic gradient multiplied by the length of the seepage path. The general consistency between the experimentally measured and theoretically calculated values of Delta h(0) validates the theoretical explanation for Delta h(0). The results of this study provide a basis for scientifically calculating the buoyancy resistance required for the construction of underground structures. |
| WOS关键词 | BUOYANCY FORCE ; WATER ; SOIL |
| 资助项目 | Open Research Fund Program the Beijing Key Laboratory of Geotechnical Engineering for Deep Foundation Pit of Urban Rail Transit[202103] |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000867358900001 |
| 出版者 | MDPI |
| 资助机构 | Open Research Fund Program the Beijing Key Laboratory of Geotechnical Engineering for Deep Foundation Pit of Urban Rail Transit |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/185789]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Du, Chaoyang |
| 作者单位 | 1.Beijing Urban Construct Explorat & Surveying Desi, Beijing Key Lab Geotech Engn Deep Fdn Pit Urban R, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Yongliang,Du, Chaoyang,Ma, Haizhi,et al. Experimental and Theoretical Explanations for the Initial Difference in the Hydraulic Head in Aquitards[J]. WATER,2022,14(19):16. |
| APA | Xu, Yongliang,Du, Chaoyang,Ma, Haizhi,Pang, Wei,Huang, Suhang,&Li, Shimin.(2022).Experimental and Theoretical Explanations for the Initial Difference in the Hydraulic Head in Aquitards.WATER,14(19),16. |
| MLA | Xu, Yongliang,et al."Experimental and Theoretical Explanations for the Initial Difference in the Hydraulic Head in Aquitards".WATER 14.19(2022):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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