Numerical investigation of rainfall-induced fines migration and its influences on slope stability
文献类型：期刊论文
| 作者 | Lei, Xiaoqin1,2,3 ; Yang, Zongji1; He, Siming1,3; Liu, Enlong2; Wong, Henry4; Li, Xinpo1
|
| 刊名 | ACTA GEOTECHNICA
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 12期号:6页码:1431-1446 |
| 关键词 | Clogging Fines migration Rainfall infiltration Slope stability Suffusion Unsaturated soil |
| ISSN号 | 1861-1125 |
| DOI | 10.1007/s11440-017-0600-y |
| 英文摘要 | Rainfall-infiltration-induced fines migration within soil slopes may alter the local porosity and hydraulic properties of soils, and is known to be a possible cause of the failure of slopes. To investigate the intrinsic mechanisms, a mathematical formulation capable of capturing the main features of the coupled unsaturated seepage and fines migration process has been presented. Within the formulation, an unsaturated erodible soil is treated as a three-phase multi-species porous medium based on mixture theory; mass conservation equations with mass exchange terms together with the rate equations controlling fines erosion and deposition processes are formulated as the governing equations and are solved by the FEM method. The influences of both the fines detachment and deposition on the stability of slopes under rainfall infiltration have been investigated numerically. The results show that depending on whether the fines move out or get captured at pore constrictions, both desired and undesired consequences may arise out of the fines migration phenomenon. It is suggested that more attention should be paid to those slopes susceptible to internal erosion whose safety analysis cannot be predicted by traditional methods. |
| 语种 | 英语 |
| WOS记录号 | WOS:000416212800016 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://ir.imde.ac.cn/handle/131551/19181]  |
| 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 |
| 通讯作者 | Yang, Zongji; He, Siming |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China 2.Sichuan Univ, Coll Water Resource & Hydropower, Chengdu 610041, Sichuan, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Univ Lyon, Lab Genie Civil & Batiment, Ecole Natl Travaux Publ Etat, F-69120 Vaulx En Velin, France |
| 推荐引用方式 GB/T 7714 | Lei, Xiaoqin,Yang, Zongji,He, Siming,et al. Numerical investigation of rainfall-induced fines migration and its influences on slope stability[J]. ACTA GEOTECHNICA,2017,12(6):1431-1446. |
| APA | Lei, Xiaoqin,Yang, Zongji,He, Siming,Liu, Enlong,Wong, Henry,&Li, Xinpo.(2017).Numerical investigation of rainfall-induced fines migration and its influences on slope stability.ACTA GEOTECHNICA,12(6),1431-1446. |
| MLA | Lei, Xiaoqin,et al."Numerical investigation of rainfall-induced fines migration and its influences on slope stability".ACTA GEOTECHNICA 12.6(2017):1431-1446. |
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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