Hydro-mechanical analysis of rainfall-induced fines migration process within unsaturated soils
文献类型:期刊论文
作者 | LEI Xiao-qin; YANG Zong-ji; HE Si-ming; LIU En-long; WONG Henry; LI Xin-po |
刊名 | Journal of Mountain Science |
出版日期 | 2017-12 |
卷号 | 14期号:12页码:2603-2619 |
ISSN号 | 1672-6316 |
关键词 | Rainfall Infiltration Fines Migration Internal Erosion Seepage Deformation Slope Stability |
DOI | 10.1007/s11629-017-4359-2 |
通讯作者 | YANG Zong-ji ; HE Si-ming |
文献子类 | 期刊论文 |
英文摘要 | Seepage-induced fines migration under rainfall infiltration is a main cause leading to shallow failures in loose colluvial slopes. To describe the full process of fines migration within unsaturated soils during rainfall infiltration and the associated hydro-mechanical behaviors, a seepage-erosion-deformation coupled formulation is proposed in this paper. The governing equations proposed are implemented into a finite element code and used to investigate the influences of skeleton deformation on the rainfall infiltration process through unsaturated soil columns. The numerical results were presented in detail for a better understanding of the rainfall-induced fines migration process within unsaturated soils. Further, the obtained results are integrated into an infinite slope model for slope stability analysis. The results show that, the skeleton deformation will affect the rainfall infiltration rate and hence the timing of slope failures; meanwhile their influences are more evident if the fines deposition process is taken into account. Moreover, the slope stability could be reduced gradually due to the soil strength loss along with loss of fine particles. Therefore, particular attentions should be paid to analyzing the stability of soil slopes susceptible to internal erosion. |
语种 | 英语 |
WOS记录号 | WOS:000418074700018 |
源URL | [http://ir.imde.ac.cn/handle/131551/20646] |
专题 | Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.12 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 |
推荐引用方式 GB/T 7714 | LEI Xiao-qin,YANG Zong-ji,HE Si-ming,et al. Hydro-mechanical analysis of rainfall-induced fines migration process within unsaturated soils[J]. Journal of Mountain Science,2017,14(12):2603-2619. |
APA | LEI Xiao-qin,YANG Zong-ji,HE Si-ming,LIU En-long,WONG Henry,&LI Xin-po.(2017).Hydro-mechanical analysis of rainfall-induced fines migration process within unsaturated soils.Journal of Mountain Science,14(12),2603-2619. |
MLA | LEI Xiao-qin,et al."Hydro-mechanical analysis of rainfall-induced fines migration process within unsaturated soils".Journal of Mountain Science 14.12(2017):2603-2619. |
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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