An evaluation method for internal erosion potential of gravelly soil based on particle size distribution | |
Zhu, Qin2,3; Su, Li-jun1,2,3; Liu, Zhen-yu2,3; Wang, Bin2,3 | |
刊名 | JOURNAL OF MOUNTAIN SCIENCE |
2022-04-01 | |
卷号 | 19期号:4页码:1203-1214 |
关键词 | Internal erosion Gravelly soil Evaluation method Particle size distribution Coarse particle content |
ISSN号 | 1672-6316 |
DOI | 10.1007/s11629-021-7115-6 |
英文摘要 | Internal erosion occurs when fine particles escape from the soil driven by seepage flow, which is considered to be the crucial factor causing the failure of earth structures filled with gravelly soil. The objective of this paper is to suggest an appropriate method to assess internal erosion potential of gravelly soil. By analyzing the sensitivity of soil material to internal erosion, the variable (D-c15/d(f85))(max) and the content of coarse particles (P-c) are selected as the evaluation indexes (D-c15 and d(f85) are the diameters of 15% mass passing in the coarse component and 85% mass passing in the fine component, respectively). A series of gravelly soils with different particle size distributions are tested for internal erosion by the self-made permeameter. Based on the test results, an evaluation method for the internal erosion of gravelly soil is proposed. Gravelly soil is prone to internal erosion when 60% <= P-c < 95% and (D-c15/d(f85))(max) > 9.5. The proposed method shows good accuracy in evaluating the internal erosion of 36 soil samples from other studies, which confirms the reliability of the method. The proposed method makes it possible to accurately assess internal erosion of gravelly soil, and an alternative method is provided for engineers to determine whether there is a risk of internal erosion in earth structures consisting of gravelly soil. |
资助项目 | National Natural Science Foundation of China[41790432] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20030301] |
WOS关键词 | GAP-GRADED SOILS ; SUFFUSION ; STABILITY ; SEEPAGE ; FILTERS ; CRITERIA ; DAMS |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | SCIENCE PRESS |
WOS记录号 | WOS:000783541800020 |
资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/56543] |
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 | Su, Li-jun |
作者单位 | 1.China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu, Qin,Su, Li-jun,Liu, Zhen-yu,et al. An evaluation method for internal erosion potential of gravelly soil based on particle size distribution[J]. JOURNAL OF MOUNTAIN SCIENCE,2022,19(4):1203-1214. |
APA | Zhu, Qin,Su, Li-jun,Liu, Zhen-yu,&Wang, Bin.(2022).An evaluation method for internal erosion potential of gravelly soil based on particle size distribution.JOURNAL OF MOUNTAIN SCIENCE,19(4),1203-1214. |
MLA | Zhu, Qin,et al."An evaluation method for internal erosion potential of gravelly soil based on particle size distribution".JOURNAL OF MOUNTAIN SCIENCE 19.4(2022):1203-1214. |
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