Evaluation of the internal stability of well-graded silty sand through the long-term seepage test
Abstract Suffusion is the phenomenon responsible for internal erosion, and is the process by which finer soil particles are moved through the constrictions between the larger soil particles by seepage forces. Generally, gap-graded soil is known to be susceptible to suffusion. Meanwhile, suffusion of...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-08-01
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| Series: | International Journal of Geo-Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40703-021-00151-6 |
| _version_ | 1818607261571874816 |
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| author | Hee-Jun Lee In-Hyun Kim Choong-Ki Chung |
| author_facet | Hee-Jun Lee In-Hyun Kim Choong-Ki Chung |
| author_sort | Hee-Jun Lee |
| collection | DOAJ |
| description | Abstract Suffusion is the phenomenon responsible for internal erosion, and is the process by which finer soil particles are moved through the constrictions between the larger soil particles by seepage forces. Generally, gap-graded soil is known to be susceptible to suffusion. Meanwhile, suffusion of well-graded silty sand and the resulting soil behavior are not well understood. Moreover, the previous researches on laboratory suffusion tests focused on the study of the critical hydraulic gradient, which triggers the internal instability of the soils within a short period of time. Therefore, in this study, long-term suffusion tests were conducted on well-graded silty sand under a hydraulic gradient lower than the critical value. As a result, abrupt increases in permeability and amount of soil discharged were observed due to the progressive migration of the soil particles, resulting in suffusion even at a relatively low hydraulic gradient. |
| first_indexed | 2024-12-16T14:23:56Z |
| format | Article |
| id | doaj.art-e399c8b3d972421f82a26f3c35e17349 |
| institution | Directory Open Access Journal |
| issn | 2092-9196 2198-2783 |
| language | English |
| last_indexed | 2024-12-16T14:23:56Z |
| publishDate | 2021-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Geo-Engineering |
| spelling | doaj.art-e399c8b3d972421f82a26f3c35e173492022-12-21T22:28:26ZengSpringerOpenInternational Journal of Geo-Engineering2092-91962198-27832021-08-0112111310.1186/s40703-021-00151-6Evaluation of the internal stability of well-graded silty sand through the long-term seepage testHee-Jun Lee0In-Hyun Kim1Choong-Ki Chung2Department of Civil and Environmental Engineering, Seoul National UniversityDepartment of Civil and Environmental Engineering, Seoul National UniversityDepartment of Civil and Environmental Engineering, Seoul National UniversityAbstract Suffusion is the phenomenon responsible for internal erosion, and is the process by which finer soil particles are moved through the constrictions between the larger soil particles by seepage forces. Generally, gap-graded soil is known to be susceptible to suffusion. Meanwhile, suffusion of well-graded silty sand and the resulting soil behavior are not well understood. Moreover, the previous researches on laboratory suffusion tests focused on the study of the critical hydraulic gradient, which triggers the internal instability of the soils within a short period of time. Therefore, in this study, long-term suffusion tests were conducted on well-graded silty sand under a hydraulic gradient lower than the critical value. As a result, abrupt increases in permeability and amount of soil discharged were observed due to the progressive migration of the soil particles, resulting in suffusion even at a relatively low hydraulic gradient.https://doi.org/10.1186/s40703-021-00151-6Internal erosionInternal instabilitySuffusionWell-graded silty sand |
| spellingShingle | Hee-Jun Lee In-Hyun Kim Choong-Ki Chung Evaluation of the internal stability of well-graded silty sand through the long-term seepage test International Journal of Geo-Engineering Internal erosion Internal instability Suffusion Well-graded silty sand |
| title | Evaluation of the internal stability of well-graded silty sand through the long-term seepage test |
| title_full | Evaluation of the internal stability of well-graded silty sand through the long-term seepage test |
| title_fullStr | Evaluation of the internal stability of well-graded silty sand through the long-term seepage test |
| title_full_unstemmed | Evaluation of the internal stability of well-graded silty sand through the long-term seepage test |
| title_short | Evaluation of the internal stability of well-graded silty sand through the long-term seepage test |
| title_sort | evaluation of the internal stability of well graded silty sand through the long term seepage test |
| topic | Internal erosion Internal instability Suffusion Well-graded silty sand |
| url | https://doi.org/10.1186/s40703-021-00151-6 |
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