Effect of Clay on Internal Erosion of Clay-Sand-Gravel Mixture
In this study, a one-dimensional seepage test apparatus was used to investigate the effect of clay on the critical hydraulic gradient, hydraulic conductivity, migration of fine particles in soil, and percentage of fine particle loss during the internal erosion of clay-sand-gravel mixture, compared w...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8869289 |
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| author | Chen Liang Cai Guo-dong Gu Jia-hui Tan Ye-fei Chen Cheng Yin Zi-xue |
| author_facet | Chen Liang Cai Guo-dong Gu Jia-hui Tan Ye-fei Chen Cheng Yin Zi-xue |
| author_sort | Chen Liang |
| collection | DOAJ |
| description | In this study, a one-dimensional seepage test apparatus was used to investigate the effect of clay on the critical hydraulic gradient, hydraulic conductivity, migration of fine particles in soil, and percentage of fine particle loss during the internal erosion of clay-sand-gravel mixture, compared with clean gravel. The critical hydraulic gradient and fine sand loss percentage of the clay-sand-gravel mixture decreased, and critical flow velocity and the hydraulic conductivity increased. Six clay-sand-gravel mixture samples with different clay contents were used to evaluate the effect of different clay contents on internal erosion. As the percentage of clay mass to fine particle mass increases from 0% to 25%, the critical hydraulic gradient of soil samples decreases by nearly half and the fine sand loss percentage decreases from 13.73% to 3.48%. Overall, clay has a significant effect on the development of internal erosion of clay-sand-gravel mixture. And attention should be paid in engineering project; clay-sand-gravel mixture with a small amount of clay is more likely to be damaged than clean gravel. |
| format | Article |
| id | doaj-art-cc2dcf7bbe3d472fb6ec6b116bc1dc42 |
| institution | DOAJ |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-cc2dcf7bbe3d472fb6ec6b116bc1dc422025-08-20T03:19:32ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88692898869289Effect of Clay on Internal Erosion of Clay-Sand-Gravel MixtureChen Liang0Cai Guo-dong1Gu Jia-hui2Tan Ye-fei3Chen Cheng4Yin Zi-xue5Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaNanjing Hydraulic Research Institute, Nanjing, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaIn this study, a one-dimensional seepage test apparatus was used to investigate the effect of clay on the critical hydraulic gradient, hydraulic conductivity, migration of fine particles in soil, and percentage of fine particle loss during the internal erosion of clay-sand-gravel mixture, compared with clean gravel. The critical hydraulic gradient and fine sand loss percentage of the clay-sand-gravel mixture decreased, and critical flow velocity and the hydraulic conductivity increased. Six clay-sand-gravel mixture samples with different clay contents were used to evaluate the effect of different clay contents on internal erosion. As the percentage of clay mass to fine particle mass increases from 0% to 25%, the critical hydraulic gradient of soil samples decreases by nearly half and the fine sand loss percentage decreases from 13.73% to 3.48%. Overall, clay has a significant effect on the development of internal erosion of clay-sand-gravel mixture. And attention should be paid in engineering project; clay-sand-gravel mixture with a small amount of clay is more likely to be damaged than clean gravel.http://dx.doi.org/10.1155/2020/8869289 |
| spellingShingle | Chen Liang Cai Guo-dong Gu Jia-hui Tan Ye-fei Chen Cheng Yin Zi-xue Effect of Clay on Internal Erosion of Clay-Sand-Gravel Mixture Advances in Civil Engineering |
| title | Effect of Clay on Internal Erosion of Clay-Sand-Gravel Mixture |
| title_full | Effect of Clay on Internal Erosion of Clay-Sand-Gravel Mixture |
| title_fullStr | Effect of Clay on Internal Erosion of Clay-Sand-Gravel Mixture |
| title_full_unstemmed | Effect of Clay on Internal Erosion of Clay-Sand-Gravel Mixture |
| title_short | Effect of Clay on Internal Erosion of Clay-Sand-Gravel Mixture |
| title_sort | effect of clay on internal erosion of clay sand gravel mixture |
| url | http://dx.doi.org/10.1155/2020/8869289 |
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