Exploring the Occurrence of Clogging in Highly Permeable Coarse Soils of Dam Foundations
Leakage through the permeable coarse soils of dam foundations in Tibet, China, lessened over time without any additional antiseepage measures. In fact, clogging generated during the infiltration process is recognized as the major factor in reducing leakage. A laboratory study was conducted to unders...
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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/10.1155/2020/8868052 |
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| author | Jianquan Ma Hao Peng Shibo Li Zhao Duan Xinshe Zhang Donghe Ma |
| author_facet | Jianquan Ma Hao Peng Shibo Li Zhao Duan Xinshe Zhang Donghe Ma |
| author_sort | Jianquan Ma |
| collection | DOAJ |
| description | Leakage through the permeable coarse soils of dam foundations in Tibet, China, lessened over time without any additional antiseepage measures. In fact, clogging generated during the infiltration process is recognized as the major factor in reducing leakage. A laboratory study was conducted to understand clogging in highly permeable coarse soil of a dam foundation with the primary aim of determining the clogging patterns and optimum clogging particle size (PS). Seven replicate experiments were constructed using soil media with PS ranges of 32–64 mm, 16–32 mm, 8–16 mm, 4–8 mm, 2–4 mm, 1-2 mm, and 0.5–1 mm to observe clogging after feeding the soil media with sediments of different PSs. The experimental results showed that four clogging patterns were formed in different PSs of the coarse foundation soil. The ratio of the effective aperture of the soil Dea and the equivalent clogging particle size dede/Dea had a dominant effect on the four clogging patterns (surface clogging, de/Dea>1; surface-internal clogging, 0.5<de/Dea≤1; internal partial pore blockage, 0.25<de/Dea≤0.5; and unclogging, de/Dea≤0.25). The assessment criterion of the optimum clogging pattern was determined by 0.5<de/Dea≤1, and from that, the optimum clogging PS do was calculated. |
| format | Article |
| id | doaj-art-025746678c034c12a5dc6c63891ae0e9 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-025746678c034c12a5dc6c63891ae0e92025-02-03T01:24:57ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88680528868052Exploring the Occurrence of Clogging in Highly Permeable Coarse Soils of Dam FoundationsJianquan Ma0Hao Peng1Shibo Li2Zhao Duan3Xinshe Zhang4Donghe Ma5College of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaXi’an Center of Geological Survey, China Geological Survey, 710054 Xi’an, ChinaChina Water Northeastern Investigation, Design & Research Co., Ltd., Changchun 130021, ChinaLeakage through the permeable coarse soils of dam foundations in Tibet, China, lessened over time without any additional antiseepage measures. In fact, clogging generated during the infiltration process is recognized as the major factor in reducing leakage. A laboratory study was conducted to understand clogging in highly permeable coarse soil of a dam foundation with the primary aim of determining the clogging patterns and optimum clogging particle size (PS). Seven replicate experiments were constructed using soil media with PS ranges of 32–64 mm, 16–32 mm, 8–16 mm, 4–8 mm, 2–4 mm, 1-2 mm, and 0.5–1 mm to observe clogging after feeding the soil media with sediments of different PSs. The experimental results showed that four clogging patterns were formed in different PSs of the coarse foundation soil. The ratio of the effective aperture of the soil Dea and the equivalent clogging particle size dede/Dea had a dominant effect on the four clogging patterns (surface clogging, de/Dea>1; surface-internal clogging, 0.5<de/Dea≤1; internal partial pore blockage, 0.25<de/Dea≤0.5; and unclogging, de/Dea≤0.25). The assessment criterion of the optimum clogging pattern was determined by 0.5<de/Dea≤1, and from that, the optimum clogging PS do was calculated.http://dx.doi.org/10.1155/2020/8868052 |
| spellingShingle | Jianquan Ma Hao Peng Shibo Li Zhao Duan Xinshe Zhang Donghe Ma Exploring the Occurrence of Clogging in Highly Permeable Coarse Soils of Dam Foundations Advances in Civil Engineering |
| title | Exploring the Occurrence of Clogging in Highly Permeable Coarse Soils of Dam Foundations |
| title_full | Exploring the Occurrence of Clogging in Highly Permeable Coarse Soils of Dam Foundations |
| title_fullStr | Exploring the Occurrence of Clogging in Highly Permeable Coarse Soils of Dam Foundations |
| title_full_unstemmed | Exploring the Occurrence of Clogging in Highly Permeable Coarse Soils of Dam Foundations |
| title_short | Exploring the Occurrence of Clogging in Highly Permeable Coarse Soils of Dam Foundations |
| title_sort | exploring the occurrence of clogging in highly permeable coarse soils of dam foundations |
| url | http://dx.doi.org/10.1155/2020/8868052 |
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