Study on the Effect of Low-Temperature Anode Filled with FeCl<sub>3</sub> Solution on Electro-Osmotic Reinforcement of Soft Clay
In order to study the effect of FeCl<sub>3</sub> solution on the current, soil pH value, drainage volume, anode potential difference, energy consumption, and resistivity of electro-osmosis consolidation of soft clay with different moisture contents under a low temperature environment, we...
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MDPI AG
2022-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/5/2517 |
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| author | Pengfei Xiang Yunliang Cui Gang Wei |
| author_facet | Pengfei Xiang Yunliang Cui Gang Wei |
| author_sort | Pengfei Xiang |
| collection | DOAJ |
| description | In order to study the effect of FeCl<sub>3</sub> solution on the current, soil pH value, drainage volume, anode potential difference, energy consumption, and resistivity of electro-osmosis consolidation of soft clay with different moisture contents under a low temperature environment, we carried out 31 sets of model tests under different working conditions by using a self-made device and an improved Miller Soil Box. The test results showed that, under the same conditions, although the energy consumption coefficient of electro-osmosis had little change in the low temperature environment, the current, displacement, and electro-osmosis coefficient were obviously reduced, and the resistivity and anode potential difference was greatly increased, indicating that the low temperature environment reduces the efficiency of electro-osmosis of soft clay. After the anode was filled with FeCl<sub>3</sub> solution, the current, water displacement, and electro-osmotic coefficient were clearly increased; the anode potential difference and electro-osmotic energy consumption coefficient were clearly decreased; and the resistivity was reduced to a certain extent, which indicates that the anode filled with FeCl<sub>3</sub> solution is very beneficial in improving electro-osmotic efficiency and in saving energy. The electro-osmotic discharge after the anode filled with FeCl<sub>3</sub> solution at low temperature was clearly higher than that after the anode was filled water at normal temperature, indicating that the effect of the anode filled with FeCl<sub>3</sub> solution on electro-osmosis is greater than that of temperature. In the process of electro-osmosis of soft clay, the better the electro-osmosis effect, the smaller the pH value of the anode and the larger the pH value of the cathode. The pH value of the cathode and anode can be used as one of the indexes to reflect the electro-osmosis effect. |
| first_indexed | 2024-03-09T20:47:57Z |
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| id | doaj.art-ba50b4f8690f44a4bc2e1e54e2f7f235 |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T20:47:57Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ba50b4f8690f44a4bc2e1e54e2f7f2352023-11-23T22:42:05ZengMDPI AGApplied Sciences2076-34172022-02-01125251710.3390/app12052517Study on the Effect of Low-Temperature Anode Filled with FeCl<sub>3</sub> Solution on Electro-Osmotic Reinforcement of Soft ClayPengfei Xiang0Yunliang Cui1Gang Wei2Department of Architectural Engineering, Zhejiang Tongji Vocational College of Science and Technology, Hangzhou 311200, ChinaDepartment of Civil Engineering, Zhejiang University City College, Hangzhou 310015, ChinaDepartment of Civil Engineering, Zhejiang University City College, Hangzhou 310015, ChinaIn order to study the effect of FeCl<sub>3</sub> solution on the current, soil pH value, drainage volume, anode potential difference, energy consumption, and resistivity of electro-osmosis consolidation of soft clay with different moisture contents under a low temperature environment, we carried out 31 sets of model tests under different working conditions by using a self-made device and an improved Miller Soil Box. The test results showed that, under the same conditions, although the energy consumption coefficient of electro-osmosis had little change in the low temperature environment, the current, displacement, and electro-osmosis coefficient were obviously reduced, and the resistivity and anode potential difference was greatly increased, indicating that the low temperature environment reduces the efficiency of electro-osmosis of soft clay. After the anode was filled with FeCl<sub>3</sub> solution, the current, water displacement, and electro-osmotic coefficient were clearly increased; the anode potential difference and electro-osmotic energy consumption coefficient were clearly decreased; and the resistivity was reduced to a certain extent, which indicates that the anode filled with FeCl<sub>3</sub> solution is very beneficial in improving electro-osmotic efficiency and in saving energy. The electro-osmotic discharge after the anode filled with FeCl<sub>3</sub> solution at low temperature was clearly higher than that after the anode was filled water at normal temperature, indicating that the effect of the anode filled with FeCl<sub>3</sub> solution on electro-osmosis is greater than that of temperature. In the process of electro-osmosis of soft clay, the better the electro-osmosis effect, the smaller the pH value of the anode and the larger the pH value of the cathode. The pH value of the cathode and anode can be used as one of the indexes to reflect the electro-osmosis effect.https://www.mdpi.com/2076-3417/12/5/2517soft clay reinforcementelectro-osmosislow temperatureanode groutingFeCl<sub>3</sub> solution |
| spellingShingle | Pengfei Xiang Yunliang Cui Gang Wei Study on the Effect of Low-Temperature Anode Filled with FeCl<sub>3</sub> Solution on Electro-Osmotic Reinforcement of Soft Clay Applied Sciences soft clay reinforcement electro-osmosis low temperature anode grouting FeCl<sub>3</sub> solution |
| title | Study on the Effect of Low-Temperature Anode Filled with FeCl<sub>3</sub> Solution on Electro-Osmotic Reinforcement of Soft Clay |
| title_full | Study on the Effect of Low-Temperature Anode Filled with FeCl<sub>3</sub> Solution on Electro-Osmotic Reinforcement of Soft Clay |
| title_fullStr | Study on the Effect of Low-Temperature Anode Filled with FeCl<sub>3</sub> Solution on Electro-Osmotic Reinforcement of Soft Clay |
| title_full_unstemmed | Study on the Effect of Low-Temperature Anode Filled with FeCl<sub>3</sub> Solution on Electro-Osmotic Reinforcement of Soft Clay |
| title_short | Study on the Effect of Low-Temperature Anode Filled with FeCl<sub>3</sub> Solution on Electro-Osmotic Reinforcement of Soft Clay |
| title_sort | study on the effect of low temperature anode filled with fecl sub 3 sub solution on electro osmotic reinforcement of soft clay |
| topic | soft clay reinforcement electro-osmosis low temperature anode grouting FeCl<sub>3</sub> solution |
| url | https://www.mdpi.com/2076-3417/12/5/2517 |
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