Carbon Nanotubes for Slope Stabilization of Silty Soil
Landslides are a common occurrence that results in both human and financial losses each year around the world. The conventional methods use a variety of techniques, such as the application of lime, cement, and fly ash, for slope stabilization. Nevertheless, all these materials, to some extent, have...
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MDPI AG
2024-12-01
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| Series: | Infrastructures |
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| Online Access: | https://www.mdpi.com/2412-3811/9/12/232 |
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| author | Hussain Ahmadi Alfrendo Satyanaga Saltanat Orazayeva Gulnur Kalimuldina Harianto Rahardjo Zhai Qian Jong Kim |
| author_facet | Hussain Ahmadi Alfrendo Satyanaga Saltanat Orazayeva Gulnur Kalimuldina Harianto Rahardjo Zhai Qian Jong Kim |
| author_sort | Hussain Ahmadi |
| collection | DOAJ |
| description | Landslides are a common occurrence that results in both human and financial losses each year around the world. The conventional methods use a variety of techniques, such as the application of lime, cement, and fly ash, for slope stabilization. Nevertheless, all these materials, to some extent, have their own shortcomings. In this study, multi-walled carbon nanotubes (MWCNTs) application was investigated for slope stabilization. Extensive saturated and unsaturated laboratory testing as well as numerical analyses were conducted in this study for both scenarios of soil with and without MWCNTs. The result from unsaturated testing demonstrates that the air-entry value and saturated volumetric water content of soil with MWCNTs increased compared to soil without MWCNTs, while the unsaturated permeability of soil stabilized with MWCNTs decreased. The result from the SEEP/W analysis during rainfall shows that the pore-water pressure (PWP) in the slope without carbon nanotubes was higher than the PWP in the slope with MWCNTs in the surface area. During rainfall, the factor of safety (FoS) of the slope without MWCNTs declined rapidly and at a high rate according to the Slope/W analysis, whereas the FoS of the slope with MWNCTs only changed slightly and remained safe when compared to the non-stabilized slope. |
| format | Article |
| id | doaj-art-cc25b84e1f314b74be4ddd7e8a0289f5 |
| institution | Kabale University |
| issn | 2412-3811 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Infrastructures |
| spelling | doaj-art-cc25b84e1f314b74be4ddd7e8a0289f52024-12-27T14:30:59ZengMDPI AGInfrastructures2412-38112024-12-0191223210.3390/infrastructures9120232Carbon Nanotubes for Slope Stabilization of Silty SoilHussain Ahmadi0Alfrendo Satyanaga1Saltanat Orazayeva2Gulnur Kalimuldina3Harianto Rahardjo4Zhai Qian5Jong Kim6Department of Civil and Environmental Engineering, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, KazakhstanDepartment of Civil and Environmental Engineering, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, KazakhstanDepartment of Civil and Environmental Engineering, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, KazakhstanDepartment of Mechanical and Aerospace Engineering, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, KazakhstanSchool of Civil and Environmental Engineering, Nanyang Technological University, Block N1, 50 Nanyang Avenue, Singapore 639798, SingaporeSchool of Civil Engineering, Southeast University, Nanjing 211189, ChinaDepartment of Civil and Environmental Engineering, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana 010000, KazakhstanLandslides are a common occurrence that results in both human and financial losses each year around the world. The conventional methods use a variety of techniques, such as the application of lime, cement, and fly ash, for slope stabilization. Nevertheless, all these materials, to some extent, have their own shortcomings. In this study, multi-walled carbon nanotubes (MWCNTs) application was investigated for slope stabilization. Extensive saturated and unsaturated laboratory testing as well as numerical analyses were conducted in this study for both scenarios of soil with and without MWCNTs. The result from unsaturated testing demonstrates that the air-entry value and saturated volumetric water content of soil with MWCNTs increased compared to soil without MWCNTs, while the unsaturated permeability of soil stabilized with MWCNTs decreased. The result from the SEEP/W analysis during rainfall shows that the pore-water pressure (PWP) in the slope without carbon nanotubes was higher than the PWP in the slope with MWCNTs in the surface area. During rainfall, the factor of safety (FoS) of the slope without MWCNTs declined rapidly and at a high rate according to the Slope/W analysis, whereas the FoS of the slope with MWNCTs only changed slightly and remained safe when compared to the non-stabilized slope.https://www.mdpi.com/2412-3811/9/12/232carbon nanotubesslope stabilityunsaturated soilseepage analysis |
| spellingShingle | Hussain Ahmadi Alfrendo Satyanaga Saltanat Orazayeva Gulnur Kalimuldina Harianto Rahardjo Zhai Qian Jong Kim Carbon Nanotubes for Slope Stabilization of Silty Soil Infrastructures carbon nanotubes slope stability unsaturated soil seepage analysis |
| title | Carbon Nanotubes for Slope Stabilization of Silty Soil |
| title_full | Carbon Nanotubes for Slope Stabilization of Silty Soil |
| title_fullStr | Carbon Nanotubes for Slope Stabilization of Silty Soil |
| title_full_unstemmed | Carbon Nanotubes for Slope Stabilization of Silty Soil |
| title_short | Carbon Nanotubes for Slope Stabilization of Silty Soil |
| title_sort | carbon nanotubes for slope stabilization of silty soil |
| topic | carbon nanotubes slope stability unsaturated soil seepage analysis |
| url | https://www.mdpi.com/2412-3811/9/12/232 |
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