Carbon Nanotubes for Slope Stabilization of Silty Soil
Ahmadi H. Satyanaga A. Orazayeva S. Kalimuldina G. Rahardjo H. Qian Z. Kim J.
December 2024Multidisciplinary Digital Publishing Institute (MDPI)
Infrastructures
2024#9Issue 12
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.
carbon nanotubes , seepage analysis , slope stability , unsaturated soil
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Department of Civil and Environmental Engineering, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, 010000, Kazakhstan
Department of Mechanical and Aerospace Engineering, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, 010000, Kazakhstan
School of Civil and Environmental Engineering, Nanyang Technological University, Block N1, 50 Nanyang Avenue, Singapore, 639798, Singapore
School of Civil Engineering, Southeast University, Nanjing, 211189, China
Advanced Ocean Institute of Southeast University, Southeast University, Nantong, 226010, China
Department of Civil and Environmental Engineering
Department of Mechanical and Aerospace Engineering
School of Civil and Environmental Engineering
School of Civil Engineering
Advanced Ocean Institute of Southeast University
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