Abstract
Compaction is a common soil improvement technique that is used in geotechnical engineering applications to reduce permeability. The size, shape, and distribution of soil particles and pores are altered during this process. Soil fabric refers to the size, shape, and distribution of particles and pores in the soil, and it has a direct impact on permeability, which is an important engineering parameter of soils. The study’s novelty utilized the permeability coefficient in three directions to evaluate the orientation degrees of the mixed clayey mica schist soil and fly ash particles (void, grain, and other components) compacted into the cube-shaped volume at the optimum water content. Thin-section analysis of cubic soil samples revealed that permeability was influenced not only by the shape, size, and distribution of particles and pores in the soil fabric but also by their orientation angles. While the compression direction of the clayey soil had the lowest permeability coefficient of 2.9 × 10–8 m/s, the other two directions had permeability coefficients of 7.0 × 10–8 m/s and 7.2 × 10–8 m/s, respectively. Because there is no orientation effect in all three directions, fly ash has the highest permeability coefficient of 2.25 × 10–7 m/s.
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Söylemez, M. An Experimental Study of the Effect of Soil Particles and Pore Orientation Angles on Permeability. Iran J Sci Technol Trans Civ Eng 47, 3773–3783 (2023). https://doi.org/10.1007/s40996-023-01145-3
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DOI: https://doi.org/10.1007/s40996-023-01145-3