Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Assessing the Effect of Particle Size Distribution on Permeability of Silty-Sandy Soils
https://orcid.org/0000-0003-4534-7684
The hydraulic conductivity is an important parameter in geotechnical studies. This parameter is required for analyzing, predicting, or modeling water flow, contamination movement and chemical transport in porous media of engineering constructions. Particle size distribution, is one of the most important factors affecting soil permeability. The main aim of the present research is assessing the effect of particle size distribution on the permeability coefficient of silty-sandy soils. For this purpose, three sandy soils and one silty soil from different regions of northern Iran have been selected and non-disturbed and disturbed samples have been provided from them. In the laboratory, the sandy soils were mixed with 10, 20, 30, and 40% of the silty soil, which is can be considered as an innovation for this research, and the physical properties were determined for all samples. To evaluate the permeability coefficient of the samples, first the suitable laboratory specimens were reconstructed with a relative density of 0.55 and then tested by a falling head permeameter apparatus. The obtained results indicated that the evaluated permeability coefficient is completely related to the particle size distribution indices of the soils, so that it increases linearly with increasing some indices namely $ D_{10} $, and $ D_{30} $ as well as decreases with increasing the other indices namely $ D_{50} $, $ D_{60} $, coefficient of uniformity ($ C_{u} $), and Coefficient of curvature ($ C_{c} $) as power functions. These found from six regression models developed between the parameters. The values of five calculated statistical indices were revealed that the developed models have high performance degree. Graphical Abstract
Assessing the Effect of Particle Size Distribution on Permeability of Silty-Sandy Soils
https://orcid.org/0000-0003-4534-7684
The hydraulic conductivity is an important parameter in geotechnical studies. This parameter is required for analyzing, predicting, or modeling water flow, contamination movement and chemical transport in porous media of engineering constructions. Particle size distribution, is one of the most important factors affecting soil permeability. The main aim of the present research is assessing the effect of particle size distribution on the permeability coefficient of silty-sandy soils. For this purpose, three sandy soils and one silty soil from different regions of northern Iran have been selected and non-disturbed and disturbed samples have been provided from them. In the laboratory, the sandy soils were mixed with 10, 20, 30, and 40% of the silty soil, which is can be considered as an innovation for this research, and the physical properties were determined for all samples. To evaluate the permeability coefficient of the samples, first the suitable laboratory specimens were reconstructed with a relative density of 0.55 and then tested by a falling head permeameter apparatus. The obtained results indicated that the evaluated permeability coefficient is completely related to the particle size distribution indices of the soils, so that it increases linearly with increasing some indices namely $ D_{10} $, and $ D_{30} $ as well as decreases with increasing the other indices namely $ D_{50} $, $ D_{60} $, coefficient of uniformity ($ C_{u} $), and Coefficient of curvature ($ C_{c} $) as power functions. These found from six regression models developed between the parameters. The values of five calculated statistical indices were revealed that the developed models have high performance degree. Graphical Abstract
Assessing the Effect of Particle Size Distribution on Permeability of Silty-Sandy Soils
https://orcid.org/0000-0003-4534-7684
The hydraulic conductivity is an important parameter in geotechnical studies. This parameter is required for analyzing, predicting, or modeling water flow, contamination movement and chemical transport in porous media of engineering constructions. Particle size distribution, is one of the most important factors affecting soil permeability. The main aim of the present research is assessing the effect of particle size distribution on the permeability coefficient of silty-sandy soils. For this purpose, three sandy soils and one silty soil from different regions of northern Iran have been selected and non-disturbed and disturbed samples have been provided from them. In the laboratory, the sandy soils were mixed with 10, 20, 30, and 40% of the silty soil, which is can be considered as an innovation for this research, and the physical properties were determined for all samples. To evaluate the permeability coefficient of the samples, first the suitable laboratory specimens were reconstructed with a relative density of 0.55 and then tested by a falling head permeameter apparatus. The obtained results indicated that the evaluated permeability coefficient is completely related to the particle size distribution indices of the soils, so that it increases linearly with increasing some indices namely $ D_{10} $, and $ D_{30} $ as well as decreases with increasing the other indices namely $ D_{50} $, $ D_{60} $, coefficient of uniformity ($ C_{u} $), and Coefficient of curvature ($ C_{c} $) as power functions. These found from six regression models developed between the parameters. The values of five calculated statistical indices were revealed that the developed models have high performance degree. Graphical Abstract
Assessing the Effect of Particle Size Distribution on Permeability of Silty-Sandy Soils
Zarooei, Fahimeh (Autor:in) / Fereidooni, Davood (Autor:in)
2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
57.00$jBergbau: Allgemeines
/
38.58
Geomechanik
/
57.00
Bergbau: Allgemeines
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
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