Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Estimation of hydraulic properties of evaporitic rocks in southern Saskatchewan, Canada
https://orcid.org/0000-0002-8531-2577
Abstract The main purpose of this research was to determine the hydraulic properties of evaporitic rocks using geotechnical engineering concepts. A detailed characterization protocol was enacted to understand fluid retention and migration under saturated–unsaturated states using representative samples of Midale evaporites from southern Saskatchewan, Canada. Evolved from geological setting and environmental conditions, the investigated samples comprised low-porosity anhydrites and high-porosity dolomites. Generally, the air entry value measured 1000 kPa and the residual suction value ranged from 6000 to 8000 kPa. The saturated hydraulic conductivity (based on Ito and Azam (Q J Eng Geo 51: 49–62, 2017) and Lebron (Water Resour Res, 35:3149–3158, 1999)) was estimated to be from 2 × $ 10^{−10} $ to 8 × $ 10^{−10} $ m/s for anhydrites and from 1 × $ 10^{−8} $ to 5 × $ 10^{−8} $ m/s for dolomites. The well-established fitting equations for hydraulic conductivity function closely matched up to $ 10^{−11} $ m/s. The fit from van Genuchten (Soil Sci Soc Am J 44: 892–898, 1980) became asymptotic around $ 10^{−20} $ m/s whereas that from Fredlund et al. (Can Geotech J 31:533–546, 1994) showed a lower rate of decrease with suction increase and exhibited a better correlation with vapour flow.
Estimation of hydraulic properties of evaporitic rocks in southern Saskatchewan, Canada
https://orcid.org/0000-0002-8531-2577
Abstract The main purpose of this research was to determine the hydraulic properties of evaporitic rocks using geotechnical engineering concepts. A detailed characterization protocol was enacted to understand fluid retention and migration under saturated–unsaturated states using representative samples of Midale evaporites from southern Saskatchewan, Canada. Evolved from geological setting and environmental conditions, the investigated samples comprised low-porosity anhydrites and high-porosity dolomites. Generally, the air entry value measured 1000 kPa and the residual suction value ranged from 6000 to 8000 kPa. The saturated hydraulic conductivity (based on Ito and Azam (Q J Eng Geo 51: 49–62, 2017) and Lebron (Water Resour Res, 35:3149–3158, 1999)) was estimated to be from 2 × $ 10^{−10} $ to 8 × $ 10^{−10} $ m/s for anhydrites and from 1 × $ 10^{−8} $ to 5 × $ 10^{−8} $ m/s for dolomites. The well-established fitting equations for hydraulic conductivity function closely matched up to $ 10^{−11} $ m/s. The fit from van Genuchten (Soil Sci Soc Am J 44: 892–898, 1980) became asymptotic around $ 10^{−20} $ m/s whereas that from Fredlund et al. (Can Geotech J 31:533–546, 1994) showed a lower rate of decrease with suction increase and exhibited a better correlation with vapour flow.
Estimation of hydraulic properties of evaporitic rocks in southern Saskatchewan, Canada
https://orcid.org/0000-0002-8531-2577
Abstract The main purpose of this research was to determine the hydraulic properties of evaporitic rocks using geotechnical engineering concepts. A detailed characterization protocol was enacted to understand fluid retention and migration under saturated–unsaturated states using representative samples of Midale evaporites from southern Saskatchewan, Canada. Evolved from geological setting and environmental conditions, the investigated samples comprised low-porosity anhydrites and high-porosity dolomites. Generally, the air entry value measured 1000 kPa and the residual suction value ranged from 6000 to 8000 kPa. The saturated hydraulic conductivity (based on Ito and Azam (Q J Eng Geo 51: 49–62, 2017) and Lebron (Water Resour Res, 35:3149–3158, 1999)) was estimated to be from 2 × $ 10^{−10} $ to 8 × $ 10^{−10} $ m/s for anhydrites and from 1 × $ 10^{−8} $ to 5 × $ 10^{−8} $ m/s for dolomites. The well-established fitting equations for hydraulic conductivity function closely matched up to $ 10^{−11} $ m/s. The fit from van Genuchten (Soil Sci Soc Am J 44: 892–898, 1980) became asymptotic around $ 10^{−20} $ m/s whereas that from Fredlund et al. (Can Geotech J 31:533–546, 1994) showed a lower rate of decrease with suction increase and exhibited a better correlation with vapour flow.
Estimation of hydraulic properties of evaporitic rocks in southern Saskatchewan, Canada
Ito, Maki (Autor:in) / Azam, Shahid (Autor:in)
2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
Geotechnical properties of some evaporitic rocks
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Geotechnical properties of some evaporitic rocks
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Osmotic flow through a Cretaceous clay in southern Saskatchewan, Canada
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Evaluation of Soil Water Content Using SWAT for Southern Saskatchewan, Canada
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