Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The Scale Effects on the Shear Strength Behavior of Silty Sand Soil in Direct Shear Tests
The direct shear test is widely used in geomechanics investigation to obtain the shear strength properties of soils. The simplicity and repeatability of the results presented by this apparatus have kept the direct shear tests in use for more than 60 years. An effort has been made to study the effect of two various sizes of the shear box (60 × 60 and 300 × 300 mm) on the shear strength characteristics of silty sand soil used in this research and to evaluate the effect of test condition (saturated and wet conditions) on the experimental results of this test. The disturbed samples are almost prepared at an initial water content of (8 ± 1%) and two different initial dry unit weights (1.662 and 1.330 Mg/m3). The results from two apparatuses appear that the internal angle of friction obtained from small shear box is higher (1–2°) compared to the big shear box. Also, the samples sheared under unsaturated conditions exhibited higher shear strength corresponding to those tested under saturated conditions. The results indicate that an increasing the specimen density caused an increase in the maximum shear strength in each of two shear box sizes.
The Scale Effects on the Shear Strength Behavior of Silty Sand Soil in Direct Shear Tests
The direct shear test is widely used in geomechanics investigation to obtain the shear strength properties of soils. The simplicity and repeatability of the results presented by this apparatus have kept the direct shear tests in use for more than 60 years. An effort has been made to study the effect of two various sizes of the shear box (60 × 60 and 300 × 300 mm) on the shear strength characteristics of silty sand soil used in this research and to evaluate the effect of test condition (saturated and wet conditions) on the experimental results of this test. The disturbed samples are almost prepared at an initial water content of (8 ± 1%) and two different initial dry unit weights (1.662 and 1.330 Mg/m3). The results from two apparatuses appear that the internal angle of friction obtained from small shear box is higher (1–2°) compared to the big shear box. Also, the samples sheared under unsaturated conditions exhibited higher shear strength corresponding to those tested under saturated conditions. The results indicate that an increasing the specimen density caused an increase in the maximum shear strength in each of two shear box sizes.
The Scale Effects on the Shear Strength Behavior of Silty Sand Soil in Direct Shear Tests
Karkush, Mahdi O. (Herausgeber:in) / Choudhury, Deepankar (Herausgeber:in) / Al-Emami, Omar H. (Autor:in) / Al-Sultan, Ammar A. (Autor:in)
Geotechnical Engineering and Sustainable Construction ; Kapitel: 7 ; 79-90
20.03.2022
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Scale effects , Direct shear , Peak shear strength , Silty sand , Density , Test condition Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Transportation Technology and Traffic Engineering , Environment, general , Building Construction and Design
Unsaturated shear strength of a silty sand
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Shear strength of an unsaturated silty sand
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Shear Strength and Stiffness of Silty Sand
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Unsaturated shear strength of a silty sand
| Online Contents | 2013