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A platform for research: civil engineering, architecture and urbanism
Characterizing the Effect of Fines Content on the Small Strain Shear Modulus of Sand-Silt Mixtures During Hydraulic Hysteresis
Small strain shear modulus, Gmax, is one of the most important parameters for the characterization of the behavior of earth structures subjected to static or dynamic loading conditions. This research presents an experimental laboratory study on the effect of non-plastic fines content and hydraulic hysteresis on the Gmax of unsaturated sandy soils. In this regard, clean Firoozkuh No. 161 silica sand which is classified as poorly graded sand was mixed with different percentages of non-plastic Firoozkuh silt. A set of bender element tests were carried out using two modified triaxial devices. The modifications on these two apparatus were to add HAV ceramic discs for air–water control of unsaturated specimens, in addition to including piezoelectric bender elements to send and receive shear waves and measure their velocities within the unsaturated silt-sand mixtures. Axis translation technique was implemented for hydromechanical purposes and bender element for shear wave velocity measurements and calculating Gmax.
Characterizing the Effect of Fines Content on the Small Strain Shear Modulus of Sand-Silt Mixtures During Hydraulic Hysteresis
Small strain shear modulus, Gmax, is one of the most important parameters for the characterization of the behavior of earth structures subjected to static or dynamic loading conditions. This research presents an experimental laboratory study on the effect of non-plastic fines content and hydraulic hysteresis on the Gmax of unsaturated sandy soils. In this regard, clean Firoozkuh No. 161 silica sand which is classified as poorly graded sand was mixed with different percentages of non-plastic Firoozkuh silt. A set of bender element tests were carried out using two modified triaxial devices. The modifications on these two apparatus were to add HAV ceramic discs for air–water control of unsaturated specimens, in addition to including piezoelectric bender elements to send and receive shear waves and measure their velocities within the unsaturated silt-sand mixtures. Axis translation technique was implemented for hydromechanical purposes and bender element for shear wave velocity measurements and calculating Gmax.
Characterizing the Effect of Fines Content on the Small Strain Shear Modulus of Sand-Silt Mixtures During Hydraulic Hysteresis
Lecture Notes in Civil Engineering
Tutumluer, Erol (editor) / Nazarian, Soheil (editor) / Al-Qadi, Imad (editor) / Qamhia, Issam I.A. (editor) / Jebeli, Mohammadreza (author) / Mohsen Haeri, S. (author) / Khosravi, Ali (author)
2021-08-05
13 pages
Article/Chapter (Book)
Electronic Resource
English
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Influence of size disparity on small-strain shear modulus of sand-fines mixtures
| British Library Online Contents | 2018
Influence of size disparity on small-strain shear modulus of sand-fines mixtures
| British Library Online Contents | 2018
Impact of hydraulic hysteresis on the small strain shear modulus of unsaturated sand
| British Library Online Contents | 2018