Abstract
The effect of the application of a large number of small loading cycles on the small strain stiffness of granular soils has been explored in the generalized multiaxial stress space using the Hollow CylinderTorsional Apparatus (HCTA). The experimental investigation has been carried out on an angular to sub-angular silica sand. The sequence of cyclic loading has been performed for a range of stress levels and orientation of the principal stress axes. Accurate measurements of the quasi-elastic properties of the material were obtained using six non-contact dis placement transducer (based on eddy current effect) with a resolution of 0.1 μm. Vertical, circumferential and radial strains of the sample could be accurately measured to obtain accurate estimation of Young and Shear moduli at very small strain levels. Changes in both moduli under a sequence of both axial and torque loading cycles will be presented for different initial multiaxial stress conditions.
Original language | English |
---|---|
Title of host publication | 1st IMEKO TC4 International Workshop on Metrology for Geotechnics, MetroGeotechnics 2016 |
Subtitle of host publication | Proceedings of a meeting held 17-18 March 2016, Benevento, Italy. |
Publisher | IMEKO-International Measurement Federation Secretariat |
Pages | 175-180 |
Number of pages | 6 |
ISBN (Print) | 9789299007501, 9781510822917 |
Publication status | Published - 18 Mar 2016 |
Event | 1st IMEKO TC4 International Workshop on Metrology for Geotechnics, MetroGeotechnics 2016 - Benevento, Italy Duration: 17 Mar 2016 → 18 Mar 2016 |
Conference
Conference | 1st IMEKO TC4 International Workshop on Metrology for Geotechnics, MetroGeotechnics 2016 |
---|---|
Country/Territory | Italy |
City | Benevento |
Period | 17/03/16 → 18/03/16 |