Shear strength of sand under different range of confining stresses using various shearing devices
Shear strength of sand under different range of confining stresses using various shearing devices
Small-scale slope modelling is being conducted at the Faculty of Civil Engineering, University of Rijeka, to investigate various aspects of landslides triggered by rainfall, such as effects of initial soil moisture and soil hydraulic properties, the characteristics and patterns of rainfall on the hydro-mechanical response of slopes, and the physical processes and mechanisms driving the initiation and propagation of rainfall-induced landslides, as well as the effectiveness of various remediation measures. Understanding the test results of the physical slope model requires, among others, knowledge of the shear strength properties of the soil(s) forming the model. This study comprises a series of laboratory tests to investigate the shear strength of clean sand used as a base soil material for the construction of slope models. A series of laboratory shear tests were performed using conventional direct shear, triaxial and ring shear devices under a wide range of confining stresses, including low confining stresses typically present in 1g model tests. The strain-controlled tests were performed on sand samples installed at the same density conditions representative to the sand material used in the small-scale slope physical models and under stress conditions representative in small-scale and real slopes.
M. Vivoda Prodan; J. Peranic; V. Jagodnik; D. Marusic; D. Stiberc; N. Kamenar; Z. Arbanas
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
B - Geohazards
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