Abstract
In this paper, the static and dynamic response of rock engineering models has been investigated using particle flow code. For this purpose, firstly calibration of PFC2D was performed using uniaxial strength and Brazilian tensile strength. After calibration of PFC2D, uniaxial compression test was simulated by creating a rectangular model in PFC2D. The PFC specimen had dimension of 60 mm × 120 mm. The compressive strength of model material was 6 MPa. Rectangular models are subjected under uniaxial loading of 0.1 mm/s, 0.2 mm/s, 0.6 mm/s, 1 mm/s, 2 mm/s, 4 mm/s, 6 mm/s, 8 mm/s, 10 mm/s, 12 mm/s, 14 mm/s, 16 mm/s and 20 mm/s. These models are under confining pressure of 0.5 MPa. Concurrent with uniaxial test, simulation was performed on the rock slope, rock slope consisting a vertical joint and also consisting a central tunnel. Dimension of rock slope is 100 mm × 100 mm. The length of joint was 1 mm × 30 mm, and diameter of tunnel was 20 mm. Totally, 52 models were tested. The results show that failure pattern was affected by loading rate while model strength is affected by failure pattern.
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Haeri, H., Sarfarazi, V. & Fatehi Marji, M. Static and Dynamic Response of Rock Engineering Models. Iran J Sci Technol Trans Civ Eng 46, 327–341 (2022). https://doi.org/10.1007/s40996-020-00564-w
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DOI: https://doi.org/10.1007/s40996-020-00564-w