Effect of the Number and Orientation of Fractures on the P-Wave Velocity Diminution: Application on the Building Stones of the Rabat Area (Morocco)

Research reveals that the P-wave velocity (Vp) in two types of Moroccan building stones, calcarenite and marble, diminishes with increasing fractures, but at rates dependent on both fracture number and orientation. While calcarenite shows variable Vp diminution due to its rougher, more heterogeneous structure, marble exhibits a steady decline linked to its smoother, granoblastic texture. Fractures parallel to the wave propagation direction slightly amplify Vp, acting as waveguides, whereas those at 45° cause less diminution than fractures at 25° or 90°. These trends persist under both dry and saturated conditions, reflecting the compressive nature of P-waves and their interaction with solid media. The study provides insights into how fracture characteristics influence seismic properties in building stones, relevant for heritage conservation.

Azhari, H. E., & Hassani, I.-E. E. A. E. (2013). Effect of the Number and Orientation of Fractures on the P-Wave Velocity Diminution: Application on the Building Stones of the Rabat Area (Morocco). Geomaterials, 03(03), 71–81. https://doi.org/10.4236/gm.2013.33010