As a nondestructive testing method, the Schmidt rebound hammer is widely used for
structural health monitoring. During application, a Schmidt hammer hits the surface of a …

One of the most significant input parameters in rockfall trajectory modelling is the Coefficient
of Restitution, which controls block rebound. In particular, in the design of rockfall barriers, it …

Many examples have shown that rockfalls can occur in underground coal mines. The
presence of rockfalls in the long walls of a steeply dip** coal seam (SDCS) is harmful due …

The coefficient of restitution is a parameter used to describe the result of a collision between
either two particles or a particle and a surface. The coefficient of restitution is a measure of …

Different opinions exist in the current research on the COR (coefficient of restitution) of
rockfall, and these controversies can be attributed to the difference in the reduction degree …

Uniaxial compressive strength (UCS) is substantially used mechanical parameters to
observe and classification of rocks, but this test is subsersive, taking a long time and …

The normal coefficient of restitution (NCOR) is a useful index to quantify the energy
dissipation during impact. This study presents experimental tests of marble spheres …

The rock instability of granodiorite mountain rock located within a key route for the Mecca
city (Al Haram) and Al-Taif (tourist place) was investigated. In this study eight, highly …

Rockfall, a rapid and high-impact landslide phenomenon, poses significant risks to lives,
infrastructure, and transportation routes in hilly and mountainous regions. This hazard is …

Rockfall often collides with the slope during the movement on a slope surface, and the
energy dissipation of rockfall collision is used to quantify by the coefficient of restitution …