Geomaterials are increasingly being subjected to the quasi-static confinements and dynamic
loadings, and thus it is critical to characterise dynamic behaviour under the coupled static …

Spalling is a typical brittle failure phenomenon of hard rock in deep caverns under high
geostress. In this study, key issues are systematically studied concerning the spalling failure …

Transition in the rate-dependent mechanical response of rock was investigated due to the
presence of impersistent joint with different infill conditions. Four types of samples, ie intact …

Extension fractures are typical for the deformation under low or no confining pressure. They
can be explained by a phenomenological extension strain failure criterion. In the past, a …

In this study, servo-controlled biaxial compression tests were conducted on marble
specimens to investigate their failure characteristics and fracturing process. The complete …

Rocks containing flaws around rock structures are often subjected to complex temperatures
and geological conditions. This study investigates the mechanical behavior of heat-treated …

Complete rock strength envelopes spanning both the tensile and compressive stress
domains are essential to engineering design in Rock. However, the exact shape of the …

abstract Spalling is a typical brittle failure phenomenon of hard rock in deep caverns under
high geostress. In this study, key issues are systematically studied concerning the spalling …

Grouting is a well-established engineering practice for stabilizing the jointed and/or fractured
rock mass. This process may lead to the enhancement of the mechanical properties of …

When confining pressure is low or absent, extensional fractures are typical, with fractures
occurring on unloaded planes in rock. These “paradox” fractures can be explained by a …