Since underground structures such as tunnels are inevitably surrounded by rocks, their long-
term safety and stability are primarily governed by the comportment of these materials. Being …

Mode-I fracture toughness (K IC) and tensile strength (σ t) are significant parameters in
hydraulic fracturing. Owing to the unique mineral composition and sedimentary environment …

Fracture toughness is an important fracture mechanics parameter of rocks, the double K
criterion can reasonably explain the fracture mechanism of rocks. To investigate the fracture …

To investigate the anisotropic fracture characteristics of coal, physical tests are carried out
on semi-circular bend specimens with different pre-crack inclinations and bedding …

The fracture toughness of rocks is a crucial fracture parameter in unconventional geo-energy
exploitation and plays a significant role in the fields of fracture mechanics and hydraulic …

Failures of the topcoat in pavement structures often occur due to mixed mode I/III traction;
however, incorporating basalt fibers (BFs) into cement mixtures can effectively enhance …

One of the complexities of rock engineering is predicting the fracture, especially in cases
where the rock material exhibits anisotropy in both elastic and fracture properties. In this …

Abundant shale gas in shale reservoirs can be successfully extracted by the fracking
technique. The formation of hydraulic fractures is related to the mode-I fracture toughness …

This paper addresses hydraulic fracture initiation from an initially notch-free wellbore
situated in an anisotropic host rock, where the rock mass is subjected to an in-situ stress …

Neglecting frictional forces between crack surfaces in the brittle fracture of bodies subjected
to compressive-shear loading conditions can result in significant fracture load …