Cylindrical sandstone specimens with same crack lengths and different crack inclinations (β)
were subjected to direct tensile testing (DTT) and uniaxial compression testing (UCT) in a …

Hydraulic fracturing is a crucial technology for shale gas exploitation and enhanced
geothermal systems. However, the fundamental mechanisms of hydraulic fracturing, such as …

The main purpose of industrial nondestructive testing (NDT) is to diagnose the stability,
reliability and failure probability of materials, components and structures. Industrial …

Understanding the mechanisms of crack initiation and development is important for utilizing
the hydraulic fracturing in practical engineering applications. In this study, hydraulic …

This study investigated the effect of different water contents (w) and initial crack lengths on
the mechanical properties (ie, the unconfined compressive strength (UCS), deformation …

In soft rock tunnels, there are often large deformations during construction, especially when
the groundwater seepage and softens the surrounding rock. For achieving the purpose of …

Engineering rock containing flaws or defects under a large water source is frequently subject
to the couple influence of constant crack water pressure and geostress. To investigate the …

A grain‐based rock model was developed and applied to study mechanical characteristics
and failure micromechanics in thick‐walled cylinder and wellbore stability tests. The rock is …

To accurately determine the stress characteristics of underground rock masses subjected to
hydraulic pressure, and to reveal the crack-initiation, crack-propagation, and …

A series of cylindrical intact and jointed rock-like specimens with single pre-existing cracks
were prepared using high-strength gypsum by embedded thin sheet mica. Uniaxial …