Brittleness is a key mechanical characteristic of rock and critical to various engineering
practices particularly to design efficient fracturing stimulation of unconventional shale gas …

With increasing coal mining intensity, the number, length and depth of coal mine roadways
is increasing drastically, the traditional drill-&-blast method and comprehensive mechanized …

Prediction of the rockburst proneness of rock in the field is an important problem in rockburst
research. In this paper, the analytical relationship between the strength ratio (the ratio of the …

The dilation angle is the most commonly used parameter to study nonlinear post-peak
dilatancy (PPD) behavior and simulate surrounding rock deformation; however, simplified or …

A series of uniaxial and triaxial compression tests were performed on slate samples with
different diameters at different foliation orientations with respect to the direction of the major …

Active support with the prestressed anchorage system as the core can improve the physical
and mechanical properties of a squeezed large-deformation tunnel by increasing the …

The emergent macroscopic behaviors of Bonded Block Models (BBM) are governed largely
by the properties assigned to their three components–blocks, contacts and zones (blocks …

The constant mi is a fundamental parameter required in the Hoek–Brown (H–B) failure
criterion for estimating rock strength. Triaxial tests for the calculation of this constant are time …

An extensive uniaxial and triaxial compression testing programme was performed on
Indiana Limestone to assess its behaviour across the brittle–ductile transition. Particular …

Triaxial strength tests were performed on artificially jointed standard-size granite specimens
with two sub-vertical and three sub-horizontal (2+ 3) joints. A fully servo-controlled press …