The worldwide mining industry consumes a vast amount of energy in reduction of fragment
size from mining to mineral processing with an extremely low-energy efficiency, particularly …

To determine ground stress behavior under the special condition of a regenerated roof, we
established a model of elastic rectangular cantilever thin plates. Moreover, the critical …

Surface subsidence induced by mineral extraction from underground mines can significantly
affect the ecological environment and human life. Surface collapse is extremely hazardous …

A reliable design of stopes is critical to ensure both safety and efficiency in mining
operations. The evolving mining methods and technologies as well as increasing mining …

Ore mining under the open-pit final slope will result in caving and large displacement
movement of rock-masses surrounding the goaf. It is difficult for numerical methods that …

Nine blasts with cylindrical granite specimens were carried out under different stemming
conditions. All rock specimens had a diameter of 240 mm and a length of 300 mm. Explosive …

Based on the data of global mineral production and ore recovery in mining and mineral
processing, this paper presents the annual production of 25 minerals and calculates the …

An extra-deep multiple-point borehole extensometer, applicable up to 300 m depth of cover,
is introduced for the deformation monitoring of the deep rock masses (ie, the rock mass …

In rock blasting, there are different constraint conditions such as a free surface, a partial free
surface and a free surface with a barrier nearby. These conditions were modelled by three …

Ten blasts with cylindrical granite specimens were carried out in four groups with different
specific charges and different constraint conditions. All rock specimens came from a granite …