Abstracts Archive

Shock loss occurs when there is a change in the area of a drift or airflow direction. These shock losses accumulate throughout the ventilation system and will increase the mine resistance as underground development deepens or becomes more complex. Hence, shock losses should be carefully considered w...

Vale's Coleman mine, operating at depths reaching 1,850 m, could experience underground summer temperatures >40°Cdb/28°Cwb without cooling. Through 2019-20, BBE provided EPCM for a 10.3MWR vapour-compression cooling plant that allowed 15% ambient air mixing. The footprint was restricted on three ...

Large-opening stone mines are characterized by entry sizes twice or thrice the size of typical underground coal or metal/nonmetal mines. Due to the large openings, the volume of air needed to ventilate these mines is significantly higher than in coal or metal/nonmetal mines. This leads to low air ve...

Computer simulations have become an important component of the technical world today and are now the intermediate/third discipline between theory and practical experimentation. New technologies can be built more easily, more accurately, and without expensive prototypes being produced. More time is r...

The ventilation of mines and underground works has been studied for more than 100 years, with extensive and rigorous results that currently aid in safely performing underground operations of different kinds and characteristics. However, the study of underground ventilation in large volumes such as c...