Coal mine methane (CMM) is a term given to the methane gas produced or emitted in
association with coal mining activities either from the coal seam itself or from other gassy …

Underground coal mining has a strong disturbance on surrounding rock strata, causing
inevitable water inflow into mined spaces, which seriously affects safety production. Mine …

Spontaneous heating in the active goaf area during normal mining processes poses
increased threats to mine productivity and safety, as evidenced in events induced by …

Underground methane-rich and combustion-prone longwall mining gobs are usually
subjected to the symbiotic thread between coal gas and combustion disasters. Quantitative …

This paper presents a novel numerical approach to simulate the longwall mining in detail,
aiming to investigate the stability of gates and the loading process to rock bolts. The study …

Once the residual coal occurs spontaneous combustion in mine, it will cause a fire accident
resulting in heavy personal injury and property damage. So it is of great significance for …

The paper presents an innovative numerical approach to simulate progressive caving of
strata above a longwall coal mining panel. A proposed Trigon logic is incorporated within …

This study addresses methane dispersion in a mine tunnel with discrete methane sources
and various methods to handle it. Air flow behavior and methane dispersion in the tunnel are …

Broken rock and coal—residual coal, plus material from the immediate roof and overlying
strata—fill in the goaf, in an area termed the caving zone. Due to its high porosity and …

The pore and fracture are the path of energy, mass and momentum transfer and conduction
in the gob, determine its reasonable distribution is the basis for studying the coal …