A floor heave event occurred releasing CH4 gas into working face in MG104. The gas release event caused the Continuous Miner to trip power on the GB gas sensor. A hand held gas detector at the continuous miner recorded peak readings of 1.1% CH4 while the second unit presented an off-scale reading.
A Methane Inrush is a Methane Inrush no matter whether it is referred to as floor-blow incidents or methane floor blowers, or floor blowers in the goaf or floor heave events…