The violent and unexpected nature of the phenomena enhances the mining risk and danger to mineworkers.A number of techniques are used to predict and prevent the
Decrease of the gas content in the worked seam by degassing before the start of winning hasproven its worth in some areas of German hard coal mines,on the one ha
The effective management of longwall goaf gas emission,spontaneous heating and goalinertisation is paramount to the sustained productivity and safety of undergro