KammerPfeilerAbbau
KammerPfeilerAbbau refers to a mining method used primarily in underground coal mines. This technique involves extracting coal in a pattern of pillars and chambers, where relatively narrow tunnels, or chambers, are excavated, leaving behind substantial blocks of coal, known as pillars, to support the roof of the mine. The extraction process typically begins from the deepest parts of the mine and progresses towards the shaft.
The primary objective of kammerpfeilerabbau is to support the overlying strata and prevent roof collapse. The
This method is characterized by a high degree of mine stability during the initial extraction phase due