Excavating frozen earth during winter is truly not an easy task.
Although the temperature in the Northern Territory hasn't dropped that low yet, and the soil hasn't hardened to the toughness of iron, with this heavy snowfall, excavating is still by no means easy.
In fact, even coal mining has started to become increasingly difficult. Although coal seams aren't as frozen solid as the ground, miners still have to expend more physical effort to extract it.
If it weren't for this sudden snowfall, in a while, the coal mine managers would have to report to Perfikot about the declining mining yield due to weather conditions.
So, digging a shallow mine shaft to avoid the impacts of snow and seasonal changes is quite necessary.
However, how to excavate the mine shaft is a common dilemma for everyone.
