How to dig a frozen ground
All these methods are good in cases if there are free places for work and you can afford to carry out large -scale explosive work. When it comes to the need to dig a hole in a constrained space, for example, between buildings, the best way will be only a “spatular” digging, since explosive work and bonfires can lead to serious catastrophic consequences. Never do such things. If you do not feel sorry for your health — take care of those who can accidentally suffer.