Underground drilling is believed to be a very demanding process. Considerable amount of people also believes that in order to work on mining machines it is important to have a variety of strength. It is in general true, exceptionally when it is connected with drilling very difficult surfaces. On the other side, thanks to diverse law regulations, which were introduced in order to develop the situation of the employees, the above analyzed machines are significantly more trustworthy.
Grounding a new building is generally considered to be pretty complicated. As a result, especially in case of the most demanding buildings there are a lot of people who are responsible for the planning of the whole process. Inter alia a lot of work that has to be put into this process has to be divided in time and among miscellaneous employees.