ABSTRACT
The factors which must be known to properly plan the work can be classified as: general, when they affect the whole project or intervene in long term plans, and operative, when they affect specific aspects or short to medium term plans. The fact, along with the influence which the actual drilling equipment can have on the rest of the operations: loading, haulage and crushing, as well as on the predicted work schedules, time allowed and operational costs, make the planning of rock excavation receive special treatment by the engineers in charge. The volume of rock which must be moved, the set time limit and the general organization of work all intervene to determine the excavation schedule in units of time: year, month, week, day and hour.
