DEVELOPMENT OF HYDRAULIC DRILLING IN THE SMM PENARROYA MINES

THE AUTHOR MAKES SOME THEORETICAL COMMENTS ON THE ENERGY NEEDED FOR PNEUMATIC AND HYDRAULIC DRILLING AND DESCRIBES RESULTS OBTAINED IN MINING OPERATIONS. SELECTION CRITERIA ARE DESCRIBED TOGETHER WITH THE CONDITIONS OF USE OF HYDRAULIC EQUIPMENT. THE REASONS FOR SELECTING HYDRAULIC DRILLING IN THE NEW MINE IN SAINT SALVY ARE OUTLINED.