FIELD: mining art and construction; can be used for crushing rocks, natural and artificial solid masses. SUBSTANCE: method involves drilling of blast holes in rows, before drilling the required consumption of energy is determined for formation of a unit of surface of lumps of crushed medium, and with due account made for the necessary consumption of energy so as to obtain the required degree of crushing, parameters of arrangement of blast holes and distance between them in the first and subsequent rows are preset; the distance between the blast holes is selected with an account of maximum use of energy, and blasting is performed with an account of maximum interaction of explosive charges. EFFECT: facilitated procedure.
| Title | Year | Author | Number |
|---|---|---|---|
| DRILLING AND BLASTING OPERATIONS AT OPEN PITS | 2013 |
|
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|
RU2200298C2 |
