| 摘要 |
The invention relates to mining. Method for formation of well charge of explosive substance includes placement of inert shell with con-rod in the end of the well. To form powerful initiating pulse of cumulative action that increases efficiency of explosion and provides improvement of quality of milling one forms cumulative cavities through placement there of spherical cavities, for instance balls made of chemically inert material that is easily destructed, with diameter 0,5dch., where dch - diameter of ES charge, with wall thickness not less or equal to ??3-5 mm, at that length of limiting height of active section of cumulative charge is determined by expression: Hl. ? lcch. ? 2dsh.cav.., where dsp.cav..= 0,5dch. - diameter of spherical cavity, lcch. - length of cumulative charge.
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