| 摘要 |
<p>The invention relates to the metal mining industry, in particular to a method for carrying out open cast mining in watered masses. The aim of the invention is to increase the cost-performance ratio of the breaking up by explosives said watered masses, improve rock breaking quality and to reduce the cost of drilling and blasting. The inventive method consists in drilling a well, filling said well with water from a water-bearing stratum, injecting a water-soluble active compound, forming a blasting charge by the pumping thereof under a column of water and in blasting out. The explosive is embodied in the form of an emulsion blasting material.</p> |
