Applied Physics and Mathematics Annotation << Back THE THEORETICAL JUSTIFICATION OF THE POSSIBILITY OF USING CUMULATIVE EFFECT IN THE BREAKING OF ORES AND ROCKS DECONCETRATED CHARGES Yu.P. GALCHENKO, A.V. VICHKANOV The article deals with a whole new way for a possible increase of effi ciency of drilling and blasting complex in traditional geotechnology. Breaking open mining operations without over-drilling; formation of additional planes exposure during breaking large blocks in quarries; explosive preparation of cutting slits in mining large cameras; reduction of perimeter of action of explosion if the layer excavation of ore bodies of low and medium power. Contacts: E-mail: schtrek33@mail.ru Pp. 53-61.