RMZ – MATERIALI IN GEOOKOLJE

RMZ – Materials and Geoenvironment, Vol. 59, No. 4, pp. 391–412, 2012391Physicotechnical substantiation of parameters of blastingoperations in deep open pit minesFizikalnotehniška utemeljitev parametrov miniranjav globokih površinskih kopihP. A. Shemetov 1 , I. P. Bibik 1, *1Navoi Mining Metallurgical Combine, Central Mining Board, Administrative building,Zarafshan town, Navoi region, Uzbekistan*Corresponding author. E-mail: I.Bibik@cru.ngmk.uzReceived: March 28, 2012 Accepted: August 28, 2012Abstract: Physicotechnical substantiation of parameters of blasting operationshas been developed giving due consideration to the effect of increasinglycomplicated factors of deep open pit mines of Uzbekistanon efficiency of mining operations, protection of the rock solid andengineering structures from seismic load of bulk blasts, improvingsafety in production and use of emulsion blasting explosives. Therehas been developed an algorithm of calculation of rational elements ofplacing of blasthole BE charge and size composition of broken rocks.Researches have been made to improve formulation of matrix emulsionand emulsification process of feedstock solutions. A procedureof high bench blasting has been developed. A blasting procedure forrocks with different bastards has been developed. A seismically safefor adjacent protected objects method of rock blasting without decreasingrock breaking effect has been recommended. Based on researchesand analysis of risk level of EBE plant for the purpose ofunconditional provision of safe production of EBE a comprehensivesafety. System has been developed for safe operation of the EBE plant.Izvleček: Fizikalnotehniška utemeljitev parametrov miniranja je bila izvedenaob vsestranskem upoštevanju naraščajoče zapletenih razmerv čedalje globljih površinskih kopih v Uzbekistanu in z ozirom naučinkovitost minerskih operacij ter ohranjanje obstojnosti kamninein varnosti tehničnih objektov v razmerah seizmičnih vplivov zaradimasovnega miniranja in glede na zagotavljanje varnosti pri izdelaviOriginal scientific paper