Faculty of Mining, Geology and Petroleum Engineering University of Zagreb
Abstract
Optimalizacijom miniranja uz zaokrctanje fronte kamenoloma za oko 20º ostvarivanje takvog granulometrijskog sastava minirane mase da natgabaritnih blokova bude ispod 1 %, troškovi bušačko-minerskih radova za pridobivanje istih količina kamena smanjiti će se približno na polovinu. Optimalizacija je provedena nakon detaljnog snimanja diskontinuiteta u stijenskoj masi, njihove i statističke obrade te eksperimentalnog određivanja veličine linije najmanjeg otpora u samom kamenolomuThe optimalization of exploitation in »Lakovići« limestone quarry is described. Based on determined discontinuities in the rock mass and their densities, the best possible working site have been located in order to obtain the best possible sizes of blasted rocks and work slope stability. Optimal lowest resistance line size for the quarry has been counted and proved experimentally. New blasting parameters have resulted in considerable saving of drilling and explosive