Výzkum mechanických vlastností žul mrákotínského typu při použití různých druhů trhavin k produkci výrobků hrubé a ušlechtilé kamenické výroby.

Abstract

Content of dissertation is research and evaluation of mechanical quality Mrákotín granite type while using different kinds of demolitions to performance produce coarse and noble earthenware production and solving problem possible alternatives of using demolitions and construction charges at mining rock blocks and at secondary blasting operations used to disposition of raw materials determined to fabrication into produces coarse and noble earthenware production. Investigated were the mechanical properties of rock samples, especially compressive strength and deformation of rocks breaking strength. The test particles were tested in unconfined compression and fixing deformational characteristics of rock in tensile strength. Based on the results of the measurements was determined the optimal choice of expolosive sort, design of the explosive charge and ideal ratio of weight blasting cartridges to surface fracture formed by disconnection the block.