Choice of a rational type of explosive by the method of hierarchies’ analysis
DOI:
https://doi.org/10.15587/1729-4061.2013.9165Keywords:
Method of hierarchies’ analysis, explosive, blasting, rock, rational typeAbstract
Explosives are used for extraction of minerals, and demand for them is growing every year. The quality of preparation of mined rock and blasting safety depend on choice of the rational type of explosives. Therefore, one of the most important ways to increase the efficiency of destruction of rocks in quarries is the choice of an explosive with identification of the most effective variant by ranking of the criteria. A positive solution of this problem can be achieved using the method of hierarchies’ analysis. The article presents the calculation of the relative degree of importance of comparison criteria when selecting explosives for blasting in rocks. The analysis of calculations showed that the biggest weight (2.07) had the criterion of efficiency of explosives, and the lowest (0.3) had the safe distance criterion according to the effect of shock wave on a human. The greatest importance has the criterion of efficiency of explosives (0.31), the less importance has the safe distance criterion according to the effect of the shock air wave on a human (0.05). Using the method of hierarchies analysis we have compared the following explosives: polymix GR4-T10 polymix GR1/8 polymix GR1/8 (85%) + KRUK2 (15%), polymix GR1/8 (74%) + KRUK2 (26%) and compolite GS6 for use in the destruction of rocks (granites). The comparison revealed that the overall importance for each explosive has been respectively 0.12, 0.18, 0.17, 0.16 and 0.157. According to the degree of importance of each of explosive it was found that the most appropriate polymix for blasting in granites is GR1/8. The results can be used to design blasting in quarries rocksReferences
- The analytic hierarchy process of explosives types gives possibility to compare: polymix ГР4-Т10, polymix ГР1/8, polymix ГР1/8 (85%) + КРУК2 (15%), polymix ГР1/8 (74%) + КРУК2 (26%) and compolight ГС6 for the destruction of granites.
- The result of the comparison shown that the overall degree of importance for each of explosives is respectively 0.12, 0.18, 0.17, 0.16 and 0.157. According to the degree of importance of each of explosives it was found that the most suitable for explosive works on the granites is polymix ГР1/8
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Copyright (c) 2014 Віктор Данилович Воробйов, Олег Маркович Терентьєв, Оксана Ярославівна Тверда
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