FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4200608947> ?p ?o ?g. }

• W4200608947 endingPage "55" @default.
• W4200608947 startingPage "43" @default.
• W4200608947 abstract "Purpose. Drilling-blasting technology is one of the simplest and most often used techniques in open pit mining. This allows the excavation of a large volume of rock and useful mineral substance. The operation of blasting using the energy of explosives plays an important role in open pit exploitation, being also the key element of the blasting process through which a corresponding granulometry is obtained. This operation is a part of a series of interdependent operations, in the sense that each operation determines a certain result that will be an important element for the next operation that takes place in the working face. Consequently, the blasting operation with explosives should not be considered as an independent act. A global approach to the entire production technological process including blasting is required. Methods. In the optimization study, the basic method consisted in the analysis of the blasting operations performed at the drilling diameter of 250 mm (blasting technology used in Roşia Poieni open pit mining) and simulation of the excavation of the same rock volume, with the optimization of the explosive charge distribution at two other drilling diameters: 200 and 150 mm. Findings. The main problems when shooting 250 mm dia holes are caused by the length of the tamping in the mineralized rock that leads to the appearance of blocks with dimensions which are maximum allowed in the crusher tank (1.2-1.3 m). That is why discontinuous loads with intermediate tamping are used – the method that successfully limits their number. In order to obtain a granulometry corresponding to the primary crushing operation, which will allow to decrease the crushing costs, it is necessary to use smaller drilling diameters, but with productivity high enough to ensure the optimal development of the extraction process. Originality. Based on the performed study, it is recommended to use the discontinuous load, preserving the total length of the explosive charge. In the zones where the rocks have a Protodiakonov coefficient f > 6.5, it is recommended to apply an appropriate drilling diameter (150-200 mm) and use the intermediate tamping at 2-3 m length to limit the upper stemming area to a maximum of 7 m (to limit or eliminate the occurrence of oversized blocks). Practical implications. The research results will enhance the geometric and safety factors of the operation, limiting the explosion effect on the massif and the environment and reducing the total costs of the cutting operation. The cost of explosives and initiating materials can be reduced by using a smaller quantity of explosive gels in a dry environment (12-18 kg/hole), the difference in the explosive charge length being completed with AM 1." @default.
• W4200608947 created "2021-12-31" @default.
• W4200608947 creator A5033010456 @default.
• W4200608947 date "2021-12-01" @default.
• W4200608947 modified "2023-10-18" @default.
• W4200608947 title "Optimization study of blasting operations in Roşia Poieni open pit mine, Romania" @default.
• W4200608947 doi "https://doi.org/10.33271/mining15.04.043" @default.
• W4200608947 hasPublicationYear "2021" @default.
• W4200608947 type Work @default.
• W4200608947 citedByCount "1" @default.
• W4200608947 countsByYear W42006089472022 @default.
• W4200608947 crossrefType "journal-article" @default.
• W4200608947 hasAuthorship W4200608947A5033010456 @default.
• W4200608947 hasBestOaLocation W42006089471 @default.
• W4200608947 hasConcept C111919701 @default.
• W4200608947 hasConcept C127313418 @default.
• W4200608947 hasConcept C127413603 @default.
• W4200608947 hasConcept C154238967 @default.
• W4200608947 hasConcept C16674752 @default.
• W4200608947 hasConcept C178790620 @default.
• W4200608947 hasConcept C184977646 @default.
• W4200608947 hasConcept C185592680 @default.
• W4200608947 hasConcept C187320778 @default.
• W4200608947 hasConcept C198340109 @default.
• W4200608947 hasConcept C205507351 @default.
• W4200608947 hasConcept C25197100 @default.
• W4200608947 hasConcept C31858485 @default.
• W4200608947 hasConcept C41008148 @default.
• W4200608947 hasConcept C50933969 @default.
• W4200608947 hasConcept C78519656 @default.
• W4200608947 hasConcept C98045186 @default.
• W4200608947 hasConceptScore W4200608947C111919701 @default.
• W4200608947 hasConceptScore W4200608947C127313418 @default.
• W4200608947 hasConceptScore W4200608947C127413603 @default.
• W4200608947 hasConceptScore W4200608947C154238967 @default.
• W4200608947 hasConceptScore W4200608947C16674752 @default.
• W4200608947 hasConceptScore W4200608947C178790620 @default.
• W4200608947 hasConceptScore W4200608947C184977646 @default.
• W4200608947 hasConceptScore W4200608947C185592680 @default.
• W4200608947 hasConceptScore W4200608947C187320778 @default.
• W4200608947 hasConceptScore W4200608947C198340109 @default.
• W4200608947 hasConceptScore W4200608947C205507351 @default.
• W4200608947 hasConceptScore W4200608947C25197100 @default.
• W4200608947 hasConceptScore W4200608947C31858485 @default.
• W4200608947 hasConceptScore W4200608947C41008148 @default.
• W4200608947 hasConceptScore W4200608947C50933969 @default.
• W4200608947 hasConceptScore W4200608947C78519656 @default.
• W4200608947 hasConceptScore W4200608947C98045186 @default.
• W4200608947 hasIssue "4" @default.
• W4200608947 hasLocation W42006089471 @default.
• W4200608947 hasOpenAccess W4200608947 @default.
• W4200608947 hasPrimaryLocation W42006089471 @default.
• W4200608947 hasRelatedWork W1600044287 @default.
• W4200608947 hasRelatedWork W2365455338 @default.
• W4200608947 hasRelatedWork W2371001505 @default.
• W4200608947 hasRelatedWork W2885160103 @default.
• W4200608947 hasRelatedWork W2920638769 @default.
• W4200608947 hasRelatedWork W3087437028 @default.
• W4200608947 hasRelatedWork W3192971139 @default.
• W4200608947 hasRelatedWork W4200608947 @default.
• W4200608947 hasRelatedWork W4321232221 @default.
• W4200608947 hasRelatedWork W650352761 @default.
• W4200608947 hasVolume "15" @default.
• W4200608947 isParatext "false" @default.
• W4200608947 isRetracted "false" @default.
• W4200608947 workType "article" @default.