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Optimized blasting design for large-scale quarrying based on a 3-D spatial distribution of rock factor

Cited 11 time in Web of Science Cited 22 time in Scopus
Authors
Shim, Hyun-Jin; Ryu, Dong-Woo; Chung, So-Keul; Synn, Joong-Ho; Song, Jae-Joon
Issue Date
2009
Publisher
Elsevier
Citation
Int J Rock 2009;46: 326-332
Keywords
Rock factorRock fragmentationKuz–RammodelSIS
Abstract
Rock fragmentation plays a critical role in large-scale quarrying operations because of its directe ffects
on the costs of drilling, blasting, secondary blasting and crushing. In this aspect, it is essential to
consider rock fragmentation in blasting design. The optimum blasting pattern to excavate aquarry
efficiently and economically can be determined based on the minimum production cost which is
generally estimated according to rock fragmentation. By comparing various prediction models, it can be
as certained that the results obtained from the Kuz–Rammodel relatively coincide with the results from
field measurements. This model uses the rock factor to sign if y conditions of rock mass such as block
size, rock jointing, strength, and others. The rock factor is estimated from geologic data such as block
size of rock mass, rock jointing, strength, andothers, and its 3-D spatial distribution was predicted by a
sequential indicator simulation(SIS) technique. The entire quarry in question was classified into three
types of rock mass and an optimum blasting pattern was proposed for each type based on the 3-D
spatial distribution of the rock factor.It can,therefore,be concluded that it is possible to design a
blasting pattern to achieve a minimum production cost in large-scale quarrying operations by
predicting rock fragmentation based on the 3-D spatial distribution of the rock factor.
ISSN
1365-1609
Language
English
URI
https://hdl.handle.net/10371/68324
DOI
https://doi.org/10.1016/j.ijrmms.2008.07.006
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Energy Systems Engineering (에너지시스템공학부)Journal Papers (저널논문_에너지시스템공학부)
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