Kaçar, Gülden

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https://hdl.handle.net/20.500.14411/8012
Name Variants
Kacar, Gulden
Kaçar, Gülden
K.,Gulden
Kacar,G.
K., Gulden
Kaçar,G.
K.,Gülden
G.,Kacar
G.,Kaçar
Gülden, Kaçar
Gulden, Kacar
G., Kacar
Job Title
Öğretim Görevlisi
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Department of Modern Languages
Status
Former Staff
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10th ISRM Congress -- 10th International Society for Rock Mechanics Congress, ISRM 2003 -- 8 September 2003 through 12 September 2003 -- Sandton -- 1391961
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    Citation - Scopus: 2
    Effect of Discontinuity Orientation and Spacing on the Blasting Performance in Some Open Cast Mines of Tki-Turkey
    (International Society for Rock Mechanics, 2003) Kaçar,G.; Özgenoglu,A.; Bilgin,H.A.
    In this study, the influences of rock mass properties on the blasting performance in open cast mines are investigated. To this end, discontinuity spacings and discontinuity orientations are measured and full scale blasts with various designs are observed in open cast mines of Aegean Lignite (ELI) and Bursa Lignite (BLI) Establishments belonging to Turkish Coal Enterprises (TKI). For each blast, blasting cost is calculated, and particle size distribution representing the fragmentation of muckpile is determined by means of Split-Desktop software using image processing. 50%(K50), 80%(K80) passing sizes and topsize values are used in the determination of blasting performance according to rock mass properties. The relationships between orientation angle, which is the acute angle between the strikes of slope face and major discontinuity, and 50%(K50) and 80%(K80) passing sizes and topsize values and also blasting cost are investigated in order to analyse the influences of major discontinuity orientation on fragmentation and blasting cost. Furthermore, the relationships between discontinuity modal spacing (or block size index) and 50%(K50) and 80%(K80) passing sizes and topsize values and also blasting cost are investigated in order to analyse the influences of discontinuity spacing on fragmentation and blasting cost. In this paper, the trends observed in these relationships are discussed and the importance of it in mining is commented. © 2003 10th ISRM Congress. All rights reserved.