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Blasting Design Without Subdrilling on Jointed Limestone to Optimize Fragmentation and Blasting Cost

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@article{IJASEIT2569,
   author = {Muhammad Taufik Toha and Bochori Bochori and Waluyo Waluyo},
   title = {Blasting Design Without Subdrilling on Jointed Limestone to Optimize Fragmentation and Blasting Cost},
   journal = {International Journal on Advanced Science, Engineering and Information Technology},
   volume = {7},
   number = {5},
   year = {2017},
   pages = {1920--1926},
   keywords = {blasting design; jointed limestone; subdrilling; drilling and blasting efficiency.},
   abstract = {Bench blasting operation on limestone opencast mining at PT. Semen Padang (Persero), Indonesia performed by electric blasting using coloumn loading system. Limestone deposit consist of three type of rock characteritics that are hard limestone, sugary limestone, and jointed limestone. In general, a good blasting design should implementing subdrilling to avoid toe. In this case of study the subdrilling is not need due to the present of many cracks caused by basalt intrusion. Blasting geometry that applied to blast the jointed limestone resulting blasting fragmentation that commonly relatively small in size (<60 cm) but still has some boulders (>60 cm) that caused by coloumn loading system where energy was concentrated in the bottom. Based on field observation of limestone blasting operation and productivity of excavator being used that is Excavator Hitachi EX 1100 with 5.4 m3 bucket capacity, can be optimized. Especially from the view of drilling and blasting efficiency by modifying blasting geometry and explosive usage to optimize fragmentation to the productivity of excavator being used. Modification that performed is eliminate the sub drilling and change the explosives loading system from coloumn loading to deck loading (include amount of explosives and detonator being used). Based on result of modification, achieve decreasing of boulder percentage as much as 50.25% that is from 9.71% to 4.83% and increasing of excavator productivity up to 36.10% from 1,479 ton/hour to 2,013 ton/hour as well as decreasing blasting cost up to 17.18% from Rp 3,456/ton to Rp 2,862/ton.},
   issn = {2088-5334},
   publisher = {INSIGHT - Indonesian Society for Knowledge and Human Development},
   url = {http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=2569},
   doi = {10.18517/ijaseit.7.5.2569}
}

EndNote

%A Toha, Muhammad Taufik
%A Bochori, Bochori
%A Waluyo, Waluyo
%D 2017
%T Blasting Design Without Subdrilling on Jointed Limestone to Optimize Fragmentation and Blasting Cost
%B 2017
%9 blasting design; jointed limestone; subdrilling; drilling and blasting efficiency.
%! Blasting Design Without Subdrilling on Jointed Limestone to Optimize Fragmentation and Blasting Cost
%K blasting design; jointed limestone; subdrilling; drilling and blasting efficiency.
%X Bench blasting operation on limestone opencast mining at PT. Semen Padang (Persero), Indonesia performed by electric blasting using coloumn loading system. Limestone deposit consist of three type of rock characteritics that are hard limestone, sugary limestone, and jointed limestone. In general, a good blasting design should implementing subdrilling to avoid toe. In this case of study the subdrilling is not need due to the present of many cracks caused by basalt intrusion. Blasting geometry that applied to blast the jointed limestone resulting blasting fragmentation that commonly relatively small in size (<60 cm) but still has some boulders (>60 cm) that caused by coloumn loading system where energy was concentrated in the bottom. Based on field observation of limestone blasting operation and productivity of excavator being used that is Excavator Hitachi EX 1100 with 5.4 m3 bucket capacity, can be optimized. Especially from the view of drilling and blasting efficiency by modifying blasting geometry and explosive usage to optimize fragmentation to the productivity of excavator being used. Modification that performed is eliminate the sub drilling and change the explosives loading system from coloumn loading to deck loading (include amount of explosives and detonator being used). Based on result of modification, achieve decreasing of boulder percentage as much as 50.25% that is from 9.71% to 4.83% and increasing of excavator productivity up to 36.10% from 1,479 ton/hour to 2,013 ton/hour as well as decreasing blasting cost up to 17.18% from Rp 3,456/ton to Rp 2,862/ton.
%U http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=2569
%R doi:10.18517/ijaseit.7.5.2569
%J International Journal on Advanced Science, Engineering and Information Technology
%V 7
%N 5
%@ 2088-5334

IEEE

Muhammad Taufik Toha,Bochori Bochori and Waluyo Waluyo,"Blasting Design Without Subdrilling on Jointed Limestone to Optimize Fragmentation and Blasting Cost," International Journal on Advanced Science, Engineering and Information Technology, vol. 7, no. 5, pp. 1920-1926, 2017. [Online]. Available: http://dx.doi.org/10.18517/ijaseit.7.5.2569.

RefMan/ProCite (RIS)

TY  - JOUR
AU  - Toha, Muhammad Taufik
AU  - Bochori, Bochori
AU  - Waluyo, Waluyo
PY  - 2017
TI  - Blasting Design Without Subdrilling on Jointed Limestone to Optimize Fragmentation and Blasting Cost
JF  - International Journal on Advanced Science, Engineering and Information Technology; Vol. 7 (2017) No. 5
Y2  - 2017
SP  - 1920
EP  - 1926
SN  - 2088-5334
PB  - INSIGHT - Indonesian Society for Knowledge and Human Development
KW  - blasting design; jointed limestone; subdrilling; drilling and blasting efficiency.
N2  - Bench blasting operation on limestone opencast mining at PT. Semen Padang (Persero), Indonesia performed by electric blasting using coloumn loading system. Limestone deposit consist of three type of rock characteritics that are hard limestone, sugary limestone, and jointed limestone. In general, a good blasting design should implementing subdrilling to avoid toe. In this case of study the subdrilling is not need due to the present of many cracks caused by basalt intrusion. Blasting geometry that applied to blast the jointed limestone resulting blasting fragmentation that commonly relatively small in size (<60 cm) but still has some boulders (>60 cm) that caused by coloumn loading system where energy was concentrated in the bottom. Based on field observation of limestone blasting operation and productivity of excavator being used that is Excavator Hitachi EX 1100 with 5.4 m3 bucket capacity, can be optimized. Especially from the view of drilling and blasting efficiency by modifying blasting geometry and explosive usage to optimize fragmentation to the productivity of excavator being used. Modification that performed is eliminate the sub drilling and change the explosives loading system from coloumn loading to deck loading (include amount of explosives and detonator being used). Based on result of modification, achieve decreasing of boulder percentage as much as 50.25% that is from 9.71% to 4.83% and increasing of excavator productivity up to 36.10% from 1,479 ton/hour to 2,013 ton/hour as well as decreasing blasting cost up to 17.18% from Rp 3,456/ton to Rp 2,862/ton.
UR  - http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=2569
DO  - 10.18517/ijaseit.7.5.2569

RefWorks

RT Journal Article
ID 2569
A1 Toha, Muhammad Taufik
A1 Bochori, Bochori
A1 Waluyo, Waluyo
T1 Blasting Design Without Subdrilling on Jointed Limestone to Optimize Fragmentation and Blasting Cost
JF International Journal on Advanced Science, Engineering and Information Technology
VO 7
IS 5
YR 2017
SP 1920
OP 1926
SN 2088-5334
PB INSIGHT - Indonesian Society for Knowledge and Human Development
K1 blasting design; jointed limestone; subdrilling; drilling and blasting efficiency.
AB Bench blasting operation on limestone opencast mining at PT. Semen Padang (Persero), Indonesia performed by electric blasting using coloumn loading system. Limestone deposit consist of three type of rock characteritics that are hard limestone, sugary limestone, and jointed limestone. In general, a good blasting design should implementing subdrilling to avoid toe. In this case of study the subdrilling is not need due to the present of many cracks caused by basalt intrusion. Blasting geometry that applied to blast the jointed limestone resulting blasting fragmentation that commonly relatively small in size (<60 cm) but still has some boulders (>60 cm) that caused by coloumn loading system where energy was concentrated in the bottom. Based on field observation of limestone blasting operation and productivity of excavator being used that is Excavator Hitachi EX 1100 with 5.4 m3 bucket capacity, can be optimized. Especially from the view of drilling and blasting efficiency by modifying blasting geometry and explosive usage to optimize fragmentation to the productivity of excavator being used. Modification that performed is eliminate the sub drilling and change the explosives loading system from coloumn loading to deck loading (include amount of explosives and detonator being used). Based on result of modification, achieve decreasing of boulder percentage as much as 50.25% that is from 9.71% to 4.83% and increasing of excavator productivity up to 36.10% from 1,479 ton/hour to 2,013 ton/hour as well as decreasing blasting cost up to 17.18% from Rp 3,456/ton to Rp 2,862/ton.
LK http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=2569
DO  - 10.18517/ijaseit.7.5.2569