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        <dc:title>Evaluasi Teknis Geometri Peledakan terhadap Fragmentasi Batu Gamping di PT. Indocement Tunggal Prakarsa Tbk Desa&#13;
Palimanan Barat, Kecamatan Gempol, Kabupaten Cirebon, Jawa Bara</dc:title>
        <dc:creator>Pasaribu, Putri</dc:creator>
        <dc:subject>T Technology (General)</dc:subject>
        <dc:subject>TN Mining engineering. Metallurgy</dc:subject>
        <dc:description>PT. Indocement Tunggal Prakarsa Tbk is a producer&#13;
engaged in limestone mining, which is located in the village of West&#13;
Palimanan, Gempol District, Cirebon Regency, West Java. The&#13;
mining method used by PT. Indocement Tunggal Prakarsa Tbk is an&#13;
open pit mining system, using the Quarry mining method. From the&#13;
results of the author's observations at PT. Indocement Tunggal&#13;
Prakarsa Tbk saw a lot of fragmentation resulting from blasting&#13;
which resulted in boulder. The size of the boulder based on company&#13;
standards is 50 cm with the percentage of rock fragmentation&#13;
resulting from blasting 50 cm at PT. Indocement Tunggal Prakarsa&#13;
Tbk is still relatively high at around ± 30%, while the fragmentation&#13;
expected by PT. Indocement Tunggal Prakarsa Tbk &lt; 50 cm with a&#13;
blast yield of 80%. This study aims to design the optimum blasting&#13;
geometry to reduce the percentage of boulder so that the jaw crusher&#13;
specifications are met and do not increase the cost of renting the&#13;
breaker unit again. The research method is carried out by providing&#13;
the results of the analysis of the Kuz-Ram method. Then one of the&#13;
proposed geometries is chosen which is better while the proposed&#13;
geometry is given, namely Burden 2 m, Spacing 2.5 m, Stemming&#13;
2.2 m, Subdrilling 0.19 m, Level height 5,8 m, Depth of the blast&#13;
hole 6.68 m, Powder column 4.4 m, Powder factor 0.59, Kuzram&#13;
Fragmentation 20 %.</dc:description>
        <dc:date>2022-08</dc:date>
        <dc:type>Thesis</dc:type>
        <dc:type>NonPeerReviewed</dc:type>
        <dc:format>text</dc:format>
        <dc:language>en</dc:language>
        <dc:identifier>https://repository.unp.ac.id/id/eprint/43117/1/final_B1_11_PUTRI_PASARIBU_16137075_4461_2022.pdf</dc:identifier>
        <dc:identifier>  Pasaribu, Putri  (2022) Evaluasi Teknis Geometri Peledakan terhadap Fragmentasi Batu Gamping di PT. Indocement Tunggal Prakarsa Tbk Desa Palimanan Barat, Kecamatan Gempol, Kabupaten Cirebon, Jawa Bara.  Bachelor/Skripsi thesis, Universitas Negeri padang.   </dc:identifier></oai_dc:dc>
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