<mets:mets xsi:schemaLocation="http://www.loc.gov/METS/ http://www.loc.gov/standards/mets/mets.xsd http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-3.xsd" OBJID="eprint_42765" LABEL="Eprints Item" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mets="http://www.loc.gov/METS/"><mets:metsHdr CREATEDATE="2026-05-24T21:27:00Z"><mets:agent TYPE="ORGANIZATION" ROLE="CUSTODIAN"><mets:name>Repository Universitas Negeri Padang</mets:name></mets:agent></mets:metsHdr><mets:dmdSec ID="DMD_eprint_42765_mods"><mets:mdWrap MDTYPE="MODS"><mets:xmlData><mods:titleInfo><mods:title>Kajian Teknis Penentuan Geometri Peledakan untuk&#13;
Mengoptimalisasikan Pencapian Hasil Peledakan CV.&#13;
Tekad Jaya, Desa Lareh Sago Halaban, Kabupaten&#13;
50 Kota, Sumatera Barat.</mods:title></mods:titleInfo><mods:name type="personal"><mods:namePart type="given">Andre</mods:namePart><mods:namePart type="family">Tri Wahyudi</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:abstract>Penambangan Batu Gamping di CV. Tekad Jaya dengan sistem tambang&#13;
terbuka (surface mining) dengan metoda penambangan Quarry. Adapun&#13;
persentase fragmentasi hasil peledakan berukuran boulder yang dihasilkan saat ini&#13;
dilapangan yaitu ± 35 % akibatnya diggability alat gali muat tidak maksimal.&#13;
Penelitian ini bertujuan untuk merancang geometri peledakan yang baru untuk&#13;
mendapatkan hasil fragmentasi yang optimal sehingga hasil diggability menjadi&#13;
optimal. Rekomendasi geometri peledakan yang menggunakan metode penlitian&#13;
bedasarkan teori R.L. Ash dan C.J. Konya dan dari salah satu rancangan usulan&#13;
geometri peledakan yang bagus akan diterapkan di lapangan sehingga didapatkan&#13;
rancangan geometri peledakan yang optimum dari salah satu rancangan geometri&#13;
peledakan tersebut untuk bisa diterapkan kedepannya bagi perusahaan. Dasar hasil&#13;
penerapan di lapangan terhadap salah satu rancangan usulan geometri peledakan&#13;
yaitu: burden: 1,9 m , spasi: 1,9 m, stemming: 1,4 m, subdrilling: 0,3 m, tinggi&#13;
jenjang: 5 m, kedalaman lubang ledak 5,5 m, powder colomn: 4,1 m, dan powder&#13;
factor: 0,8 kg/m3 dimana fragmentasi ukuran boulder yang dihasilkan dari analisis&#13;
sowftware split desktop sebesar 3,17 %. Adapun digging time yang dihasilkan&#13;
9,63 detik</mods:abstract><mods:classification authority="lcc">TN Mining engineering. Metallurgy</mods:classification><mods:originInfo><mods:dateIssued encoding="iso8601">2020-11</mods:dateIssued></mods:originInfo><mods:originInfo><mods:publisher>Universitas Negeri Padang;Teknik Pertambangan FT UNP</mods:publisher></mods:originInfo><mods:genre>Thesis</mods:genre></mets:xmlData></mets:mdWrap></mets:dmdSec><mets:amdSec ID="TMD_eprint_42765"><mets:rightsMD ID="rights_eprint_42765_mods"><mets:mdWrap MDTYPE="MODS"><mets:xmlData><mods:useAndReproduction>
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