KAJIAN PRODUKSI DAN BIAYA PENAMBANGAN BATUAN ANDESIT DI PT. SUMBER GUNUNG MAJU BRAVO 10 KABUPATEN SERANG PROVINSI BANTEN

HASYIM, MUHAMMAD RAFLY REZKYAWAN and Toha, M. Taufik and Amin, Muhammad (2020) KAJIAN PRODUKSI DAN BIAYA PENAMBANGAN BATUAN ANDESIT DI PT. SUMBER GUNUNG MAJU BRAVO 10 KABUPATEN SERANG PROVINSI BANTEN. Undergraduate thesis, Sriwijaya University.

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Abstract

Demolition of Andesite stones at PT Sumber Gunung Maju Bravo 10 is carried out by drilling and blasting. The drill equipment used at PT Sumber Gunung Maju Bravo 10 operates 2 drill tools with the type of Marton Junjin JD-800 totaling 4 and Furukawa 910-DS totaling 1 where both have hourly production of 1,603.05 BCM / Hour for 5 drilling tools HCR and 143,024.22 BCM / Month. Blasting in Bravo 10 PT. Sumber Gunung Maju uses an explosive hole with a diameter of 3 inches with a plan burden of 2.5 meters and spacing ranging from 2.7 meters to 3 meters. To dismantle one BCM requires explosives as much as 0.16 kg. Kobelco SK-330 backhoe excavator which has a bucket size of 1.4 m3 which produces an average cycle time data of 23.31 seconds, heaped bucket capacity of 1.4 m3, bucket factor 0.80, work efficiency of 70%, swell factor 0.80 and rock density 2.10 tons / m3. SK-330 Backhoe Excavator has hourly production of 1,071.86 tons / Hour for 9 SK-330 Backhoe Excavators of 247,920.6 tons / month. The Hino Ranger 500 Dump Truck transports can be in the form of average cycle time data of 21.22 minutes, the amount of filling 8 times, bucket capacity of 1.4 m3, bucket fill factor of 0.80, swell factor of 0.80 and work efficiency of 70% . Hino Ranger 500 dump trucks have an hourly production of 752.3 tons / hour for 35 Hino Ranger 500 dump trucks and 173,826.3 tons / month. The mining production cost is IDR 12.108.505,63 / hour and IDR 3.644.068.705,6 / month. The difference in costs amounting to IDR 28.636,41 / hour and IDR 9.071.019,9 / month after repairs to the work efficiency of the equipment from the start, the mining costs before repair are IDR 12.137.142,04 / hour and IDR 3.653.139.725,5 / Month and mining equipment production costs of IDR 8.272,94 / ton to IDR 7.804,93 / ton there is a difference in costs of IDR 468,01 / ton.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	andesite, cost, cost study
Subjects:	T Technology > TN Mining engineering. Metallurgy > TN950-997 Building and ornamental stones
Divisions:	03-Faculty of Engineering > 31201-Mining Engineering (S1)
Depositing User:	Users 10075 not found.
Date Deposited:	26 Jan 2021 03:48
Last Modified:	26 Jan 2021 03:48
URI:	http://repository.unsri.ac.id/id/eprint/40803

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