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All Journal Jurnal Penelitian Enjiniring Fakultas Teknik Unhas
Rizki Amalia
Departemen Teknik Pertambangan, Fakultas Teknik, Universitas Hasanuddin
Engineering

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Journal : Jurnal Penelitian Enjiniring Fakultas Teknik Unhas

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Perencanaan Disposal Semi Induced Flow dan Finger Flow di PT Vale Indonesia Tbk, Kabupaten Luwu Timur, Provinsi Sulawesi Selatan Rizki Amalia; Dzul Fajrin; Aryanti Virtanti Anas; Hasliana Alimuddin
Jurnal Penelitian Enjiniring Vol 23 No 2 (2019)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (470.131 KB) | DOI: 10.25042/jpe.112019.11

Abstract

Disposal Planning of Semi Induced Flow and Finger Flow in PT Vale Indonesia Tbk, East Luwu Regency, South Sulawesi Province). PT Vale Indonesia Tbk produces sizable nickel ore, which is an average of 75,000 tons per year and the overburden is around four times the amount of nickel ore production, thus requiring good disposal planning.Disposal planning includes disposal design, allocation of the number of dozers, disposal life length, and disposal costs. The research locations are Watulabu 16C DP and Watulabu 19 DP in West Block Area and Nickel Hill 15 DP and Nayoko 01 DP in East Block Area. Watulabu 16C DP and Nickel Hill 15 DP are semi-induced disposal, while Watulabu 19 DP and Nayoko 01 DP are disposal finger flow. Each disposal has two units dozer. The dozers used are dozer D8R Caterpillar. Disposal planning was made using Maptek Vulcan and Microsoft Excel software. Based on the results of the research, the disposal design of Watulabu 16C DP has a surface area of ​​72,229.40 m2 and a volume of 125,959.92 m3, Nickel Hill 15 DP has a surface area of ​​92,375.68 m2 and a volume of 128,344.04 m3, Watulabu 19 DP has a surface area of ​​129,061.97 m2 and volume of 775,396.21 m3, and Nayoko 01 DP has a surface area of ​​227,318.16 m2 and volume of 1,270,176.94 m3. The disposal life length of Watulabu 16C DP is 1.5 weeks (11 days), Nickel Hill 15 DP is 1.4 weeks (10 days), Watulabu 19 DP is 7.5 weeks (53 days), and Nayoko 01 DP is 11.2 weeks (79 days). The disposal cost of Watulabu 16C DP is $51,841.49, Nickel Hill 15 DP is $138,061.15, Watulabu 19 DP is $370,924.26, and Nayoko 01 DP is $957,625.14.
Estimasi Biaya Disposal PET 97 DP Menggunakan Metode High and Low Di Pt Vale Indonesia Tbk, Kabupaten Luwu Timur, Sulawesi Selatan Muhammad Abdi Dzil Ikram; Aryanti Virtanti Anas; Rizki Amalia
Jurnal Penelitian Enjiniring Vol 25 No 1 (2021)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jpe.052021.08

Abstract

Abstrak Disposal area merupakan sebuah lokasi pada sebuah tambang terbuka yang digunakan untuk menyimpan sementara waste rock atau overburden yang dihasilkan selama proses pengupasan. Di PT Vale Indonesia terdapat tiga tipe disposal yang digunakan, yaitu induce flow, semi-induced flow, dan finger flow. Penelitian dilakukan pada disposal PET 97 DP dengan jenis disposal semi-induce flow. Disposal ini dikerjakan menggunakan dua unit dozer CAT D8R sebagai alat utama, dan civil material serta material pembatuan untuk meningkatkan stabilitas disposal. Disposal PET 97 DP termasuk jenis disposal semi-induced flow dengan empat dumping point dan memiliki tonase sebesar 919.484,363 ton dengan total kebutuhan civil material sebesar 321.819,527 ton. Estimasi biaya civil material dilakukan menggunakan metode high-low dan menghasilkan total estimasi biaya mencapai $1.186.777,53. Disposal PET 97 DP diperkirakan dapat digunakan hingga 12 minggu dengan target produksi 75.000 ton/minggu dengan menggunakan dua unit dozer. Total biaya yang dibutuhkan dalam pengoperasian disposal PET 97 DP diperkirakan mencapai $1.450.513,50. Abstract Disposal area is a location in an open pit mine that were used to temporarily keep waste rock or overburden that were produced during the stripping process. In PT Vale Indonesia, Tbk there were three types of disposal that were used, those are induce flow, semi-induced flow, and finger flow. This research was done at PET 97 DP disposal with the type of the disposal being semi-induced flow. This disposal was done using two units of CAT D8R dozers as the main equipment and civil material as the petrification materials to increase the stability of the disposal. PET 97 DP disposal is a semi-induced flow disposal with four dumping points and capacity of 919.484,363 ton with the needs of 321.819,527 ton of civil materials. Civil material cost was estimated using high-low method with the total cost was $1.186.777,53. PET 97 DP disposal was expected to be used for 12 weeks with production target of 75.000 ton/week using two units of dozers. The total operation cost that was needed for PET 97 DP disposal was estimated to reach $1.450.513,50.
Co-Authors Aryanti Virtanti Anas Dzul Fajrin Hasliana Alimuddin Muhammad Abdi Dzil Ikram