PERANCANGAN MINE SEQUENCE PADA PENAMBANGAN BIJIH BESI PT ADIDAYA TANGGUH, JOBSITE TALIABU, KAB. PULAU TALIABU, PROVINSI MALUKU UTARA

FARIDA, ANTI KHUSNUL (2022) PERANCANGAN MINE SEQUENCE PADA PENAMBANGAN BIJIH BESI PT ADIDAYA TANGGUH, JOBSITE TALIABU, KAB. PULAU TALIABU, PROVINSI MALUKU UTARA. Other thesis, UPN 'Veteran" Yogyakarta.

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Abstract

RINGKASAN
PT. Adidaya Tangguh (PT ADT) merupakan perusahaan penambangan
bijih besi yang berlokasi di di Kecamatan Lede, Taliabu Barat, Taliabu Barat Laut
dan Taliabu Utara, Kabupaten Pulau Taliabu, Provinsi Maluku Utara. Sistem
penambangan yang digunakan saat ini yaitu sistem tambang terbuka dengan
metode open cast miningmenuju ke open pit mining. PT ADT memiliki target
produksi sebesar 3.000.000 ton/tahun bijih besi dengan nilai stripping ratio
maksimal 1 : 2. Endapan bijih besi di daerah prospek pada pit memiliki kadar Fe
total berkisar 40% - 50%. COG yang ditetapkan oleh perusahaan sebesar > 20%, sehingga COG tidak diperhitungkan dalam penambangan karena seluruh kadar
dari endapan bijih besi ini dapat ditambang. Penelitian ini bertujuan untuk
membuat suatu rancangan teknis sequence penambangan bijih besi selama satu
tahun yang dibagi ke dalam rancangan triwulan yang meliputi rancangan
kemajuan penambangan, rancangan waste dump, dan rancangan kebutuhan alat
mekanis.Metodelogi penelitian meliputi studi pustaka serta melakukan orientasi dan
observasi mengenai permasalahan yang ada di lapangan. Data yang dibutuhkan
dalam penelitian ini berupa data primer dan sekunder. Data yang telah didapat
kemudian dilakukan pengolahan dan dianalisis sehingga menghasilkan suatu
kesimpulan berupa rancangan teknis penambangan yang memenuhi target
produksi bijih besi sebesar 3.000.000 ton/tahun. Rancangan kemajuan penambangan dibuat didasarkan pada target
produksi yang telah ditentukan perusahaan. Hasil reserve berdasarkan desain pada
tahun 2022 didapatkan volume overburden sebesar 1.555.239 BCM, bijih besi
sebesar 3.033.202 ton dengan SR = 0,57 : 1, pada triwulan I didapatkan volume
overburden sebesar 338.126 BCM, bijih besi sebesar 1.109.779 ton dengan SR =
0,38 : 1, pada triwulan II didapatkan volume overburden sebesar 429.081 BCM, batubara sebesar 513.783 ton dengan SR = 0,86 : 1, pada triwulan III didapatkan
volume overburden sebesar 502.838 BCM, bijih besi sebesar 300.594 ton dengan
SR = 1,67 : 1, dan pada triwulan IV didapatkan volume overburden sebesar
285.194 BCM, bijih besi sebesar 1.109.046 ton dengan SR = 0,33: 1. Rancangan
waste dump terletak 500 m di sebelah selatan dari pit. Total kapasitas waste dump
berdasarkan desain sebesar 2.664.888,96 CCM dengan luas 1,04 Ha. Berdasarkan
desain dengan jenis timbunan yang diterapkan adalah Valley Fill. Jenis timbunan
Valley Fill dipilih karena topografi di daerah penelitian atau crest dump karena
pada daerah penambangan mempunyai topografi yang curam, berbukit dan
berlembah. Jenis alat muat yang digunakan dalam penambangan adalah Sany
SY365H yang berpasangan dengan alat angkut Sany SKT90S. Kebutuhan alat
pada tiap triwulan mengalami perubahan yang diakibatkan perbedaan produksi
overburden dan jarak angkut menuju waste dump berdasarkan rancangan yang
dibuat.
SUMMARY
PT Adidaya Tangguh (PT ADT) is an iron ore mining company located in
Lede District, West Taliabu, Northwest Taliabu and North Taliabu, Taliabu
Island Regency, North Maluku Province. The mining system used today is an open
mining system with the open cast mining method leading to open pit mining. PT
ADT has a production target of 3,000,000 tons/year of iron ore with a maximum
stripping ratio value of 1: 2. Iron ore deposits in the prospect area in the pit have
a total Fe content ranging from 40% - 50%. COG set by the company is >20%, so
COG is not taken into account in mining because all levels of this iron ore deposit
can be mined. This study aims to make a technical design of the iron ore mining
sequence for one year which is divided into a quarterly design which includes the
design of mining progress, the design of the waste dump, and the design of the
need for mechanical equipment. The research methodology includes literature study as well as conducting
orientation and observations regarding the problems that exist in the field. The
data needed in this study are primary and secondary data. The data that has been
obtained is then processed and analyzed to produce a conclusion in the form of a
mining technical design that meets the iron ore production target of 3,000,000
tons/year. Mining progress plans are made based on production targets that have
been determined by the company. The results of the reserve based on the design in
2022 obtained an overburden volume of 1,555,239 BCM, iron ore of 3,033,202
tons with SR = 0.57: 1, in the first quarter an overburden volume of 338,126 BCM
was obtained, iron ore of 1,109,779 tons with SR = 0.38 : 1, in the second quarter
the overburden volume was 429,081 BCM, coal was 513,783 tons with SR = 0.86 :
1, in the third quarter the overburden volume was 502,838 BCM, iron ore was
300,594 tons with SR = 1 ,67 : 1, and in the fourth quarter the volume of
overburden is 285,194 BCM, iron ore is 1,109,046 tons with SR = 0.33: 1. The
waste dump design is located 500 m south of the pit. The total capacity of the
waste dump based on the design is 2,664,888.96 CCM with an area of 1.04
Ha. Based on the design, the type of embankment applied is Valley Fill. The
Valley Fill embankment type was chosen because of the topography in the study
area or a crest dump because the mining area has a steep, hilly and valley
topography. The type of loading equipment used in mining is the Sany SY365H
which is paired with the Sany SKT90S conveyance. The need for equipment
changes every quarter due to dif erences in overburden production and
transportation distances to the waste dump based on the design made.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Rancangan kemajuan penambangan dibuat didasarkan pada target produksi yang telah ditentukan perusahaan.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User:	Eko Yuli
Date Deposited:	08 Jul 2022 06:53
Last Modified:	08 Jul 2022 06:57
URI:	http://eprints.upnyk.ac.id/id/eprint/30341

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