AL WAFI, IHSANUDDIN (2022) PEMILIHAN METODE PENAMBANGAN BAWAH TANAH DAN DESAIN STOPE PADA RENCANA PENAMBANGAN BIJIH EMAS PT. ANTAM TBK SITE ARINEM GARUT JAWA BARAT. Other thesis, UPN "Veteran" Yogyakarta.
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Abstract
v
RINGKASAN
PT. Antam Tbk adalah perusahaan yang bergerak pada bidang usaha
pertambangan emas di Indonesia yang telah selesai melakukan eksplorasi di daerah
Arinem, Papandayan, Kabupaten Garut, Provinsi Jawa Barat. Eksplorasi tersebut
mendapatkan potensi blok emas orebody Arinem dengan sumberdaya emas (Au)
sebesar 5.194.677 Ton. Blok tersebut rencananya akan ditambang dengan sistem
penambangan bawah tanah, karena daerah tersebut merupakan kawasan hutan
lindung.
Pemasalahan yang ditemui pada lokasi penelitian adalah belum ada metode
penambangan bawah tanah dan rancangan desain stope yang akan diaplikasikan,
sehingga penelitian ini bertujuan untuk memilih metode penambangan bawah dan
merancang desain stope penambangan, serta melakukan prediksi besar ELOS
(Equivalent Linear Overbreak and Slough).
Berdasarkan hasil penelitian yang telah dilakukan, metode penambangan
bawah tanah yang paling cocok diaplikasikan adalah metode cut and fill stoping,
dengan hasil rancangan desain stope berjumlah 257 stope, yang dibagi menjadi 20
level. Penentuan zona kestabilan mendapatkan keseluruhan Stope hanggingwall
berada pada zona stable. Stope footwall 255 stope pada zona stable, 2 stope pada
zona unsupported transition zone. Stope back 18 stope berada pada zona stable, 176
stope pada zona unsupported transition zone, 63 stope berada pada zona stable
with support. Keseluruhan Stope Ends berada pada zona stable. Prediksi ELOS
mendapatkan keseluruhan stope hanggingwall memiliki besar ELOS < 0,5 m,
sedangkan pada stope footwall 255 stope memiliki ELOS < 0,5 m, dan 2 stope
memiliki ELOS 0,5-1 m.vi
SUMMARY
PT. Antam Tbk is a company of gold mining business in Indonesia, which
has completed exploration in the Arinem area, Papandayan, Garut Regency, West
Java. The exploration obtained a potential block of gold Arinem orebody with gold
(Au) resources is 5,194,677 tons. The block is planned to be mined using an
underground mining system, because the area is a protected forest.
The problem of the research was no underground mining method and stope
design that will be applied, so this study aims to choose an underground mining
method that was suitable to applicated at the research location, and design a mining
stope, as well to predict ELOS (Equivalent Linear Overbreak and Slough) value.
Based on the results of the research, the most suitable underground mining
method to be applied is cut and fill stoping method, with the results of the stope
design being divided into 20 levels. Determination of the stability zone gets the
entire Hangingwall Stope in the stable zone. Footwall stope 255 stope in the stable
zone, 2 stope in the unsupported transition zone. Stope back 18 stope in the stable
zone, 176 stope in the unsupported transition zone, 63 stope in the stable with
support zone. All Stope Ends are in the stable zone. The ELOS prediction is that
the overall hangingwall stope has an ELOS of <0,5 m, while the footwall stope of
255 has an ELOS of <0,5 m, and 2 stopes have an ELOS of 0,5-1 m.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | METODE PENAMBANGAN BAWAH TANAH |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 27 Jan 2022 06:43 |
| Last Modified: | 28 Nov 2022 03:54 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/27999 |
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