KOMMA, BENTROVOLTA (2016) KAJIAN TEKNIS PENINGKATAN PRODUKSI ALAT GALI-MUAT & ALAT ANGKUT PADA KEGIATAN PENGUPASAN TOPSOIL DI STOCKPILE PT. KALTIM PRIMA COAL KALIMANTAN TIMUR. Other thesis, UPN "VETERAN" YOGYAKARTA.
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Abstract
PT. Kaltim Prima Coal (KPC) adalah perusahaan swasta yang bergerak di
bidang pertambangan batubara yang terletak di Kecamatan Sangatta, Kabupaten
Kutai Timur, Provinsi Kalimantan Timur. Sistem penambangan yang digunakan
oleh PT. KPC adalah sistem tambang terbuka (surface mining).
Kegiatan pengupasan lapisan tanah penutup (topsoil) pada saat ini
dilakukan di stockpile pit Bendili. Material hasil pengupasan topsoil tersebut
diangkut menuju ke kancil dump dengan menggunakan 1 unit alat muat yaitu
backhoe Komatsu PC-750 dan dikombinasikan dengan 6 alat angkut articulated
dump truck yaitu : 2 unit Volvo A35E/A35F, 2 unit hungry board A35E/A35F
dan 2 unit CAT 740. Jarak angkut terjauh dari stockpile menuju ke kancil dump ±
1.400 meter.
Kegiatan Pengupasan topsoil PT. KPC di pit Bendili mengunakan
rangkaian kerja alat gali-muat (backhoe) dan alat angkut (articulated dump truck)
untuk memindahkan topsoil dari stockpile menuju kancil dump dengan target
produksi sebesar 211.000 BCM/bulan (219.792 LCM/bulan). Produksi nyata
pengupasan topsoil saat ini hanya 206.625 BCM/bulan (215.234,37 LCM/bulan),
sehingga masih kekurangan produksi sebesar 4.375,32 BCM/bulan (4.557,63
LCM/bulan).
Upaya yang dilakukan agar target produksi dapat tercapai dengan
melakukan perbaikan jalan di stockpile yang rusak dengan cara pengerasan dan
pemadatan. Upaya lainnya yaitu dengan melakukan peningkatan terhadap waktu
kerja efektif dengan mengurangi hambatan-hambatan yang dapat di hindari
sehingga waktu kerja efektif meningkat dan efisiensi kerja alat gali-muat dan alat
angkut meningkat pula. Setelah dilakukan perhitungan produksi pengupasan
topsoil meningkat untuk alat gali-muat menjadi 274.802,35 BCM/bulan
(286.252,45 LCM/bulan) dan alat angkut menjadi 209.425,19 BCM/bulan
(218.151,34 LCM/bulan), sehingga target produksi yang diinginkan perusahaan
PT. KPC sebesar 211.000 BCM/bulan (219.792 LCM/bulan) belum tercapai.
Upaya selanjutnya dengan penambahan jumlah curah dari 4 menjadi 5 curah
untuk articulated dump truck yang baknya masih memungkinkan. Perkiraan
perhitungan produksi untuk alat angkut setelah penambahan jumlah curah yaitu
233.968,53 BCM/bulan (259.965,03 LCM/bulan), sehingga target produksi
tercapai.
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ABSTRACT
PT. Kaltim Prima Coal (KPC) is a privately held company engaged in the
mining of coal in Sangatta, East Kutai Regency, East Kalimantan. The system
used by PT KPC is an open mining (surface mining).
The activitiy of stripping soil cover (topsoil) at present is done in Bendili
pit stockpile. Results of the topsoil stripping material transported headed to the
kancil dump by using the unit load tool i.e. backhoe Komatsu PC-750 and
combined with 6 tool Articulated dump truck transport: 2 units of Volvo
A35E/A35F, 2 units of Hungry board A35E/A35F and 2 units of CAT 740. The
farthest transport distance from the stockpile transport heading to the kancil dump
is about 1400 metres.
Topsoil stripping activity of PT KPC in Bendili’s pit uses dig-fit series
work tools (backhoe) and transportation service (articulated dump truck) to move
the topsoil from the stockpile to the Kancil dump with production targets is
211.000 BCM/month (219.792 LCM/month). Topsoil striping production is
currently only 206.625 BCM/month (215.234,37 LCM/month), so there still
4.375,32 BCM/month (4.557,63 LCM,/month) lack of production.
Efforts that have been done in order that the production targets can be
achieved by doing roads repair in the stockpile, by compaction and compulsion of
road. Other efforts by increased the effective working time by reduce the obstacles
that affect the production in order to increased the effective working time so the
efficiency of the dig-fit series work tools and the transportation tools increased as
well. After calculation the topsoil stripping dig-fit tool increased to 274.802,35
BCM/month (286.252,45 LCM/month) and transportation tools reach 208.425,19
BCM/month (218.151,34 LCM/month), so the production targets at the disposal
of the company of 211.000 BCM/month (219.792 LCM/month) has not reached
yet. The next effort by addition of precipitation amount to articulated dump truck
that the vessel are still possible to be added. Approximate calculation of
transportation tools production after addition of the amount of precipitation is
233.968,53 BCM/month (259.965,03 LCM/month), so the production targets are
achieved.
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| Item Type: | Thesis (Other) |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Sarimin Sarimin |
| Date Deposited: | 10 May 2016 02:35 |
| Last Modified: | 30 May 2024 06:42 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/483 |
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