YUDANI, WANDA (2016) RANCANGAN SISTEM PENYALIRAN TAMBANG TERBUKA SITE SEKAYAN MINE OPERATION TAHUN 2015 DI PT. PESONA KHATULISTIWA NUSANTARA KECAMATAN TANJUNG SELOR KABUPATEN BULUNGAN PROVINSI KALIMANTAN UTARA. Other thesis, UPN 'VETERAN" YOGYAKARTA.
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Abstract
PT. Pesona Khatulistiwa Nusantara in sekayan block, administratively
located in the district of Tanjung Selor and east tanjung palas, bulungan, North
Borneo. The design of the system implemented for handling water problems, is a
combination of mine drainage and mine dewatering. Based on the analysis of
rainfall data, year 2003 – 2012 obtained rainfall plan is 110,31 mm/day , Rainfall
intensity 38,24 mm/hour with a return period rainfall is 3 years and hydrology risk
by 99.72%. Daerah tangkapan hujan pada lokasi penelitian dibagi menjadi 5
daerah tangkapan h area in sites divided into 5 catchment area, they are DTH I =
0,4 km
2
, DTH II = 0,62 km
2
, DTH III= 0,089 km
2
, Pit A= 0,64 km
2
, Pit B= 0,41
km
2
, with each water flow DTH I (West Pit A) around 3,83 m
3
/sec, DTH II (South
Pit A) around 4,61 m
3
/ sec, DTH III (South West Pit B) around 0,57 m
3
/sec, Pit A
around 6,12 m
3
/sec, Pit B around 3,92 m
3
/sec
To prevent that water does not enter the mining area, then made an open
channel around mine openings and open channel for pump flow. Open channel
dimensions are:
A. Channel I : B = 2 m; b = 1 m; d = 0,9 m; h = 1 m; a = 1 m ; B. Channel II : B =
3,3 m; b = 1,7 m; d = 1,4 m; h = 1,7 m; a = 1,6 m ; C. Channel III : B = 1,1 m; b =
0,5 m; d = 0,49 m; h = 0,5 m; a = 0,5 m. D. Channel IV ; B = 1,6 m; b = 0,8 m ; d
= 0,68 m ; h = 0,8 m; a = 0,8 m
The sump sizes For each dimension ; Pit A : Sump Long = 100 m ; Sump
Wide = 76 m ; Sump Depth = 5, Pit B : Sump Long =100 ; Sump Wide = 46 m ;
Sump Depth = 5 m, DTH I (mine out); Sump Long = 100 m; Sump Wide = 85 m ;
Sump Depth = 5 m. The recomendation is to use 3 pumps Multiflow-420. The
dimension of the Settling Pond is : Pond’s Wide = 42 m, Pond’s Long = 56 m,
Pond’s Depth = 5 m, Partition’s wide (a) = 5 m, Partition’s long (a) = 40 m,
Partition’s Depth (a) = 5 m, Partition’s wide (b) = 5 m, Partition’s long (b)= 40 m,
Partition’s Depth b = 5 m. Settling Pond’s wide around 1758 m
2
, volume = 8790
m
3
, The work of mud digging is once per 12 months
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | T Technology > TN Mining engineering. Metallurgy |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Darsini Darsini |
| Date Deposited: | 16 May 2016 06:45 |
| Last Modified: | 16 May 2016 06:45 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/983 |
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