FATHURAHMAN, HERI (2016) ESTIMASI CADANGAN BATUBARA DENGAN METODE CROSS SECTION DI PT. BARAMEGA INDONESIA SURYA ALAM KECAMATAN KELUMPANG HILIR KABUPATEN KOTABARU KALIMANTAN SELATAN. Other thesis, UPN "VETERAN" YOGYAKARTA.
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Abstract
Daerah Rencana Penambangan PT. Baramega Indonesia Surya Alam yang
dijadikan daerah penelitian adalah Wilayah Izin Usaha Pertambangan Eksplorasi
seluas 104 Ha. Metode yang digunakan untuk mengestimasi cadangan batubara di
daerah penelitian adalah metode Cross Section Rule of Gradual Change dan Rule
of Nearest Point. Prinsip dari metode Cross Section Rule of Gradual Change,
yaitu dengan menghubungkan titik pengamatan terluar. Secara numerik
perubahan kondisi endapan dianggap sama sepanjang garis lurus tehadap
penghubung 2 (dua) titik conto. Sedangkan pada metode Cross Section Rule of
Nearest Point, yaitu berpedoman pada titik terdekat, dengan membuat batas
terluar endapan secara linear, panjang garis linear sama dengan batas blok,
setengah jarak antara dua titik.
Berdasarkan hasil estimasi yang dilakukan menggunakan metode Cross
Section Rule of Gradual Change dengan batasan stripping ratio 5,02 : 1,
overall slope 40
o
, ketebalan batubara 1,26 – 2,16 meter, maka diperoleh tonase
batubara 1.407.768,57 ton dengan volume lapisan penutup 7.071.331,90 BCM.
Hasil estimasi cadangan endapan batubara dengan metode Cross Section Rule of
Nearest Point dengan batasan stripping ratio 5,07 : 1, overall slope angle 40
o
,
didapat hasil sebesar 1.392.768,57 ton dengan volume lapisan penutup sebesar
7.071.331,90 BCM.
Adanya perbedaan hasil dari kedua pedoman maka disarankan hasil estimasi
terkecil yang digunakan sebagai dasar perhitungan produksi. Diharapkan
cadangan tertambang kenyataan nantinya tidak lebih kecil dari hasil estimasi
cadangan batubara.
Regional Plan of Mining PT. Baramega Indonesia Surya Alam who made the
study area is the Regional Mining Permit area of 104 Ha. The method used to
estimate the coal reserves in the area of research is the method of Cross Section
Rule of Gradual Change and the Rule of Nearest Point. The principle of the
method Cross Section Rule of Gradual Change, by connecting the outermost
points of observation. Numerical changes in sediment conditions being equal
tehadap along a straight line connecting two points samples. While the method of
Cross Section Rule of Nearest Point, which is based on the closest point, by
making the outer boundary precipitate a linear, linear line length equal to the
block boundary, half the distance between two points.
Based on estimates made using the Cross Section Rule of Gradual Change
with restrictions stripping ratio 5.02: 1, overall slope 40
o
, coal thickness from 1.26
to 2.16 meters, the tonnage of coal obtained 1.407.768,57 tons in volume of
overburden 7.071.331,90 BCM. The results of the coal deposit with estimated
reserves Cross Section Rule method of Nearest Point with restrictions stripping
ratio of 5.07: 1, overall slope angle 40
o
, the result amounted to 1.392.768,57 tons
overburden volume of BCM.
The big difference in the results of both sets of guidelines it is recommended
that the smallest estimation results are used as a basis for the calculation of
production. Expected mineable reserves of fact will not be smaller than the
estimation of coal reserves.
| 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: | 13 May 2016 02:55 |
| Last Modified: | 13 May 2016 02:55 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/848 |
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