Minescape Reserving and Scheduling Manual
May 5, 2017 | Author: regzaperdana | Category: N/A
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PT. BHAKTI ENERGI PERSADA
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Minescape Reserving and Scheduling Manual 1.
2.
Minescape Open Cut Coal 1.1.
Minescape blocking
1.2.
Projection solid with batter slope for reserves calculation
1.3.
Projection solid
1.4.
Reserves calculation
Excel or CSV Database 2.1.
Create reserves database in Excel or CSV file
2.2.
Create polygon database in Excel or CSV file
2.3.
Scheduling
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Minescape Open Cut Coal 1.1. Minescape blocking 1.
Buatlah poligon pit shell (batas-batas pit).
Open write design file blocks.
Click
Click
Create layer untuk rancangan pit baru: Pit00
Klik kanan
Click
Click
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Click
Attach design file subcrop lapisan batubara: subcrp_floor_update, layer SEAM1.
Click
Click
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Click
Untuk latihan, buatlah poligon pit shell pada daerah subcrop seam 1 dengan ukuran kira-kira 3×2 km.
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Tekan Ctrl+G untuk memunculkan grid. Grid akan berguna sebagai alat bantu dalam menentukan ukuran pit shell.
Click
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±3 km
±2 km
2.
Berikan tag design segment pada pit shell dengan memilih menu Strip Design>Tag Design Segments…
Click
3.
Buat side definition dengan mengklik kanan bagian Side Definition lalu pilih Create,,,.
Klik kanan
Click
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Contoh beberapa Side Definition: Side Definitions: HW63
ILLEG_HW
VERTICAL
Angles
Angles
Angles
If (label == „coal‟) then 70 else 63 endif
70
90
Offset
Offset
0
0
Offset If range(level, totroof+3, topo-1) then if range(level,-29.5,-30.5) then 5 elseif range(level,-9.5,-10.5) then 10 elseif range(level, 10.5,9.5) then 5 elseif range(level,30.5,29.5) then 10 elseif range(level,50.5,49.5) then 5 elseif range(level,70.5,69.5) then 10 else 0 endif else 0 endif
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Click Kemudian double click pit shell.
Click
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Buatlah tiga layer baru, yaitu untuk batter block (BB), batter block intersection (BB_Intersect) dan solid (BB_Solid).
Klik kanan
Click
Click
Click Click Lalu buat start line dan end line-nya.
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Buka menu Strip Design>Generate Strips… End line
Pit shell
Start line (garis dekat subcrop)
Click
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6.
MineScape Training
Buat batter strip dengan cara yang sama tetapi dengan start line parallel terhadap highwall dan dengan interior strips = vertikal. End line
Pit shell
Start line
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Click
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Buatlah perpotongan antar strip dengan block strip dengan memilih menu Strip Design>Strip Intersection…
Click Sembunyikan semua layer kecuali layer BB_intersect.
Click
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Click
Click
Click
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Gabungkan batter block yang berukuran kecil dengan batter block lain yang berada di dekatnya. Buka Minescape Explorer, User Commands – bbmerge.
Double click
Pilih batter block yang pertama.
Double click
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MineScape Training Pilih batter block yang ke-dua.
Double click
Masukkan nama batter block yang telah dimerger (pilih nama batter block pertama).
Click
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MineScape Training Hapus batter block ke-dua.
Click + [delete]
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1.2.
MineScape Training
Projection Solid with Batter Slope for Reserves Calculation
1. Buka menu Strip Design>Project Solids… 2. Masukkan nama batter block dalam kolom Block Names. 3. Masukkan nama layer BB_Solid.
4. Buatlah atau sunting pit projection rules dengan meng-klik kanan bagian Pit Projection Rules. Projection rule harus dibuat sesuai hasil kajian kestabilan lereng.
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Click
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Click
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1.4.
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Reserves calculation 1.
Pilih menu Reserves>Sample>Solids…
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Click
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Pilih menu Reserves>Evaluate Samples>Mining Reserves…
Click
Click
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Pilih menu Reserves>Accumulate Samples…
Click
Click 4.
Pilih menu Reserves>Reformat Samples>Block…
Click
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Click
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Excel or CSV Database 2.1. Create reserves database in Excel or CSV file 1.
Ekspor file tab_ressol4 ke dalam format Excel.
2-Click
1-Click
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Click
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2.2. Create polygon database in Excel or CSV file 1.
Buka file xls_ressol4.
2.
Buat dua kolom baru, yaitu kolom OB dan COAL.
OB = TOTALVOLUME – GROUP1_VOLUME
COAL = TOTALRRMASS
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Buat pivot table dari semua data tersebut.
Pilih semua cell (tekan Ctrl+A)
Pilih menu Insert>PivotTabel.
Click
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Click
Drag
Drag
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Drag
Drag “Values”
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Urutkan kolom A mulai dari level yang paling tinggi (misal: P90, P80, P70, …, P00, M10, M20, dst.).
5.
Untuk mempermudah penyuntingan, pivot table harus di-copy ke sheet lain
Pilih semua cell (tekan Ctrl+A)
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Copy semua cell (tekan Ctrl+C).
Pindah ke sheet baru, lalu pilih Paste>Paste Values.
MineScape Training
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Click
Hapus baris-baris yang kosong yang menjadi pemisah antar level (misal antara P90 dengan P80)
Lakukan formatting seperlunya (lihat gambar berikut).
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Permukaan topografi (hijau)
Lantai batubara (hitam)
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Nama tiap solid menunjukkan lokasi blok penambangan.
Blok SOL002_xxx
Blok SOL003_xxx
Dan seterusnya…
2.3. Scheduling
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