Konsep Dasar Open Cut allows you to: • Mensimulasikan suatu desain tambang untuk tahapan short-term production operations & long-term feasibility studies • Menggunakan Minescape CAD tools untuk visualise dan • Graphically. Dengan sistem perhitungan reserve yang dapat memastikan Vol ton dan Grades, sehingga setiap komponen dapat dihitung secara akurat dengan menggunakan software selain minescape.
OPENCUT PROCESS PREVIEW
OPEN CUT PROCESS
OPENCUT PROCESS
STARTING OPEN CUT PROJECT 1. Open Design file Block 2. Create New layer (ex: Polygon) 3. Copy duplicate polygon sheet/boundary area project to layer polygon there are 2 ways to make boundary polygon; first using poly sheet to generate batter block over all of the area project; and the second using contour oratio and this way means only this area will be generate block 4. Copy duplicate subcrop of lower seam that to be mined 5. Create 2 line parallel with subcrop line which cover project area ( this line will be used as reference to the generate strip) 6. Create 2 line which across the first line ( this line will be used as reference to generate block) 7. Create Side definition for High wall, side wall and low wall using : Minescape explorer Spec Create Spec category : Side 8. Tag each side of the polygon boundary using menu Strip_Design Tag Design Segments (for example : high wall using hw55, side wall using sw55 and low wall using lw30).
Side Definition
Side Wall
Offset
Batter Angle
Side Definition 1
Side
2 Start batter/offset
Side
Side
Batter Block
End batter/offset 4
Side
3
Membuat Side Definition
Membuat Side Definition
Side Definition
Generate Strips Strip Design Generate Strips
B01 B34 Block Naming Direction
Block Size Block Size
Strip Definition
Generate Strips Strip Naming direction
S01
S13 Side Definition
Generate Strip Intersection (BatterBlock) Strip Design Strip Intersection
Merger Batter Block Minescape Explorer Folder Block Process Merge Batter Block
After Merging process, Delete the Smaller Batterblock
Project Solids Strip Design Project Solids
Solids Display Tips :Solids dapat diproyeksikan, hanya pada area yang tercover oleh surface topo (pada area crest), Dan surface floor(pada Toe area).Sehingga baiknya disimulasikan dahulu untuk total areanya
Section Solids Graphics Section Blocks
Section Results
Reserve Solids
nd 2
Days
Generate Sample Solids Reserve Sample Solids
Solids Mining Evaluation Reserves Evaluate samples Mining Reserves
Total Percent : 50/50x100 Tonnes Add Percent
Adjustment/Monitoring from ROM
: 50/100x100 Tonnes
Accumulate Sample
Accumulate table result Reserve Accumulate Samples
Reformat Block Reserve Reformat Sample Block
Terminologi Calculated Reserve
Rawrecmass : Raw Recoverable mass = mass – (LossVol x RD) Dilution Volume : Dilution/seam volume*100*RD/Dilution RD Rommass: Raw Recmass*(100+Rom moisture)/(100-Dilution Volume*(100-Dilution Moisture)/100) Productmass: (Rommass-(mass*Dilution/100*(100-moisture)/(100-Rommoisture))) *(Yield/100*(100-moisture)/(100-product moisture))
Create SR Colour
Terdapat 2 cara dalam melakukan proses ini: 1. By MXL pembuatan beberapa Spec MXLtransfer to table data acc / Reformat Minescape Explorer Action Resgraph
2. By Microsoft Excell; Data Accumulated/Reformat export minescape Explorer Table Genricpilih TableImport to Excell used pivot & IFminescape Explorer Import TableAction Resgraph
Create SR Colour used MXL Minescape xplorerMXL Files Create
Minescape xplorerTable Files Generic made new name table open folder Table column Create
Mincom Schema
MXL SR MINESCAPE EXPLORER-MXL FILES-CREATE
Create Table SR
Minescape Explorer Table files Generic + Name of table Open Folder Table Column Create
Resgraphic SR Colour 1. Export reformat tables reserve into excel 2. Create new column , Coal Cum, waste Cum , SR Cum, and SR_clr_cum
Blockname SOLB02S03 SOLB02S04 SOLB02S05 SOLB02S06 SOLB02S07 SOLB02S08 SOLB02S09 SOLB02S10 SOLB02S11 SOLB02S12 SOLB02S13 SOLB02S14
OB COAL SR OB_CUMM COAL_CUMM SR_CUMM SR_Max4 1320.424908 81.60457611B2/C2 IF(MID(A2,4,4)=MID(A1,4,4),B2+E1,B2) IF(MID(A2,4,4)=MID(A1,4,4),C2+F1,C2) E2/F2 IF(G2>4,200,(G2*(170-110)/4)+110) 638.2804306 82.0840497 7.775937 1958.705338 163.6886258 11.966044 200 531.3094552 121.4999027 4.372921 2490.014793 285.1885285 8.7311183 200 433.5867374 148.1173401 2.927319 2923.601531 433.3058686 6.7472004 200 497.5371284 156.765728 3.173762 3421.138659 590.0715966 5.7978365 200 768.4255068 215.5657768 3.564692 4189.564166 805.6373734 5.2003101 200 776.312133 180.8911514 4.291598 4965.876299 986.5285249 5.0336875 200 839.1555602 183.5051498 4.572926 5805.031859 1170.033675 4.9614229 200 995.1402402 185.1083984 5.375986 6800.172099 1355.142073 5.018051 200 779.5135734 176.3910103 4.419236 7579.685673 1531.533083 4.9490839 200 546.6651012 176.7699699 3.092522 8126.350774 1708.303053 4.7569726 200 682.7194424 178.019249 3.835088 8809.070216 1886.322302 4.6699709 200
Resgraphic SR Colour MINESCAPE EXPLORERACTIONSRESGRAPHICS-PROCESS
Harus diisi
Resgraph SR Cumm Result
Create Pit Design Minescape Explorer Spec CreateBenches
Create Polygon Pit from SR Cumm
INSERT RAMP Strip_Design Ramps insert ramps
Generate Pit Design
Pit Project Result of generate Pit design will create new layer name as according to name which filled at form, for example : crest_line; toe_line; Ramp line; and Rays_line. Copy duplicate object from those layer into one layer for example pit_1
INTERSECTION PIT
Rd 3
Days
Create Pit Floor 1. Create new layer at design file Pit Design ( for ex : pit_floor) 2. Attach contour structure floor of lowest seam, and copy duplicate to layer pit_floor 3. Displaying polygon_pit and relimit that contour structure using this polygon
Make Triangle Pit Design
Model Triangles Design
Create Intersection line between topo and pit design Minescape Explorer Triangle Files process
Clip Pit Design Over topo using surface topo Minescape Explorer Surfaces All Surfaces Process
Result after Clipping using surface topo
Create Triangle Final Pit Design Model Triangle Design
Final Pit Result
Pit Reserve Calculation
• Reserve Sample • Evaluate Sample ( Mining Reserve ) • Accumulate Sample
Reserve Sample Triangles
Evaluate Sample ( Mining Reserve ) Reserve Evaluate Samples Mining Reserves
Accumulate Sample Reserve Accumulate Samples
EVALUATION
QUESTION
