Download - Open Cut Introduction
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INTRODUCTION OFMINESCAPE OPEN CUT COAL
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AGENDA :
1.OPEN PIT/CUT DESIGN2.MINING RESERVES CALCULATION3.RAMP DESIGN
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1.1. Block, Solids and Reserve
1.OPEN PIT/OPEN CUT DESIGN
Minescape BlockingCreate polygon of the pit or pit shell. In our case pit shell
has given by our clientGive tag design segment to line follow rule of slope
stabilization from consultant by open Strip Design- Tag Design Segment choose side definition and select or not inverted side. To clear all tags click clear all tags.
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ILUSTRATION OF SIDE DEFINITION
Side Wall
Batter Angle
Offset
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Side
Start batter/offset
End batter/offset
1 2
34
Side
Side
Side
Batter Block
ILUSTRATION OF SIDE DEFINITION
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Create side definition by right click of side definition or open Minescape explorer – Side definition – create.
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Sample of Side Definition:Side Definitions:HW63AnglesIf (label == ‘coal’) then70else63endifOffsetIf range(level, totroof_sl2+3,topo_oct03_diver-1) thenif range(level,-29.5,-30.5) then5elseif range(level,-9.5,-10.5) then10elseif range(level, 10.5,9.5) then5elseif range(level,30.5,29.5) then10elseif range(level,50.5,49.5) then5elseif range(level,70.5,69.5) then10else0endifelse0endifILLEG_HWAngles70Offset0VERTICALAngles90Offset0
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Create batter block setup layer and create start and end line
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ILUSTRATION OF DESIGN STRIP
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Open strip design – generate strip
NEXT SLIDE
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© Mincom 2001 Page 17
Strip ModeStrip Mode
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Side Definition
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Create strip intersection by strip design – strip intersection Primary Blocks
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Batter Block Intersect
Names of Block Construction
Secondary blocks
Primary blocks
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Merger blocks intersection by Open minescape explorer – user commands –
bbmerge.
1.2. Projection Solid with Batter Slope for Reserves Calculation1.2.1 Open strip design – project solid
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1.2.2. Fill the block intersection names in the blocks name column1.2.3. Fill layer name base on naming regulation1.2.4. Create pit projection rule by right click or open
Minescape explorer – spec – pit generation. Projection rule should be created base on slope stability
regulation from consultant.1.2.5. Choose the operation (project up, project down, locate, etc), surface direction, and do not save. For bench, angle, and offset will follow to side definition.1.2.6. Check the solid created. The solid can edit by move or remove vertex. Be care full during move or remove vertex and ensure it will not
impact to reserves.
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Start of Bottom Surface
Bench
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SOLID VIEW
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Sample for Expression Surface
Totflr_Sl_Cutbac = nonmiss(New_lowwall_abi ,SL3L_floor, Sl3_floor, SL3U_floor,SL2L_floor, SL2_floor, SL2U_floor, SL1_floor)
Totroof_SL2=nonmiss(SL2U_roof,SL2_roof,SL2L_roof,SL3U_roof,SL3_roof, SL3L_roof)Benm70_Recon=min(max(totroof_sl2,-70),topo_oct03_diver)
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1. Open Reserves – sample - solid
2. MINING RESERVES
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2. Evaluate Mining Reserves
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2. Accumulate Mining Reserves
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3. Reformat sample by Open reserves – reformat sample - interval
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4. Export reformat sample into excel or CSV file by open Minescape explorer – table file –generic – choose the
reformat sample then export
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MINING RESERVES
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RESGRAPHICS
Add SR_Color column at Mining reservesSR_Color
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IMPORT TABLE FROM EXEL
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Generated Reserves Graphics
File contain SR_Color database
Output Layer
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Create Block and Solid for Out pit and In pit dump Area
To Next Slide
Schema Named
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1. Create layer of polygon dumping and give tag design segment dump 2. Separate between outpit and inpit dumping area3. Create Batter Block and their name should be using naming
regulation4. Create pit projection rule, locate in the base dump and project to
final dump RL.
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Calculate Volume Out pit and In pit dump by Bench
1. Open reserves – sample - solid
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Fill in the column, table file out-put, intervals that we created by open Minescape explorer – surface – create.
After we calculated dump volume we should filter the solid before export to CSV or excel file. Open Minescape explorer – solid – export or choose the layer of the dump solid
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Reformat sample by open reserves – reformat sample - interval
Output Table
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3. RAMP DESIGN3.1. Bench Definition Bench definition from constant elevation
Minescape Explorer – Specs – Create – Spec Category
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3.2. Create Ramp Design
3.2.1. Create Pit ShellCreate polygon as limit of Pit shell (From Stratmodel Module)
3.2.2. Insert RampCreate ramp by insert ramp location at Pit ShellStrip Design – Ramp – Insert Ramp
NEXT SLIDE
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BERM ILUSTRATION
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3.2.3. Tag Side DefinitionStrip Design – Tag Design Segment
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3.2.4. Crest and Toe ProjectionStrip Design – Ramp – Project and Offset
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Pick from Layer
Bench Def.
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RAMP DESIGN USING SEGMENTS
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RAMP DESIGN USING SEGMENTS
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ANY QUESTION ?