Open Cut Introduction

INTRODUCTION OFMINESCAPE OPEN CUT COAL

AGENDA :

1.OPEN PIT/CUT DESIGN2.MINING RESERVES CALCULATION3.RAMP DESIGN

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.

ILUSTRATION OF SIDE DEFINITION

Side Wall

Batter Angle

Offset

Side

Start batter/offset

End batter/offset

1 2

34

Side

Side

Side

Batter Block

ILUSTRATION OF SIDE DEFINITION

Create side definition by right click of side definition or open Minescape explorer – Side definition – create.

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

Create batter block setup layer and create start and end line

ILUSTRATION OF DESIGN STRIP

Open strip design – generate strip

NEXT SLIDE

© Mincom 2001 Page 17

Strip ModeStrip Mode

Side Definition

Create strip intersection by strip design – strip intersection Primary Blocks

Batter Block Intersect

Names of Block Construction

Secondary blocks

Primary blocks

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

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.

Start of Bottom Surface

Bench

SOLID VIEW

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)

1. Open Reserves – sample - solid

2. MINING RESERVES

2. Evaluate Mining Reserves

2. Accumulate Mining Reserves

3. Reformat sample by Open reserves – reformat sample - interval

4. Export reformat sample into excel or CSV file by open Minescape explorer – table file –generic – choose the

reformat sample then export

MINING RESERVES

RESGRAPHICS

Add SR_Color column at Mining reservesSR_Color

IMPORT TABLE FROM EXEL

Generated Reserves Graphics

File contain SR_Color database

Output Layer

Create Block and Solid for Out pit and In pit dump Area

To Next Slide

Schema Named

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.

Calculate Volume Out pit and In pit dump by Bench

1. Open reserves – sample - solid

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

Reformat sample by open reserves – reformat sample - interval

Output Table

3. RAMP DESIGN3.1. Bench Definition Bench definition from constant elevation

Minescape Explorer – Specs – Create – Spec Category

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

BERM ILUSTRATION

3.2.3. Tag Side DefinitionStrip Design – Tag Design Segment

3.2.4. Crest and Toe ProjectionStrip Design – Ramp – Project and Offset

Pick from Layer

Bench Def.

RAMP DESIGN USING SEGMENTS

RAMP DESIGN USING SEGMENTS

ANY QUESTION ?