The planning of todays mines is becoming an incredibly complex task'

1
Introduction
2
Act I
3
The planning of todays mines is becoming
increasingly complex

• While mines are complex, planning software is
  often very hard to use
• Complex Operations Complex Software
• gt
• Costly Solutions
• Untimely Solutions

4
With better software, complex problems will find
simple solutions
5
Introducing GMC Mine Scheduler
The Concept
The Concept
A Primary Schedule, a Redirected
Schedule, and a Rehandled schedule
The Implementation
6
Act II, Scene 1
7
Excel is the best platform

• Most scheduling starts with Excel
• 95 of professionals are familiar with Excel
• Using Excel results in short learning curve
• Excel models are extensible
• Excel is low cost

8
Excel is a stable platform, interfaces well, and
has many inbuilt features

• Microsoft Office provides drivers that you can
  use to retrieve data from the following data
  sources
• Microsoft SQL Server OLAP Services
• Microsoft Access 
• dBASE
• Microsoft FoxPro
• Microsoft Excel
• Oracle
• Paradox
• SQL Server
• Text file databases
• Third-party providers

File/Save As

• Technologies
• Vista, Longhorn, etc
• .COM, .Net
• Active X

Office Clipboard
XML
9
In Excel, compiled COM code is from 30 to 50
times faster than VBA.
10
ACT II, Scene 2
11

12
GMC Scheduler identifies the basis of complex
scheduling problems
13
GMC Mine Scheduler provides a simple solution to
the complex problem
14
Act II, Scene 3
15
Wizard 1 of 3 sets up the registers
16
Wizard 2 of 3 is for data entry and network
definition
17
Wizard 3 of 3 completes the setup of worksheets
for scheduling
18
In GMC Mine Scheduler, problems are broken into
small components.
19
Continuous feedback guides the user - Excess
quantity scheduled dialog
20
Continuous feedback guides the user - Charts
are easy to setup and save
21
Continuous feedback guides user- Show Quantity
Available button
22
Continuous feedback guides the user - The
Decoupling Spreadsheet Part1
23
Continuous feedback guides the user - The
Decoupling Spreadsheet Part 2
24
Act III
25
Modern open pits are often large, complex, and of
marginal economics
26
GMC Mine Scheduler identifies the core problem,
and keeps it simple
27
A recent project

• Nickel laterite.
• Lerches Grossmann software to optimise NPV.
• GMC Mine Scheduler to implement variable cut-off
  grades.
• GMC Mine Scheduler to smooth Si/Mg stockpiles by
  blending.
• Twenty six periods.
• Eighteen Categories of material.
• Eight minerals and physical specs.
• Two pits with eight pushbacks in each.
• Eighteen blending stockpiles plus a ROM
  stockpile.
• The GMC Mine Scheduler was found to be an
  inexpensive, easy to use, powerful, and
  transparent alternative to other packages based
  on the linear/integer programming techniques.

28
GMC Mine SchedulerSmall, fast, reliable User
friendly and powerful

• www.garnseymining.com