Cube Grade Control System GCX II - Underground

Overview

The Cube Grade Control system (GCX II) is an integrated, Surpac based grade estimation and reporting system for Open Cut and Underground Mines. • Easy to use, repeatable framework • Logical step-by-step process flow • External controls for self-customisation • Choice of estimation methods • Auditable • Statistical and visualisation tools • Full documentation

GCX UG Process Flow - Underground Campaign Modelling & Estimation

Definition of Campaign Modelling Volume

Domain Wireframing

Model Stamping and Composite Extraction

Composite Validation

Grade Estimation (2D or 3D)

Update Master Block model

To Engineering for Stope Design

Ad hoc Tool set

Grade control drill design

Face Channel sampling

Structural Visualisation

Face and Back Map Draping

Production

Flag Stope Design in Model

Deplete EOM Fired Stopes

Deplete EOM Development

Deplete “As mined”

Model Depletion and EOM Reporting

Development Reporting

Stope Production Reporting; By Stope/By Ring

Easy to Use

• Menu system within familiar Surpac environment • Logical step-by-step process flow • Local site terminology incorporated as appropriate

External Controls Attributes associated with various domain assignment are handled externally via customisable parameter sheets in .xlsx format. • Lithology • Oxidation • Density • Grade Estimation

Definition of Campaign Modelling Area

Campaign modelling areas can be defined using a polygon (e.g. in longsection) or a 3D solid

Model Flagging and Composite Extraction Automated stamping of zone codes, density and composite extraction speeds the modelling process as well as maintaining an audit trail for future reference.

Composite Validation Extreme grades at either end of the sample population can be examined numerically as well as spatially, Distribution allows multiple percentile or grade threshold bins to be examined.

• Uses the Cube Estimation Management System – ECX – Easy to use, repeatable and auditable – Multi-element and multi-domain environments – Allows dynamic estimation into folded domains – External parameters saved and loaded from Excel – Wide range of useful outputs e.g. Kriging Neighbourhood Analysis,

Grade Estimation

Update Master Block model

The master grade control model can be easily updated via a single step. The master block model acts as a single repository for all of the applicable grade control information for a mine/deposit.

Stamping and Reporting of Stope Design Reports are generated in a number of formats with optional content for uploading to material tracking systems.

Handy tools A number of auxiliary and statistical tools are available.

GCX for Open Pits

The Cube Grade Control system (GCX II) is also available for Open Cut Mines

About Cube

Cube Consulting provides specialist consulting services and software systems to the global mining industry. We are a quality team of geologists and mining engineers with a wide range of skills and experience, applicable from advanced exploration projects through to operational mines across multiple commodities. Established in 2000 in Perth, Western Australia, Cube Consulting has grown to become a world class Mining Services Company, working with our customers to add value to their projects through considered and practical advice. • Geological Services based on extensive operational and field based experience. • Mine Engineering Consulting Services supporting sound commercial decisions. • Technology solutions focused on Mine Grade Control and Reconciliation. Our goal is to ensure our customers succeed through practical and professional advice.