GOCAD® Mining Suite

Geohazmap Workflow
Earth Modelling Solutions for Mining
Summary
Geohazmap Workflow provides a powerful solution for geotechnicalhazard estimation and monitoring. Multiple criteria can be combinedusing a variety of knowledge-driven and data-driven methods tohighlight hazardous ground. The workflow interface guides the user
through the construction of a hazard model for either undergroundor open pit operations, and then applies it in either a standard or
real-time monitoring mode. Hazard definitions, normalizations,and weightings under the main categories of geology, rock quality,mine seismicity, structure, stress, and geometry are completelyuser-defined.
The standard workflow interface is supplemented by a new, powerful“dashboard” interface. Geohazmap Workflow works closely inconjunction with Targeting Workflow for both 4D back-analysis andforecast of geotechnical hazard.

©2009 Centre for Excellence in Mining Innovation. All rights reserved

GOCAD Mining Suite Geohazmap Workflow is an extension of Paradigm™ GOCAD, the world's most sophisticated geological modelling platform, adapted specifically for the mining industry and available exclusivelyfrom Mira Geoscience.

The workflow is designed to guide users throughthe specification of a quantitative geotechnicalhazard model for their site.
1. Choose the application domain as underground or open pit
2. Select where the hazard is to be evaluated
3. Specify the engineering rock mass block model
4. Choose a knowledge-driven or data-driven approach tocombining individual hazard criteria into a total estimationof hazard
5. Select major categories of hazard to include in the model:
geology, rock quality, major geological structure, structural
fabric (jointing), seismicity, stress, geometry, and support
6. Define or select any number of pre-defined hazard criteria
within each category
7. Specify or import normalizations and weightings for eachcriteria
8. Calculate individual hazard criteria and combine into overall
spatial hazard forecast

Key Features
Powerful User Interface

Geotechnical Hazard Modelling» Modelling of mine infrastructure, geology, structure,and geotechnical rock mass block models make fulluse of GOCAD’s intrinsic 3D surface modelling, solidmodelling, and geostatistical functionality» Complex relationships amongst geology, structure,stress, and seismic data are handled by the underlying power of object data structures and modellingengine» Handles any type of ground failure or hazard forwhich objective criteria can be developed» User defines how criteria are spatially, temporally,and quantitatively related to hazard

Modelling Approaches» Knowledge-driven (fuzzy logic) and data-driven(spatial weights-of-evidence) approaches to combining hazard criteria» User-specified hazard criteria, normalization, andcombination strategies» Quantitative spatial estimation of ground failure
probability

Pre-defined and Custom-defined
Hazard Measures» 3D visualization of mine model and hazard linked totabular and statistical data displays» Simple visual and quantitative examination ofindividual hazard criteria and overall hazard estimation» Standard GOCAD® workflow interface andindependent dashboard interface provide
intuitive and logical user interaction without
confusing menus and dialog boxes

Back-Analysis» Rapid, practical, and quantitative back-analysis ofground failure and other geotechnical hazard has
been made possible for the first time
» Operates in conjunction with the Targeting Workflow module to provide a functional 4D hazard
back-analysis and forecasting capability

Real-Time Monitoring» All inputs can be specified as dynamic: availability of
new data automatically triggers recomputation anddisplay of the hazard estimate

Workflow Benefits» Selection of pre-defined hazard criteria such as rocktype, rock quality, proximity to structure and structural intersections, fault slip tendency, kinematic
planar and wedge failure, microseismic event density
and source parameters, stress models» Any number of user-specified hazard criteria canbe added» Increased productivity» Ease of use» Repeatability» Knowledge transfer» Audit trail via automatic
report generation

Site Customization©2007. All rights reserved* GOCAD® iss a registeredregiste e trademark of P
Paradigm™
di ™

» A plug-in to GOCAD® that can be rapidly prototyped,developed, and modified on a site-specific basis» User interface and computation customization
controlled by editable xml and script files...Montreal Vancouver Brisbane Perthwww.MiraGeoscience.com@MiraGeoscience

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