4D geotechnical hazard assessment

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4D geotechnical hazard assessment

Currently, we can access an SQL database from within the GOCAD environment and can query different types of data and select specific periods in time and create GOCAD objects from those, which wasn’t possible before,

- Mathijs Mol, Mining Engineer. Rio Tinto.

Quantitatively forecast geotechnical hazard for design or real time monitoring applications by combining all the relevant geological and geotechnical observations. Rock type, structure, rock quality, seismicity, deformation, support, geometry, production and other data are transformed into a set of spatially modelled, normalized, and weighted hazard criteria that are combined into an overall hazard estimation. It is an expert-system approach providing access to the input data and interpretation in order to build confidence through visual, and statistical, validation of hazard zones. The process has proven successful at mine sites around the world, from forecasting rockburst and water inflow hazards in deep Canadian mines, to slope stability hazard in large South African open pits, to roof fall hazards in Australian coal mines.

Key technology

  • Geohazmap Workflow

    Computes geotechnical hazards using either a knowledge-driven or data-driven approach. It makes full use of intrinsic 3D surface modelling, solid modelling, and geostatistical functionality. Complex relationships among geology, structure, stress, and seismic data are handled by the underlying power of object data structures and modelling engine. It handles any type of ground failure or hazard for which objective criteria can be developed. Users define how the criteria are spatially, temporally, and quantitatively related to hazards.

  • 4D-GIS and relational data management system

    Combines a 3D-GIS query environment with a 4D relational data management system. Brings together true 4D multi-disciplinary data management, modelling, query, and expert-system analysis on a single platform. The technology is especially suited to the dynamic data routinely encountered in mining and provides direct support for time-dynamic assessments of geotechnical hazards.

Featured software

  • Geotech

    Create integrated, real time, 4D-GIS based geotechnical hazard assessment of your open pit or underground mining projects. Combine multiple criteria using a variety of knowledge-driven and data-driven methods to highlight hazardous ground. The workflow interface guides you through the construction of a hazard model and then applies it in either a standard or real-time monitoring mode. You define hazard definitions, normalizations, and weightings under the categories of geology, rock quality, mine seismicity, structure, stress, geometry, and any number of user-defined categories.

  • Targeting Workflow
    Targeting Workflow

    Combine multiple mining hazard criteria using a variety of knowledge-driven and data-driven methods to highlight hazardous mining areas. The workflow interface dynamically guides you through an expert process yielding reliable and repeatable results. The Targeting Workflow is only required for geohazard applications if a data-driven approach is being followed; the Geotech Module is sufficient for knowledge-driven approaches.

  • GOCAD Mining Essentials

    Build and analyze integrated, quantitative, multi-disciplinary 3D earth models with the power of 3D-GIS. The Module provides the essential tools required for modelling structure and geological contacts, as well as defining block models as rectilinear or stratigraphic 3D grids. Scalar and vector properties may be modelled on all objects using a wide range of property modelling tools. The GOCAD Mining Suite Base Module provides the platform for creating the 3D or 4D mine model that captures both the input hazard criteria and the output hazard assessment.

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