Rock Mass Data Analyser (RMDA)

The Rock Mass Data Analyser (RMDA) enables users to input geotechnical data into mXrap, creating a comprehensive geotechnical database for borehole and mapping data. The application provides 3D visualisation, charting, and stereonet analysis capabilities.

Supported Data Types

The application currently supports visualisation and assessment of:

• Rock mass quality data: RQD, RMR, Q, Q', GSI
• Structural data: Joint orientations and conditions from scanline mapping and logging
• Laboratory test results: UCS, TCS, BTS

Key Features

Data Filtering and Visualisation

• Multiple filter options for borehole IDs, lithologies, data sources, joint sets, and rock strength test types
• Pre-set legends for all geotechnical data
• 3D location-based data selection and filtering

Q values plotted along boreholes

Statistical Analysis

Generate histograms and CDF curves for rock mass quality data across various lithologies and boreholes. Lithologies can be combined or plotted separately, with 3D location selection enabling analysis of specific geotechnical domains.

Histogram and CDF curve of Q values for combined lithologies

Histogram and CDF curves of Q values for two lithologies plotted separately

Structural Data Analysis

Import and visualise both scanline mapping data and borehole structural logs in 3D and on stereonets. Features include:

• Discontinuity set assignment on stereonets
• Real-time updates to discontinuity set statistics as sets are assigned or filters applied

Structures plotted along boreholes based on discontinuity set

Poles plotted on stereonet based on discontinuity set

Laboratory Test Analysis

Visualise intact strength laboratory test results along boreholes and generate Hoek-Brown failure envelopes for specific lithologies, data groups, or boreholes.

Hoek-Brown curves based on UCS, TCS and BTS test results

Lab core photo viewer

Integration and Future Development

Current Integrations

• mXrap's Discrete Fracture Network (DFN) generation app
• Data collection web app for efficient tablet-based scanline mapping

Planned Features

• Geotechnical and structural domain creation and analysis
• Window mapping and point load test data analysis
• Integration with mXrap's seismic suite for combined visualisation
• Feeder functionality for stope reconciliation and geotechnical block model applications

Demo

📄️ Geotechnical Domains Delimiter

This app allows you to create your own geotechnical domains; either from boundaries (e.g. lithological contacts or fault planes) or volumes (e.g. lithologies, domains, selection boxes).

📄️ Rock Mass Data Analyser App

Latest updates to the Rock Mass Data Analyser (RMDA) application including interface improvements, new geology and structural data import capabilities, stress analysis tools, and enhanced filtering options for geotechnical data analysis in mXrap.

Videos

Authors

Principal author: Denisha Sewnun
Contributing authors: Daniel Cumming-Potvin, Johan Wesseloo, Kyle Woodward

Citation

Sewnun, D, Cumming-Potvin, D, Wesseloo, J & Woodward, KR 2020, mXrap software app, Rock Mass Data Analyser, Australian Centre for Geomechanics, Perth, mxrap.com