Geomechanics.io

  • Free Tools
Sign UpLog In
Built byBoxcut Studio

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Research
    Safety
    Projects

    Raisebore stability in deep caving: key takeaways for mine design engineers

    October 2, 2026|

    Reviewed by Tom Sullivan

    Raisebore stability in deep caving: key takeaways for mine design engineers

    First reported on Australian Centre for Geomechanics – News

    30 Second Briefing

    Raisebore stability assessment for deep caving operations is shifting from standalone empirical tools to integrated workflows that combine mXrap’s Raisebore Stability App (QR and MSUS from RMD data), Rocscience UnWedge and RocTunnel3 kinematic analyses, and calibrated numerical stress–deformation modelling. The approach targets long, deep raises in highly stressed, structurally complex ground, addressing mechanisms such as face unravelling, wedge failure, spalling and time-dependent degradation along the full raise alignment. For practitioners, this means earlier screening of raise locations, more defensible diameter and alignment selection, and clearer definition of support and monitoring requirements.

    Technical Brief

    • mXrap Raisebore Stability App computes QR and MSUS from RMD-based logging, strength testing and stress inputs.
    • Rock mass quality, structure, in situ stress, excavation geometry and time-dependent behaviour are treated as co-governing failure drivers.
    • Empirical tools from McCracken & Stacey (1989) and other case histories are explicitly flagged as unreliable in deep, highly stressed, structurally complex ground.
    • Structural kinematic checks use UnWedge for simplified wedge analysis and RocTunnel3 for 3D block modelling with ATV, scanline and underground mapping data.
    • Numerical models track evolving major and minor principal stresses around proposed raises through multiple mining stages to assess spalling and stress-driven fracturing.
    • Research method integrates rock mass classification, structural interpretation, kinematic analysis, stress evaluation and calibrated numerical modelling into a staged workflow.
    • Design outputs include raise alignment and diameter selection, reaming performance expectations, support specification and targeted monitoring intervals along the raise.

    Our Take

    Tools like mXrap, Rocscience’s RocTunnel3 and UnWedge sit in a small subset of our 2414 research/safety-tagged pieces where numerical modelling is explicitly tied to caving and ground support design, signalling that software-driven geomechanics is becoming standard practice rather than specialist add‑on in Australian underground work.

    The prominence of the Australian Centre for Geomechanics and AusIMM in Melbourne and Perth aligns with our broader Mining coverage, where Australia appears as one of the most frequent jurisdictions for deep underground case studies, giving operators there an unusually dense local knowledge base for caving risk management.

    The heavy referencing of classic works (e.g. Lauffer 1988; Martin et al. 1999) alongside recent conference papers in the 11th AusIMM Underground Operators’ Conference and the Ninth International Symposium on Ground Support suggests practitioners are still calibrating modern numerical tools against empirically derived stability concepts, which can help reconcile conservative design cultures with more aggressive caving layouts.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    Mining
    about 2 hours ago

    Global Air Cylinder Wheels’ ASW: safety award insights for mine haulage engineers

    Global Air Cylinder Wheels’ patented Air Suspension Wheel (ASW) has won the 2026 People’s Choice Safety Innovation Award at the Queensland Mining Industry Health and Safety Conference, recognising its performance in Australian mine trials. The ASW replaces conventional pneumatic tyres with a mechanical air-cylinder suspension system integrated into the wheel, designed to reduce tyre blowouts, heat build-up and vibration on haul trucks and other heavy equipment. For mine operators, the technology targets lower maintenance downtime, more predictable tyre behaviour on haul roads and improved operator comfort in high-duty cycles.

    Mining
    about 2 hours ago

    IMARC 2024 matchmaking: practical takeaways for METS teams selling into mines

    IMARC in Sydney later this month will bring thousands of mining leaders, investors and METS suppliers together with a deliberate focus on mine operators as on-the-ground decision makers. Organisers are rolling out structured matchmaking initiatives to connect local site-based teams with technology vendors, aiming to accelerate adoption of solutions such as fleet management systems, ore-sorting technologies and remote operations platforms. For METS firms, the format signals more direct access to operational budgets and shorter feedback loops on deployment constraints at Australian mines.

    Mining
    about 2 hours ago

    Toyota–BHP HiLux BEV at Goonyella Riverside: duty-cycle insights for mine engineers

    Two Toyota HiLux battery-electric vehicles are now operating in production conditions at BHP Mitsubishi Alliance’s Goonyella Riverside open-cut coal mine in Queensland, extending BHP’s earlier HiLux BEV trial into a high-duty, hot-climate pit environment. The light vehicles are being used in regular mine operations rather than test tracks, exposing the BEV platform to rough haul roads, dust, and extended shift cycles typical of large truck-and-shovel coal operations. Data from this deployment will inform future mine-spec BEV light vehicle design, charging strategies, and maintenance regimes for heavy mining fleets.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    Tunnelling

    Specialised solutions for tunnelling projects including grout mix design, hydrogeological analysis, and quality control.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.

    AllGeotechnicalInfrastructureHazardsEnvironmental