Geomechanics.io

  • Free Tools
Sign UpLog In

Geomechanics.io

Geomechanics, Simplified.

© 2025 Geomechanics.io. All rights reserved.

Geomechanics.io

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

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Projects
    Safety

    Hillgrove underground restart: stability and safety takeaways for mine engineers

    December 22, 2025|

    Reviewed by Joe Ashwell

    Hillgrove underground restart: stability and safety takeaways for mine engineers

    First reported on Australian Mining

    30 Second Briefing

    Larvotto Resources has begun underground development at its Hillgrove antimony–gold project in New South Wales, re‑opening historical workings to access high‑grade antimony and refractory gold mineralisation. The restart involves rehabilitating existing declines and levels, upgrading ground support, and re‑establishing services to support modern mechanised mining fleets. For geotechnical and mining teams, early focus will be on re‑assessing legacy excavation stability, water inflows and ventilation capacity to safely transition Hillgrove back into sustained underground production.

    Technical Brief

    • Rehabilitation is being staged to allow progressive re‑entry while maintaining exclusion zones around unassessed headings.
    • Safety management is being framed around modern mechanised mining, contrasting with earlier, more labour‑intensive methods on site.
    • Similar brownfield underground restarts are likely to adopt phased re‑entry and legacy‑support audits as baseline practice.

    Our Take

    Antimony appears far less frequently than gold in our database, so Hillgrove’s restart in New South Wales signals one of the relatively few Australian projects that can supply this critical metalloid alongside precious metal output.

    Within the 858 tag-matched pieces on Projects and Safety, underground restarts in NSW like Hillgrove typically face tighter scrutiny on ground control and ventilation standards than new greenfield pits, which can influence both scheduling and contractor selection.

    Larvotto Resources’ exposure to both gold and antimony at Hillgrove gives it a mixed revenue profile that, in our coverage, is uncommon among junior Australian miners, potentially cushioning the project against single-commodity price swings.

    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

    Chile’s 13 copper projects to 2026: capacity, risk and capex notes for engineers
    Mining
    about 2 hours ago

    Chile’s 13 copper projects to 2026: capacity, risk and capex notes for engineers

    Thirteen Chilean copper projects worth $14.8 billion are targeting key 2026 milestones, with seven operations including Collahuasi’s C20+ life-extension, Codelco’s Rajo Inca and Capstone’s Mantos Blancos expected to add almost 500,000 tonnes/year of new capacity. A further six projects, such as BHP’s Spence and Capstone’s Santo Domingo, plan to start construction within a $7.7 billion pipeline that Cochilco says could lift national output to about 5.6 Mt, against a forecast 2026 deficit of 150,000–330,000 tonnes. José Antonio Kast’s incoming government is expected to streamline permitting and environmental approvals, but unresolved community opposition and potential legal challenges remain the main execution risk.

    Fortescue–TISCO green iron pact: flowsheet and ore-spec lessons for miners
    Mining
    about 13 hours ago

    Fortescue–TISCO green iron pact: flowsheet and ore-spec lessons for miners

    Fortescue has signed a technology development agreement with Taiyuan Iron and Steel (TISCO), a subsidiary of China Baowu, to jointly explore green iron production routes using Fortescue’s ore and TISCO’s low‑carbon steelmaking capability. The partnership centres on piloting and scaling technologies such as hydrogen‑based direct reduction and renewable‑powered electric furnaces within Baowu’s existing integrated steel complexes. For miners and steel producers, the move signals growing demand for ore specifications, beneficiation strategies and process control tailored to low‑carbon ironmaking flowsheets in China.

    Liontown’s fully underground Kathleen Valley: design and risk notes for mine engineers
    Mining
    about 13 hours ago

    Liontown’s fully underground Kathleen Valley: design and risk notes for mine engineers

    Liontown Resources has completed three years of open pit mining at its Kathleen Valley lithium project in Western Australia and is now transitioning fully to underground operations. The mine is shifting to long-term underground production targeting high-grade spodumene beneath the existing pits, supported by the Dragonfly accommodation village constructed to house the expanded workforce. The move concentrates activity on deeper ore zones, with implications for ground control, ventilation design and paste backfill planning in a hard-rock lithium setting.

    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.

    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy