GEOVIA Minex · Coal and stratified deposits
One model of the deposit, from the first borehole to the final landform.
GEOVIA Minex is the geology and mine planning system built for coal and other layered deposits. ACALA supplies, implements, and trains Minex teams across Indonesia, so the seam you model is the seam you mine.
Why a coal deposit needs its own tool
Coal is mined by the seam, so it has to be modelled by the seam.
Block-model software treats a deposit as a grid of cubes. Minex treats it the way a coal geologist does: as stacked seams with their own floor, thickness, quality and washability, offset by faults, and mined strip by strip. That difference shows up in the reserve statement, the strip ratio, and the haulage bill.
Deep, data-heavy projects, modelled quickly
Thousands of boreholes and dozens of seams build into a full model in minutes, and rebuild just as fast when new holes arrive.
Quality and washability, measured not assumed
The complete wash curve travels with the model, so yield and ash are reported by mining area and schedule period.
Waste and haulage costed before they happen
Dump scenarios, truck cycle times and haul roads are planned against the same model the reserves came from.
What Minex does
From exploration to rehabilitation, in the order a mine actually happens.
Every stage reads from the same geological model, so a change in the seam interpretation flows through the pit, the schedule and the final landform without re-exporting anything.
Geological modelling and resource evaluation
Manage borehole data, build the seam model, and report resources that stand up to audit.
Integrated data management
- Connects to corporate borehole databases: Microsoft Access, SQL Server, Oracle and acQuire.
- Validation, auditing and resource reporting tools that meet reporting-code requirements.
- Imports and exports Vulcan and Carlson grids and seam models, and string data to AutoCAD.
- Project inputs and outputs kept in one place by Minex file management.
Modelling
- Repeatable, fast modelling of seam floor, thickness and quality for the whole deposit.
- Inclined or curved faults, normal or reverse, modelled accurately.
- Complete coal wash curve, so yield, ash and other analyses can be estimated deposit-wide.
- GSLIB interface for kriging and conditional simulation; variogram modelling with dynamic lag adjustment.
- Jack-knife validation, contouring, sectioning, 3D boreholes, statistics and histograms.
Open pit optimisation and design
Find the economic limits first, then design pits, ramps and dumps that respect them.
Pit optimisation
- Optimizer uses rate and cost to locate a final pit that is break-even or optimal at its limits, with the Lerchs-Grossmann algorithm.
- Suited to deep pits where the sloping final highwall makes vertical analysis unreliable.
- For flat-lying deposits, both vertical and inclined strip ratio calculations.
Pit and dump design
- Manual or automatic pit and dump generation, with ramps built as the design grows.
- Roads and spoil piles placed on existing topography and patched into current surfaces.
- Reserves subdivided by the intersection of benches, strips and blocks with the geological model.
Scheduling, dump and haulage planning, short-term production
Turn the design into periods, trucks and blasts, and play the plan back before committing to it.
Scheduling
- Interactive scheduling directly on 3D seam models, pit designs and reserves.
- Target scheduling by volume or tonnage per period; live and historical charts and tables.
- Play back any saved schedule, branch it for what-if scenarios, and report to Microsoft Excel.
Dump, haulage and short-term
- Scenario manager for dump priority, sequence and fill direction.
- Truck cycle times from an equipment database, pit exit points, and fleet and haul-road comparisons.
- GPS survey instruments for download and peg-out; 3D blast design uploaded for drilling control.
- Dumps built to an elevation, a permitted surface or a target volume, including dragline dumps.
Underground design, scheduling, and mine rehabilitation
The same model carries longwall and bord-and-pillar layouts, and the landform the mine leaves behind.
Underground
- Quick layout tool for longwall or bord-and-pillar panels from panel configuration and working type.
- 3D reserves display coloured by working type or quality variable; underground reserves calculated automatically.
- Point-and-click scheduling that exposes bottlenecks, downtime and resource allocation across scenarios.
Rehabilitation
- Staged dumps designed from the excavation surface to an elevation or landform, matched to schedule volumes.
- Cross-section rehabilitation for dozing truck-shovel dumps to the final surface.
- Spoil reshaping that meets elevation and slope limits while minimising dozing cost.
See it
Minex in practice
Two short films from GEOVIA.
Why through ACALA
Software is the easy part. We stay for the implementation.
Authorised GEOVIA reseller in Indonesia
Licensing, renewals and vendor support handled locally by PT Acala Genesa Sumberdaya from Bekasi, for mines anywhere in Indonesia.
About ACALATraining by people who plan mines
Minex courses run on your own deposit data, from borehole database to first schedule, delivered by geologists and mine planners who use the software on consulting work.
Training programsAcademic licences and studies
Universities get Minex through the Academic License Program. Companies that need a resource estimate or open pit design before buying can start with an ACALA study.
Academic License Program · Open pit design servicesFrom the brochure
What Minex covers, in the words of the product brochure.
Paraphrased from the GEOVIA Minex brochure distributed by ACALA. Download the full document below.
Built for coal and stratified deposits
Large, deep and data-intense projects modelled quickly; coal quality and washability measured accurately; waste removal and haulage costs controlled; data duplication and multiple packages reduced.
Geological modelling and resource evaluation
Borehole data connected to Access, SQL Server, Oracle and acQuire; repeatable seam floor, thickness and quality models in minutes; inclined and curved faults, normal or reverse; the complete wash curve for yield and ash; kriging and conditional simulation through GSLIB.
Pit optimisation and design
The Minex Pit Optimizer by Lerchs-Grossmann for deep pits, vertical and inclined strip ratios for flat deposits; pit, ramp and dump design that patches into existing topography; reserves cut by benches, strips and blocks.
Scheduling, dumps and haulage
Detailed interactive and target scheduling on rich 3D displays; live charts; what-if branches; dump scheduling and haulage planning with a scenario manager; reports straight to Excel.
Short-term production and underground
GPS survey instruments for download and peg-out; 3D blast design uploaded to drills; dumps built to an elevation, surface or volume; dragline dumps; detailed underground mine designs.
Proven in Indonesia
Coal producers in Indonesia use Minex for mining strategy, dump scheduling and haulage planning, with results they report to their boards.
Questions we get
GEOVIA Minex FAQ
What is GEOVIA Minex?
Which deposits is Minex suited to?
Does it cover both open pit and underground?
How does Minex relate to Surpac, Whittle and MineSched?
How do I get a licence or training in Indonesia?
Next step
Ready to see your deposit in Minex?
Send us a few boreholes and a description of the seams. We will show you the model, the pit and the first schedule in a working session.