Solution · Strategic Mine Planning for Caving

A life-of-mine plan for a cave, with every assumption still visible at the end.

A caving operation commits capital years before the first draw point produces. The strategic plan decides the method, the footprint elevation, the extraction sequence and the equipment behind it, and it has to survive new drilling, a different commodity price and a changed cost base. GEOVIA Strategic Mine Planning for Caving carries that work on one platform, so the assumptions, the risks and the approval steps stay recorded instead of living in someone’s spreadsheet. ACALA supplies the licences in Indonesia and runs the study when a client would rather hand it over.

The solution in one view

  • InputAn assessment of the potential project, based on new data.
  • Seven stepsObjectives, footprint, material flow, geomechanics, scenarios, financials, reporting.
  • OutputA feasibility study report, a life-of-mine plan, and a go or no-go that can be ranked against other projects.
  • Who runs itYour own planners on a GEOVIA licence, or the ACALA team on your data.
CaveabilityWhether the rock mass will cave once undercut, and how it will behave as it does.
Footprint elevationThe level at which the cave is established, traded off against grade and capital.
Material flowHow broken ore moves to the draw points, carrying mixing and dilution with it.
Cave backThe advancing top of the cave, simulated to predict propagation and risk.
Life of mineThe full production plan from first undercut to closure.
NPVThe discounted value the strategy is optimised against, alongside ore recovery.

Where this starts

Three questions that usually bring a caving operation here.

A plan built for different conditions

Are you building or rebuilding a life-of-mine and strategic plan against costs, prices and constraints that no longer look like the ones the original plan assumed?

Strategy that reaches the design

Do you need business strategy to actually decide the mining method, the extraction sequence, the financial model and the caveability of the mine, rather than sitting beside them?

Governance you can show

Are the assumptions, the risks and the approval steps captured systematically, so the mine-planning process can be audited rather than reconstructed from memory?

The workflow

Seven steps, from objectives to a plan someone can approve.

Each step hands its result to the next on the same platform, so a change in an early assumption is carried through instead of re-entered.

1Frame

Define objectives, KPIs and constraints

What the strategy is being optimised for, and the limits it has to respect.

Decided here

  • Target KPIs such as NPV and ore recovery, production limits, capital envelope.

Result

  • A stated basis every later scenario is measured against.
2Footprint

Optimise cave footprint elevation and economics

Where to establish the cave, traded off between grade, capital and development.

Decided here

  • Footprint elevation and extent, with the economics attached to each option.

Result

  • A chosen footprint with the alternatives still on record.
3Flow

Simulate material flow, mixing and dilution

How ore actually reports to the draw points, and what it brings with it.

Decided here

  • Draw strategy, expected grade at the draw point, dilution entry.

Result

  • A grade forecast that reflects flow, not just the block model.
4Rock

Simulate cave back and cave geomechanics

Whether the cave propagates as intended, and what it does to the ground around it.

Decided here

  • Propagation behaviour, subsidence, risk to critical infrastructure.

Result

  • Geotechnical risk stated in the plan rather than discovered later.
5Scenarios

Scenario analysis

Many projections of mining cost, commodity price and other influencing factors, run against the same plan.

Decided here

  • Which strategy holds up across the range, not only at the base case.

Result

  • A preferred plan with its sensitivity documented.
6Money

Prepare financial models

The physical plan expressed as cash flow, against the KPIs set in step one.

Decided here

  • Capital and operating profile, discounted value, ranking against other projects.

Result

  • Numbers a board can act on, traceable back to the plan that produced them.
7Share

Reports and a shared view of the plan

The plan, its assumptions and its risks published to everyone who has to act on them.

Decided here

  • What is approved, by whom, on which version of the data.

Result

  • A feasibility study report, a life-of-mine plan, and a go or no-go decision.

The workflow at a glance

The same seven steps, end to end.

Strategic caving workflow: an input assessment, seven numbered steps from objectives to reporting, an output of feasibility report and life-of-mine plan, and a feedback loop from scenarios back to the footprintInput, seven steps, output — carried on one platformINPUTAn assessment of thepotential project,based on new data.1Objectivesdefine2Footprintoptimise3Materialflowsimulate4Geo-mechanicssimulate5Scenarioscompare6Financialsvalue7ReportingshareOUTPUTFeasibility studyreport, life-of-mineplan, and a go orno-go that can beranked.change an assumption and every later step is carried through, not re-enteredEach step hands its result to the next on the same platform.
The workflow as it runs on the platform, drawn from the steps described above.

What it changes

What the solution is meant to give a caving operation.

Strategic KPIs optimised

Net present value and ore recovery are the targets the plan is built against, not a number checked at the end.

Robust life-of-mine plans

A plan that holds together across the whole mine life, with the sequence and the infrastructure it depends on.

Many scenarios, quickly

Projections of mining cost, commodity price and other influencing factors tested against the same plan.

Confidence in the inputs

The inputs and the final strategic plan sit on one platform, so what fed a decision can still be found.

Less rework

Analysis time and rework fall when a changed assumption flows through instead of being re-entered by hand.

Less loss and delay

Reserve loss, mining delays and risk to critical infrastructure are reduced by testing them in the plan first.

Questions people ask

Strategic Mine Planning for Caving FAQ

How is this different from tactical planning for caving?
Strategic planning decides the method, the footprint and the sequence across the life of the mine. Tactical planning turns those decisions into development and production schedules for the coming period. The two share the same data and are covered on a separate page.
Does it cover block caving and sublevel caving?
Yes. The cave footprint, material flow and geomechanical steps apply to caving methods generally, and the scenario work is where the difference between methods is tested.
Can ACALA run the study instead of our team?
Yes. ACALA works either way: licences and support for your own planners, or the study carried out by ACALA engineers on your data, with named Competent Persons where the report needs them.
Which reporting standards can the output follow?
Reports are aligned with JORC 2012, SAMREC and NI 43-101, and with SNI and KCMI in Indonesia.
How do we get pricing?
Send the scope through the contact form or on WhatsApp. A quote for licences, a study or training follows within a few working days.

Next step

Tell us where the cave plan stands, and what has changed since it was written.

A quote for licences, a strategic study or training within a few working days.

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