A transparent development-cycle optimiser for testing cutting sequences, panel services and advance work against one shared real-time schedule.
MODEL STATUSSite assumptions required
Use this prototype for scenario analysis. Validate every rule against the mine design, PHMPs, ventilation plan and site procedures before operational use.
PILLAR CYCLE10.84 d260.2 h real elapsed time · 119.7 productive CM h/week
NORMALISED ADVANCE64.6 m/wk0.539 linear m/op h · 10.84 d/100 m
DEVELOPMENT RATE2.8 m/op h7 aligned CM stock + ED10 stops at 30 m · 30 min each
CM TIME BASIS95% × 75%159.6 CM-available h/wk · 119.7 productive CM h/wk · process-task hours unchanged
CM MOVES & BREAKAWAY1 flit · 1 breakbreak directly from B at 0.60 m/op h
DYNAMIC PROCESS MAP
Pillar cycle playback
ELAPSEDDay 0.000 min elapsed cycle time
OUTBYE · COMPLETED PILLARSADVANCE DIRECTIONINBYE · CURRENT FACES
TRUE METRE SCALE · A 100 m · B 100 m · CT 37.0 m · roadway 5.4 m
10 m
A heading · 100 m pillar-centre
B heading · 100 m pillar-centre
CT-1STOPPING
CT-2STOPPING
CT-3STOPPINGSTART CRIB · 1 PILLAR OUTBYE
CT-4CRIB · LAST OPEN CT
70° OUTBYECT 37.0 m
P-3
P-2
P-1
SOLID COAL PILLARA/B centres 100/100 m · OD 0.0 m · CT 70° OUTBYE
A Heading
B Heading
B-heading panel belt
EXISTING BAGGED BARRIER
10 m OUTBYE LIMIT
10 m OUTBYE LIMIT
BOOTEND
BREAKER FEEDER
AUX FANleft of feeder
RHS SERVICES · LOOKING INBYE
Compressed air · 6 m pipe lengths
Water · 6 m pipe lengths
Waste water · 6 m pipe lengths
Reticulation
DCB15 m outbye of CT
CM1A CH 0.0 m
SC1SC1 parked over feeder
Roadway cutSolid coalCompressed air pipe · 6 m lengthsWater pipe · 6 m lengthsWaste water pipe · 6 m lengthsReticulationA-heading concrete retreat · wet until cure completeB belt / bootendBagged explosion barrier · 10 bags / 3 mBelt suspension boltsPermanent stopping · one pillar outbyeAuxiliary ventilation tube · LHS looking inbye · retained until belt releaseProcess installations stop 10 m outbye of completed CTED10 stone dust + CM supply · every 30 m · one 30 min aligned holdPer drop · 150 × 6.0 ft roof bolts · 30 mesh sheets2 bulk stone-dust bags behind final auxiliary-fan positionCT leans outbye: B intersection outbye
NOWReady to commence
INTEGRATED SCHEDULE
Resource-loaded process map
Dominant chain
0 min65.0 h130.1 h195.1 h260.2 h
TASK COMPLETION
Playback completion register
0 complete · 0 in progress · 44 not started
No activities complete at this position.
MATERIALS OPERATORS · PILLAR REQUIREMENT
CM supply forecast
Each affected miner receives one supply package at the shared 30 m trigger. Stocking and ED10 work use one aligned production hold, so the delay is counted once at the longer entered duration.
30 MIN · ONE ALIGNED HOLD
SUPPLY DROPS7at 30 m intervalsROOF BOLTS REQUIRED1,0506.0 ft bolts · 150 per dropROOF MESH REQUIRED210sheets · 30 per dropPLANNED STOCKING TIME3.50 hembedded in aligned CM holds
Drop
Forecast opportunity
Place / miner
Chainage
Package to deliver
01
Cycle day 2.4635.0 h elapsed cycle time
A headingCM1 · Mine A heading
CH 30 m
150 × 6.0 ft bolts30 roof-mesh sheets
02
Cycle day 3.1150.6 h elapsed cycle time
A headingCM1 · Mine A heading
CH 60 m
150 × 6.0 ft bolts30 roof-mesh sheets
03
Cycle day 3.7566.1 h elapsed cycle time
A headingCM1 · Mine A heading
CH 90 m
150 × 6.0 ft bolts30 roof-mesh sheets
04
Cycle day 5.19100.7 h elapsed cycle time
B headingCM1 · Mine B heading
CH 30 m
150 × 6.0 ft bolts30 roof-mesh sheets
05
Cycle day 5.84116.2 h elapsed cycle time
B headingCM1 · Mine B heading
CH 60 m
150 × 6.0 ft bolts30 roof-mesh sheets
06
Cycle day 6.91141.7 h elapsed cycle time
B headingCM1 · Mine B heading
CH 90 m
150 × 6.0 ft bolts30 roof-mesh sheets
07
Cycle day 10.32223.7 h elapsed cycle time
Cut-throughCM1 · Cut-through development
CH 30 m
150 × 6.0 ft bolts30 roof-mesh sheets
Planning quantities only. Confirm bolt type, length, resin/consumables, mesh specification, storage capacity, transport method and approved strata-support standard for the panel.
01
LIVE MODEL PREVIEW
A heading → one CM flit → B heading → break directly from B → complete cut-through
Develop A heading first, complete one 4.0 h CM flit to B heading, then break directly from that second heading. The optimiser does not return to the first heading or create a second breakaway. Every enabled weekday maintenance rule repeats every seven days, pauses the continuous miner at day-shift commencement and resumes its allocation afterward. Each 30 m trigger combines CM stocking with the ED10 window as one hold, delivering 150 × 6.0 ft bolts and 30 mesh sheets. An A-first proposal releases the compressed-air, water, wastewater and reticulation ranges with B production after the flit. Concrete waits for A excavation and the CM flit, retreats outbye in 25 m blocks and shares LHD 1 with B-road cleaning. Pipework and reticulation cannot overlap concrete or its 24.0 h cure: the optimiser tests reticulation complete before the concrete campaign or deferred until the full cure release. Eligible process work may be split across maintenance, crew and roadway-access opportunities and resumed later.
Why this winsThis is a rapid preview. Run Optimise Development to search alternative crew and activity orderings before using the proposal.Selected predecessor modelPlanning predecessors remain as configured until optimisation tests retained and unlocked alternatives.Dominant chainRecurring maintenance — Monday · week 1 → Mine A heading → Continuous miner flit A heading → B heading → Compressed air pipe → Waste water pipeSafety boundarySequence logic supports planning only; the approved ventilation, strata, gas, electrical and isolation controls remain authoritative.
CONSTRAINT-FEASIBLE OPTIONS
Cutting strategies
Run the optimiser to move work into compatible parallel and offline windows.
MAINTENANCE OPPORTUNITY PLAN
Recurring maintenance periods in this pillar cycle
Only enabled weekday maintenance rules whose day-shift occurrence starts before pillar-cycle completion are shown. Each period calls out the operational tasks scheduled concurrently with maintenance; overlap hours are limited to that maintenance period.
MONDAY · WEEK 1Cycle day 0.0010.0 h recurring day-shift maintenance
OPERATIONAL WORK IN PARALLEL
Auxiliary fan set-up & ventilation range2.50 h during maintenanceShuttle-car circuit set-up2.00 h during maintenanceSurvey & set-out1.50 h during maintenance
3 operational tasks overlap this selected maintenance period. A split task may resume at a later compatible opportunity.
TUESDAY · WEEK 1Cycle day 1.0010.0 h recurring day-shift maintenance
OPERATIONAL WORK IN PARALLEL
Progressive secondary support & rib works — A heading4.00 h during maintenanceVentilation tube installation while mining — A4.00 h during maintenance
2 operational tasks overlap this selected maintenance period. A split task may resume at a later compatible opportunity.
THURSDAY · WEEK 1Cycle day 3.0010.0 h recurring day-shift maintenance
OPERATIONAL WORK IN PARALLEL
No other operational task scheduled in parallelMaintenance only
No released operational task overlaps this selected maintenance period in the current proposal.
SATURDAY · WEEK 1Cycle day 5.0010.0 h recurring day-shift maintenance
OPERATIONAL WORK IN PARALLEL
A-heading concrete retreat 1/47.63 h during maintenanceProgressive secondary support & rib works — B heading4.00 h during maintenanceVentilation tube installation while mining — B4.00 h during maintenanceA-heading concrete retreat 2/42.37 h during maintenance
4 operational tasks overlap this selected maintenance period. A split task may resume at a later compatible opportunity.
MONDAY · WEEK 2Cycle day 7.0010.0 h recurring day-shift maintenance
OPERATIONAL WORK IN PARALLEL
No other operational task scheduled in parallelMaintenance only
No released operational task overlaps this selected maintenance period in the current proposal.
TUESDAY · WEEK 2Cycle day 8.0010.0 h recurring day-shift maintenance
OPERATIONAL WORK IN PARALLEL
No other operational task scheduled in parallelMaintenance only
No released operational task overlaps this selected maintenance period in the current proposal.
THURSDAY · WEEK 2Cycle day 10.0010.0 h recurring day-shift maintenance
OPERATIONAL WORK IN PARALLEL
B-heading belt & bootend advance5.80 h during maintenanceB-heading roadway clean with LHD3.00 h during maintenanceAuxiliary fan final advance & 2 bulk stone-dust bags2.00 h during maintenanceBreaker feeder advance & set-up1.20 h during maintenance
4 operational tasks overlap this selected maintenance period. A split task may resume at a later compatible opportunity.
MANUAL MODE
Activity logic & durations
Switch work on or off, change its crew and real physical duration, and add site-specific predecessor links. Locked releases protect excavation and physical access. Suggested links can be unticked manually and are automatically tested unlocked when Optimise Development runs.
LOCKED · always enforcedSUGGESTED · optimiser may unlockMANUAL · controlled by userCompatible work may use part of a maintenance window and continue afterwards; it is split only when a physical access or shared-resource closure requires it.
Use
Activity
Duration
Predecessor(s)
Resource
Location
Assurance
h
No predecessor
Infrastructure
h
Survey & set-out
Infrastructure
h
Auxiliary fan set-up & ventilation range
Infrastructure
h
Shuttle-car circuit set-up
Infrastructure
h
Shuttle-car circuit set-up
Infrastructure
h
Shuttle-car circuit set-up
Services
h
Mine A heading, Continuous miner heading flit
Services
h
Mine A heading, Continuous miner heading flit
Services
h
Mine A heading, Continuous miner heading flit
Electrical
h
Mine A heading, Continuous miner heading flit
Materials
h
No predecessor
Materials
Per 30 m plan
No predecessor
Maintenance
Per weekly plan
No predecessor
Relocation
h
Cut-through hole-through
Infrastructure
h
Park face haulage equipment & breaker feeder
Infrastructure
h
Park face haulage equipment & breaker feeder, Stopping advance & ventilation controls, Ventilation tube installation while mining — A, Ventilation tube installation while mining — B
Infrastructure
h
Mine B heading
Infrastructure
h
Mine B heading
Infrastructure
h
Park face haulage equipment & breaker feeder, Recover ventilation tube for belt advance, B-heading explosion barrier installation, Belt suspension bolt installation, Breaker feeder advance & set-up, B-heading roadway clean with LHD
Infrastructure
h
Park face haulage equipment & breaker feeder, Recover ventilation tube for belt advance, B-heading explosion barrier installation, Belt suspension bolt installation
Infrastructure
h
Breaker feeder advance & set-up
Infrastructure
h
B-heading belt & bootend advance, Park face haulage equipment & breaker feeder
Infrastructure
h
Breaker feeder advance & set-up
Electrical
h
Reticulation cable installation, B-heading belt & bootend advance
Electrical
h
Transformer move
Electrical
h
Direct circuit breaker advance
Materials
h
Mine A heading, Mine B heading, Cut-through hole-through
Assurance
h
Breaker feeder advance & set-up, Auxiliary fan final advance & 2 bulk stone-dust bags, Direct circuit breaker advance, Compressed air pipe, Water pipe, Waste water pipe, Stopping advance & ventilation controls, Cribroom advance, Stone dust & roadway standard
COMPARE
Scenario register
Save each optimised option, then use the comparison workspace to rank different pillar lengths and operating-hour assumptions on equivalent linear advance.
CURRENT MODEL64.6 m/week
10.84 days · 100.0 m actual panel advance
119.7 effective h/week · 0.539 linear m/op h including process work
NO SAVED COMPARISON
Optimise this model, save it, then change the pillar geometry or operating assumptions and repeat.
MODEL BASIS
Built for transparent improvement work.
Optimise Development runs a deterministic bounded beam search across every valid outbye cut-through strategy and a broad frontier of alternative precedence-feasible task orders. Because the belt road is in B heading, inbye geometry is removed. Below 85°, only B-heading breakaways are evaluated; from 85° to 90°, valid A- and B-heading breakaway schedules are compared. Up to 32 ready activities are branched at each decision state and the best 600 competing schedules are retained at each depth. The search tests user-editable suggested predecessors both retained and unlocked, while protected operational releases are always re-applied: pipework and reticulation wait for A-heading excavation; electrical cable must finish before concreting or wait until the full cure releases; progressive ventilation-tube and secondary-support work releases only after its heading starts and uses shuttle-clear maintenance gaps; concrete waits for A excavation and any required flit; B-road barrier and suspension work wait for B-heading excavation and shuttle-clear access; B-road LHD cleaning follows the feeder advance; and the conveyor waits for that clean. Compatible tasks can use part or all of maintenance; unfinished work resumes at the next compatible gap.
The 168 roster h/week × 95% availability × 75% utilisation time basis, 4 h CM flit, 6 m in 10 h breakaway, 25 m per 12 h concrete retreat, 24 h cure and 3 h B-road clean are transparent reference assumptions, not a claim about any mine’s standard. This model assigns one shuttle car to a single-miner panel and two dedicated shuttle cars to a super unit; validate simultaneous wheeling, LHD traffic, concrete specifications and curing, feeder capacity, interactions and ventilation against the approved mine arrangements. The displayed 10 bags per 3 m explosion-barrier arrangement is the entered site modelling rule, not a universal barrier design; validate its type, mass, distribution, location, installation and maintenance against the approved mine standard. The entered MPOH must already reflect site haulage delays.
Development Optimisation Applications | Gateroad Pillar Cycle Model