Selection begins with orebody geometry, depth, grade distribution and the strength of the ore and surrounding rock. Engineers compare naturally supported, artificially supported and caving approaches, then evaluate expected recovery, dilution, development requirements, production rate and cost. Geological structures, groundwater and the in situ stress field can rule out otherwise attractive methods. For example, a broad, shallow-dipping deposit may suit room-and-pillar extraction, while a steep, competent orebody may favour longhole stoping. Weak ground may require cut-and-fill support or a carefully engineered caving approach. The preferred method must remain technically feasible across the planned extraction sequence, not merely within one representative stope. ref
Orebody thickness, dip, continuity and lateral extent strongly influence access and extraction design. Flat or gently inclined tabular deposits commonly permit room-and-pillar layouts, whereas steep, continuous deposits can accommodate longitudinal or transverse stopes. Narrow irregular veins may need selective cut-and-fill mining to limit waste inclusion. Large massive orebodies may support high-capacity caving if the rock mass is suitably fractured and cave propagation is predictable. Planners also consider how quickly geometry changes along strike and down dip, because a method that performs well in one zone may become uneconomic or unsafe elsewhere. Geological interpretation therefore determines both the initial method and the boundaries where alternative methods may be required. ref
Rock mass quality indicates how excavations are likely to behave after mining redistributes stresses. Intact rock strength alone is insufficient: joints, bedding, faults, alteration and water can control failure. Engineers use mapping, core logging, laboratory testing and classification systems to estimate the stability of proposed spans and exposed walls. Poor-quality rock may require smaller stopes, additional support, reduced exposure time or a different extraction method. Competent ground can permit larger openings but may still experience stress-driven failure at depth. Rock mass assessments should be updated as development exposes new conditions. The resulting designs combine analytical predictions with observational monitoring and clear operating limits. ref
Faults, shear zones, bedding contacts and joint sets can form weak planes around openings and change groundwater pathways. A stope intersecting a major fault may experience unexpected dilution, wedge failures or a loss of hanging-wall stability. Mine designers map the orientation, persistence and mechanical properties of these features before placing access drives, pillars and extraction boundaries. Development can be redirected away from major structures, while stope dimensions and support can be adjusted where avoidance is impossible. The interaction between discontinuities and induced stresses must also be considered throughout the sequence. Regular geological reconciliation is important because the detailed position and condition of structures may differ from the original model. ref
Room-and-pillar mining generally suits extensive, relatively flat deposits where the roof and ore pillars can support the overburden. Feasibility depends on deposit thickness, depth, rock strength, stress conditions and the proportion of ore that must remain in pillars. Engineers calculate room spans and pillar dimensions to balance recovery against stability. A layout must also provide access, ventilation and safe equipment movement. Weak roofs, high horizontal stresses or irregular mineralisation may require additional support or different panel arrangements. Where pillars are later recovered, the retreat sequence creates different hazards and requires a separate design. Economic evaluation must account for the ore left behind as well as development and operating costs. ref
Cut-and-fill mining is particularly useful for steep, narrow or irregular deposits where selectivity and ground support are important. Ore is extracted in successive slices, with the void filled before the next slice is mined. This approach can reduce exposed spans and provide a working platform, making it attractive where wall rock is weak or mineralisation changes rapidly. Compared with large open stopes, it generally requires more production cycles and can have higher unit costs. However, improved recovery and lower dilution may compensate for the extra work. Designers must specify fill strength, curing requirements, access arrangements and the sequence of adjacent stopes to maintain stability. ref
Sublevel stoping works best where a relatively steep and continuous orebody has sufficient thickness for production drilling and where the surrounding rock can remain stable during extraction. The ore is divided into stopes accessed from sublevels, and longholes are blasted toward a free face. Geological continuity supports predictable drilling and limits dilution at the ore contacts. Weak hanging walls, variable thickness or closely spaced faults can reduce performance by causing overbreak. Engineers assess allowable stope spans, the planned extraction sequence and the possible need for cemented backfill. Successful designs integrate geological boundaries with drill accuracy, blasting requirements and practical mucking access. ref
Block caving depends on a large orebody and a rock mass that can fracture and propagate a cave after undercutting. Planners evaluate depth, stress, jointing, fragmentation, ore value and the shape of the potential cave column. Caveability is not determined by rock strength alone; structure, confinement and undercut geometry also matter. The method requires major investment in undercut, extraction, haulage and materials-handling infrastructure before full production. Engineers must predict cave growth, drawpoint performance, dilution entry and possible surface subsidence. A feasibility study also tests production ramp-up and the consequences of delayed cave propagation, since these can materially affect project economics and safety. ref
Sublevel caving is considered for steep or massive deposits where the hanging wall can progressively collapse as ore is blasted and withdrawn from successive production levels. Engineers assess orebody continuity, fragmentation, ground stresses and the interaction between broken ore and caved waste. Because the method relies on drawing material near a waste interface, dilution and ore loss must be explicitly modelled. Level spacing, ring design and draw strategy affect recovery and production efficiency. Planning also covers cave propagation, surface subsidence, ventilation and safe access below the cave. Geological variability can change the draw response, so production reconciliation and adaptive draw controls are essential. ref
Dilution is unwanted waste entering the extracted material, while recovery measures the proportion of valuable ore successfully mined. Both depend on method, orebody geometry, ground behaviour and operating precision. Large stopes may deliver high production rates but can suffer hanging-wall overbreak. Selective methods may protect grade yet require additional development and smaller equipment. Pillar-supported methods can leave significant ore underground, while caving methods face mixing and draw-related losses. Engineers therefore compare recovered metal or saleable product rather than tonnes mined alone. Reconciliation between geological models, surveyed voids and processed grades is necessary to refine design assumptions and identify whether changes to extraction sequence or stope dimensions are justified. ref
Increasing depth generally raises in situ stress, rock temperature, hoisting demand and the complexity of access and ventilation. High stresses can damage development openings, trigger seismic events and constrain stope spans or extraction sequences. Deep mines may require yielding support, regional pillars or carefully staged extraction to manage stress redistribution. The economic comparison also changes because travel distances, cooling and materials handling become more demanding. Depth does not automatically favour one method: geological structure, orebody geometry and rock mass response remain decisive. Designers use stress measurements, numerical models and experience from nearby excavations to establish safe layouts and update them as mining progresses downward. ref
Mine access is planned around production depth, expected throughput, orebody location and the lifetime of the operation. Declines offer flexible vehicle access, while shafts can support efficient vertical movement at substantial depth and scale. Internal ramps, levels, crosscuts, raises and ore passes connect the mining areas to haulage and services. Engineers coordinate development with ventilation, escape routes, pumping, power distribution and ground support. Access should permit early ore production without compromising later extraction or creating excessive travel distances. The layout must also account for geological hazards and the sequencing of stopes or panels. A staged development schedule links capital spending to the availability of productive mining fronts. ref
Backfill may provide regional support, confine stope walls, reduce exposed voids and enable recovery of adjacent pillars. Mine planners choose between waste-rock, hydraulic, paste and cemented fill according to strength requirements, available materials and delivery constraints. Fill performance depends on particle size, binder content, water management, placement method and curing time. A sequence that mines secondary stopes against cemented fill must specify the strength required before adjacent extraction. Engineers also assess fill-retaining barricades, drainage, quality assurance and potential failures. Because filling can govern the production cycle, its plant capacity and distribution infrastructure must be integrated into scheduling rather than treated as an auxiliary service. ref
Groundwater affects excavation stability, working conditions, equipment reliability and the feasibility of particular extraction sequences. Water-bearing faults or fractured zones can increase inflow and weaken rock or fill interfaces. Mine planners investigate hydraulic conductivity, pore pressure, aquifer connectivity and potential connections to old workings. They then design drainage, pumping, grouting and monitoring systems suitable for the anticipated inflows. A method that creates extensive fractures or caves may change water pathways and introduce additional uncertainty. Water management also affects environmental permitting and closure obligations. Hydrogeological models should therefore be updated with actual inflow data as development proceeds and new structures are encountered. ref
Underground mine plans are tested through sensitivity analysis and alternative schedules rather than a single forecast. Key variables include grade, dilution, recovery, development productivity, equipment availability, energy costs and commodity prices. Engineers compare mining methods under realistic operating constraints, including ventilation capacity, backfill cycles and the number of accessible faces. Scenarios should also account for geotechnical delays, unexpected faults and changes in orebody continuity. A method with a low theoretical cost may be less attractive if it demands high initial capital or offers limited flexibility. Decision makers use risk-adjusted cash-flow models and staged studies to determine whether the proposed method remains robust under plausible changes in assumptions. ref
You as the operator of a large mine know best how difficult and stressful it can be to precisely locate your entire workforce in time with the blast schedule. Harsh environments like mines are places where safety matters most. Blocked tunnels, disrupted communication lines and blackouts will make an evacuation a chaotic nightmare even for a well-trained team. Locating employees in a timely manner is crucial.
Crew Companion by Identec Solutions
Room-and-pillar operations excavate a network of rooms while leaving engineered pillars of mineralised material to support the roof. Development establishes entries, crosscuts and ventilation circuits before production advances across the panel. Coal operations may use continuous miners, while hard-rock operations commonly employ drilling, blasting, loading and hauling. Pillar dimensions and room spans must follow the approved ground-control design. Crews inspect roof conditions, install reinforcement where specified and maintain safe equipment routes. Production sequencing should avoid isolating workers or concentrating loads in vulnerable pillars. Where retreat extraction is planned, it follows a separately engineered sequence with tighter controls because the support system changes as pillars are removed. ref
Longhole open stoping typically begins with developing drilling and extraction levels, establishing a slot or free face, and preparing production rings. Drill rigs create long blastholes according to the approved pattern. After charging and firing, broken ore falls toward drawpoints where remotely operated or conventional loaders recover it under controlled conditions. The sequence continues through successive rings until the designed stope volume is extracted. Survey measurements and production reconciliation identify overbreak, underbreak and remaining ore. Depending on the regional mining sequence, the void may then be backfilled before adjacent stopes are mined. Drill accuracy, fragmentation and wall stability strongly influence cycle time and recovery. ref
Cut-and-fill mining removes ore in relatively thin slices and replaces the excavated space with engineered fill. Development provides access to the first slice, after which drilling, blasting, mucking and ground support are completed. The void is prepared and filled to the specified elevation, with drainage and curing requirements checked before personnel and equipment return. The next slice is then mined from the new working platform or beneath previously placed fill, depending on the method variant. Repeating these cycles allows selective extraction of irregular ore and limits the size of unsupported openings. Operational performance depends on reliable fill delivery, short changeover times and careful coordination between mining and fill crews. ref
Block caving begins with substantial development of the undercut, extraction level and ore-handling system. Undercutting removes support beneath the orebody, allowing fractures to develop and the ore mass to cave under gravity. Fragmented material flows toward drawbells and drawpoints, where loaders or other handling equipment extract it according to a controlled draw plan. Production is increased as the cave establishes and the extraction system becomes available. Operators monitor cave propagation, fragmentation, drawpoint condition and ground deformation. The method can deliver high tonnage, but delays in cave growth, oversize material and infrastructure damage can constrain output. Continuous reconciliation between planned and actual draw is necessary. ref
Longwall mining extracts a broad coal panel using a mechanised cutting machine and powered roof supports that advance with the face. The roof behind the supports is generally allowed to collapse into the goaf as mining progresses. Room-and-pillar mining instead leaves a pattern of pillars to carry the roof load, at least during the initial extraction phase. Longwall systems can achieve high output from a concentrated production face but demand extensive panel preparation, reliable equipment and carefully managed ventilation. Room-and-pillar layouts can offer multiple working places and greater flexibility. The choice depends on seam continuity, roof conditions, production targets, capital availability and the behaviour of surrounding strata. ref
Shrinkage stoping is traditionally used in steep, relatively narrow orebodies with sufficiently competent walls. Miners blast successive slices upward, leaving much of the broken ore in the stope to provide a working platform and temporary wall confinement. Only enough material is drawn to create space for the next blast. After the upper limit is reached, the remaining broken ore is removed in a final drawdown phase. This arrangement can limit early ore delivery and expose workers to demanding access conditions. Modern applications are therefore selective and must consider ventilation, ground support, draw control and mechanisation. The method should not be confused with cut-and-fill, where placed fill replaces extracted ore. ref
Drilling and blasting arrangements reflect the excavation geometry and the intended direction of rock movement. Development headings typically use short rounds with a cut that creates a free face. Longhole stopes use production rings drilled from established sublevels, while cut-and-fill methods employ smaller blasts to protect ore boundaries and adjacent support. Caving methods use blast designs that promote fragmentation and controlled progression of the cave front. Engineers select burden, spacing, hole orientation and charging to meet fragmentation and vibration limits. Operators verify drilling accuracy and adjust patterns using surveyed results. Poor blast control can increase dilution, damage pillars and ground support, or create oversize material that disrupts loading. ref
Ore handling begins at the working face or drawpoint, where loaders collect fragmented material. Load-haul-dump machines may carry it to trucks, ore passes or underground crushers, depending on distance and mine layout. Trucks commonly serve declines and intermediate haulage levels, while conveyors and hoists can handle large sustained tonnages. Method selection affects this system: large caving mines need dependable drawpoint-to-crusher capacity, whereas selective stoping may require flexible mobile equipment. Designers seek to minimise rehandling, congestion and equipment interaction. Operators monitor cycle times, fragmentation, ore-pass condition and bottlenecks. Reliable haulage also depends on roadway maintenance, ventilation, traffic separation and timely removal of oversize rock. ref
Draw control regulates how much fragmented material is removed from each drawpoint or production ring. In block caving, coordinated draw helps maintain cave propagation, manage stresses and reduce uneven depletion. In sublevel caving, it also limits the amount of caved waste mixed into the ore stream. Excessive draw may accelerate dilution or create undesirable ground responses, while insufficient draw can strand valuable material and distort the production schedule. Operators combine planned tonnage limits with grade sampling, fragmentation observations, equipment data and geotechnical measurements. The strategy is revised as the cave develops and actual flow differs from the model. Draw discipline is therefore both a recovery measure and a ground-management control. ref
Primary and secondary stoping divides an orebody into extraction units that can be mined while maintaining regional stability. Primary stopes are generally extracted first and, where required, filled with material engineered to provide support. Secondary stopes are then mined between the filled openings after the specified strength and curing conditions have been achieved. The arrangement can increase ore recovery by reducing the need for permanent mineralised pillars. Engineers determine the order from stress modelling, rock mass quality and the strength of exposed fill faces. Operations must verify fill placement, monitor deformation and prevent premature extraction beside uncured material. Sequence changes require geotechnical review because they alter load paths throughout the mine. ref
Backfilling creates a production stage between extraction cycles and can determine when neighbouring stopes become available. Once a stope is emptied, crews inspect it, prepare barricades and delivery lines, and place the specified fill. Quality checks assess mixture consistency, placement conditions, drainage and, for cemented systems, strength development. Equipment access and adjacent blasting may be restricted until engineering release criteria are satisfied. An interruption at the fill plant can delay multiple mining areas, even when drilling and loading equipment remain available. Mine schedules therefore balance stope extraction with fill capacity and curing time. Good coordination reduces idle periods while preserving the support function required by the chosen method. ref
Performance measurement should reflect the mining method rather than rely only on tonnes produced. Useful indicators include development advance, drilled metres, blast yield, equipment utilisation, dilution, ore recovery and cost per recovered unit of metal. Open stoping operations monitor stope reconciliation and backfill cycle times, while caving mines also assess drawpoint availability, fragmentation and draw compliance. Room-and-pillar mines track panel advance and pillar performance. Operators compare actual results with geological and production models to identify systematic losses. Safety, ground support and ventilation constraints must remain visible in reporting so that higher output is not achieved by transferring unacceptable risk to workers or future extraction stages. ref
Equipment selection depends on excavation dimensions, production rate, travel distance, ground conditions and the degree of mechanisation possible. Narrow-vein cut-and-fill mines may need compact drills and loaders, whereas large longhole stopes can support higher-capacity production equipment. Caving operations require reliable drawpoint access and ore-handling capacity, and longwall coal mines depend on integrated cutting, conveying and powered support systems. Engineers assess turning radii, gradients, power supply, ventilation demand, maintenance access and automation readiness. Matching machine capacity to downstream haulage is important because an oversized loader offers little benefit when ore passes or crushers are constrained. Equipment choices should also support safe pedestrian separation and emergency access. ref
Automation is most effective when designed around the production method and its operating boundaries. Remote loaders can remove personnel from exposed drawpoints, while automated drilling improves consistency in longhole patterns. Caving mines may use integrated dispatch and draw-control systems to coordinate extraction across many headings. Reliable communications, machine localisation and clear exclusion zones are essential to avoid conflicting movements between people and equipment. Operators also need procedures for abnormal conditions, maintenance access and safe recovery after a system fault. Automation does not remove the need for geotechnical inspections or supervisory decisions. Its main value is to improve repeatability, availability and separation from hazardous areas without compromising operational control. ref
Underground operations frequently encounter conditions that differ from the resource model. Ore thickness may narrow, faults may interrupt continuity or wall stability may deteriorate as mining advances. Engineers respond by adjusting stope dimensions, changing extraction direction, increasing support or switching to a more selective method. A longhole stoping area may require local cut-and-fill extraction where dilution would otherwise become excessive. Changes must be assessed for ventilation, access, backfill and regional stress effects rather than treated as isolated production decisions. Geological mapping, survey reconciliation and geotechnical monitoring provide the evidence for adaptation. Formal change management ensures that revised layouts, procedures and exclusion zones reach the crews before work begins. ref
Maintain visibility of all your staff members at all times during operations. Built according to strict industry guidelines and drawing on best practices, Crew Companion enables effective and reliable operations without needing any human interaction in day-to-day situations, as well as emergencies.
Crew Companion by Identec Solutions
Different methods expose workers to different combinations of ground, equipment and environmental hazards. Room-and-pillar mining depends on roof and pillar stability, while open stoping introduces large exposed voids and potential wall failures. Cut-and-fill relies on sound backfill and safe work platforms. Caving methods deliberately permit rock mass collapse, requiring strict separation between active workings and cave-affected zones. Longwall coal mining adds complex strata and methane management challenges. Safety planning must therefore begin with the selected method and extraction sequence, not with generic mine-wide rules alone. Controls should include engineered layouts, monitoring, competent inspections, exclusion arrangements and clear authority to suspend work when conditions depart from design assumptions. ref
Rockfall prevention starts with geological assessment, excavation design and installation of support suited to the expected failure mechanisms. In development headings, bolts, mesh, shotcrete and scaling reduce exposure to loose rock. Open stopes also require control of wall spans, blast damage and the time openings remain exposed. Engineers monitor deformation and use surveys to identify unexpected overbreak or instability. Workers should not enter unsupported ground or stand beneath suspect surfaces, and remote equipment can reduce exposure at dangerous drawpoints. Inspection findings must trigger timely changes to support or access restrictions. The objective is to prevent unstable ground from reaching occupied workplaces rather than relying solely on protective equipment. ref
Pillar extraction changes the support system that has carried the roof during earlier mining. Removing pillars transfers load to neighbouring pillars and surrounding strata, potentially causing sudden failures or extensive roof collapse. The retreat sequence must therefore be engineered with suitable pillar geometry, support, monitoring and clearly defined limits of work. Crews need reliable escape routes and procedures that keep them away from unstable areas as the extraction front moves. Unplanned pillar removal, excessive room width or mining out of sequence can undermine the design. Operators must also consider interactions with old workings and overlying seams. Work should stop when observed ground behaviour exceeds the assumptions or thresholds established by the ground-control plan. ref
Block-caving drawpoints are exposed to changing loads, moving fragmented rock and frequent heavy-equipment activity. Hazards include sudden material movement, brow damage, oversize boulders, blocked openings and deterioration of nearby support. Mine operators inspect drawpoint conditions, maintain engineered reinforcement and restrict access when deformation or unusual movement is observed. Secondary breaking must follow specific exclusion and energy-control procedures. Remote or automated loading can reduce the time personnel spend near hazardous brows. Draw strategies should also avoid uneven extraction that could worsen stress concentrations. Monitoring information needs to be linked to operational decisions so that a damaged drawpoint can be isolated before it becomes a serious incident. ref
Deep extraction redistributes stresses around stopes, pillars and development openings, sometimes causing seismic events and rockbursts. Seismic monitoring helps engineers identify event locations, energy patterns and changes associated with mining sequences. It is particularly useful when combined with stress models, geological mapping and observations of support performance. A monitoring network does not prevent seismicity by itself, nor can it guarantee precise prediction of individual events. Mine operators use its findings to adjust extraction sequences, reinforcement, re-entry rules and exclusion zones. Personnel accountability information can complement seismic data by identifying which occupied areas may be exposed. Decisions should follow predefined response procedures rather than informal interpretation of isolated signals. ref
Blasting controls must ensure that no person remains within the defined danger area when explosives are initiated. The mine establishes blast boundaries, withdrawal routes, guards or barriers and a positive clearance procedure suited to the excavation layout. Supervisors confirm personnel and equipment status before authorising firing. In interconnected underground workings, blast effects may extend through ventilation paths or adjacent excavations, so boundaries cannot be based only on direct distance. After firing, re-entry depends on ventilation, gas testing, ground inspection and formal clearance. Electronic workforce accountability can support the process, but it does not replace physical checks or the responsible person’s authorisation. All deviations and unexplained personnel counts require resolution before blasting proceeds. ref
Ventilation requirements depend on the number and distribution of active headings, equipment emissions, blasting fumes, heat and any gases released from the deposit. Room-and-pillar and longwall coal mines require carefully managed circuits to control methane and respirable dust. Mechanised hard-rock mines must dilute diesel emissions and clear blast gases from development and stoping areas. Caving layouts introduce changing airflow paths as production and collapse progress. Engineers design primary and auxiliary ventilation together with the extraction sequence, including isolation of abandoned areas. Monitoring confirms airflow direction and atmospheric quality at occupied workplaces. A method that creates many dispersed faces can demand a different ventilation strategy from one with concentrated production. ref
Underground loaders, trucks and service vehicles operate in confined spaces with restricted visibility, steep gradients and frequent interaction with pedestrians. Collisions, crushing incidents and loss of control can occur near drawpoints, intersections, workshops and loading bays. Different mining methods create different traffic patterns: caving mines concentrate equipment at extraction points, while cut-and-fill operations repeatedly move machines between small working areas. Controls include roadway design, speed management, traffic separation, lighting, communications and proximity-detection technology where appropriate. Operators must also maintain braking systems and define safe procedures for reversing and remote operation. Vehicle movement should be coordinated with blasting, maintenance and personnel access to reduce conflicting activities. ref
Emergency accountability requires a reliable record of who is underground, their assigned work areas and their status during an incident. Large mines with several production levels, contractors and mobile crews can struggle when manual records are incomplete or communications fail. Electronic identification and zone-based presence information can support muster checks and help emergency controllers prioritise searches. However, untagged personnel, damaged infrastructure and delayed updates remain possible, so alternative checks and trained response teams are necessary. The mine should designate refuge locations, communications arrangements and evacuation routes appropriate to the extraction layout. Regular drills should test whether personnel counts reconcile and whether supervisors can identify people who have not reached safety. ref
Backfilled stopes can create hazards if the fill has inadequate strength, contains excessive water or is exposed before it has cured. Workers may face failures of fill walls, barricades or unsupported edges when mining adjacent openings. Engineers specify fill mixtures, placement procedures, drainage and minimum strength criteria for each planned exposure. Quality assurance includes sampling, laboratory tests and inspection of retaining structures. Access restrictions should remain in place until authorised personnel confirm the required conditions. Blasting beside cemented fill must also account for vibration and possible damage. Backfill is an engineered component of the ground-support system, so changes to its composition or placement cannot be treated as routine production adjustments. ref
Caving operations can produce progressive ground movement that extends beyond the immediate production area and may eventually affect the surface. Mines establish exclusion zones based on cave models, observed deformation and the potential for sudden breakthroughs. Access controls, barriers and signage prevent people and vehicles from entering affected workings or surface areas. Survey instruments, seismic monitoring and inspections help identify changes in cave behaviour. The boundaries must be reviewed as extraction progresses rather than fixed permanently at the beginning of the project. Emergency planning also considers possible impacts on ventilation, water pathways and infrastructure. Safe caving depends on keeping occupied areas separated from ground that is intentionally or unpredictably collapsing. ref
Emergency escape and refuge provisions must be integrated with the planned excavation network. Mine designers identify primary and alternative routes from production areas to safe exits, considering the possibility that a fire, collapse or equipment incident may block a roadway. Refuge chambers provide temporary protection when evacuation is not possible, but their capacity, location, communications and supplies must match the workforce distribution. Extraction methods that create changing access, such as caving or retreat mining, require regular route reviews. Maps, signs and personnel training should reflect current workings rather than outdated development plans. Drills test travel times, accountability and whether workers can reach designated safe locations under realistic conditions. ref
Old workings may contain unstable ground, accumulated water, hazardous gases or undocumented excavations. New development or stoping near these areas can trigger breakthroughs, inundation or unexpected stress interactions. Operators review historical plans, conduct targeted drilling and geophysical investigations where appropriate, and establish protective barriers based on the level of uncertainty. Mining boundaries and exclusion zones should be formally approved before work approaches suspected voids. Ground and water monitoring may be needed during excavation. The hazard is not limited to abandoned mines: active operations can also intersect older levels whose support has deteriorated. Accurate survey control and communication between geology, engineering and production teams are essential to prevent accidental entry. ref
Remote and autonomous machines can keep operators away from unstable drawpoints and other high-risk locations, but they introduce control-system and interaction hazards. The mine must define operating zones, entry permissions, emergency stops and procedures for recovering stalled equipment. Reliable localisation and communications are necessary, especially where automated vehicles share routes with conventional machines. Maintenance work requires positive isolation so that unexpected movement cannot occur. Changes to traffic routes or mining sequences must be reflected in the automation configuration and workforce instructions. Operators should test fail-safe behaviour and train personnel to recognise system limitations. Automation improves safety only when its technical controls are supported by disciplined operational procedures and clear accountability. ref
Underground safety reviews should compare actual conditions with the assumptions used to approve the mining method. Engineers examine ground movements, support performance, seismicity, ventilation changes, dilution, equipment incidents and the effectiveness of exclusion zones. Production reconciliation may reveal overbreak or unexpected cave behaviour that has direct safety implications. Workers should be able to report unusual conditions without pressure to maintain output. Formal reviews are particularly important before mining adjacent to filled stopes, recovering pillars or entering new geological domains. Corrective actions need assigned owners and verification in the field. A method remains safe only when monitoring, operating practice and mine design evolve together as extraction changes the rock mass. ref
Where difficult conditions exist and your nearest exit is kilometres away, Crew Companion is the answer for the safety of your staff: a scalable and customisable personnel monitoring solution specifically designed to meet your organisation’s safety needs in the mining industry. Ensure your underground and open-pit operations are visible and therefore manageable – all in line with the most advanced HSE and business requirements.
Crew Companion by Identec Solutions
Mining Industry:
Underground Mining | Surface and Open-Pit Mining | Hard-Rock Mining | Coal Mining | Metal and Non-Metal Mining | The Mining Lifecycle | Mining Companies and Stakeholders | Mining Jobs and Roles | Digital Mining and Mine Automation | Sustainable and Responsible Mining
Production Process:
Mineral Exploration and Resource Definition | Mine Planning and Design | Underground Mine Development | Drilling and Blasting | Underground Mining Methods | Loading, Hauling and Transportation | Material Handling and Conveying | Crushing, Grinding and Mineral Processing | Waste Rock and Tailings Management | Mine Closure and Rehabilitation
Safety:
Mine Safety Management | Workforce Accountability | Underground Access and Qualification Control | Emergency Preparedness and Response | Mine Evacuation and Mustering | Mine Rescue Operations | Blast Clearance and Re-Entry | Vehicle Collision Avoidance | Ventilation and Gas Monitoring | Ground Control and Rock-Fall Prevention
Geographical Areas and Regions:
Mining in Australia | Mining in Canada | Mining in Sweden and the Nordic Region | Mining in Chile | Mining in Peru and the Andes | Mining in Southern Africa | Mining in the United States | Mining in Central and Western Europe | Mining in West Africa | Mining in Arctic and High-Altitude Regions
Mining Equipment and Technology:
Drilling Rigs and Mining Jumbos | Load–Haul–Dump Machines | Underground and Surface Haul Trucks | Continuous Miners and Roadheaders | Crushers, Conveyors and Hoisting Systems | Mine Ventilation and Dewatering Equipment | Personal Protective and Self-Rescue Equipment | Underground Communication Networks | Personnel Positioning and Proximity Detection | Autonomous and Remote-Controlled Mining Equipment | Underground Network