Underground Mining TRIZ Cases

Rotatable side flaps around a conveyor create expandable ore storage, boosting fill rate and haul volume within mine tunnel size limits.

Vertical ray casting on a 3D tunnel model resolves z-coordinate ambiguity from 2D underground vehicle position data.

Vertical ray casting in a 3D tunnel model resolves z-coordinates from 2D tracking data, removing ambiguity in overlapping underground tunnels.

Rotating laser scans and reflective reference patterns give underground mining machines absolute position data without satellite signals or inertial drift.

Automated sensor-based spacing control keeps milling and transport units aligned for safer, collision-free unloading during rail maintenance.

Controlled borehole grouting with a static crushing agent weakens roof rock around anchor cables, enabling safer withdrawal and timely caving.

Accelerometers and gyroscopes replace laser alignment to guide rotary boring machines through undulating seams with less recalibration and downtime.

Spiral-embedded wire in a conductive plastic tube improves current delivery, corrosion resistance, and electrode retrieval for lower-cost rare earth mining.

Tracks a rotating reflector or arm with a 3D camera or LiDAR to locate a work machine's slewing axis accurately in GNSS-limited sites.

Three RF positioning devices on each machine map relative geometry for accurate underground loading navigation without fixed anchors.

Combining 2D LiDAR, ToF imaging, and a sensorized probe enables accurate underground blasthole detection, alignment, and internal geometry checks.

Automatic cover positioning protects a drill rig scanning device from debris during drilling while opening for navigation and safety sensing.

Detected milling drum features let the control unit set suitable machine parameters, reducing tool wear, energy use, and setup errors.

Maps earthworks tool position to site tasks to capture location-specific emissions, energy use, and elapsed time for method selection.

High-pressure gas jets and self-driving radial drill bits boost coal-seam permeability, cutting borehole count and drainage workload.

In-situ formaldehyde resin foam stemming improves explosive energy containment in mining blastholes while reducing noise, dust, and plug installation burden.

LIDAR volume checks flag bucket spillage and carry-back while guiding excavator dipper trajectories for higher mining throughput.

Continuous double-transport backfilling combines coal waste adsorption with cemented compression to limit groundwater pollution and keep mining in sync.

An expandable void former creates a sealed passage during stope backfill curing, avoiding bulkhead removal and restoring drilling access sooner.

Winch cables move an equipment deck through a mine raise, reducing operator exposure and travel during remote drilling and blasting.

Flow sensors and controllable valves regulate leaching lines while automated flushing mitigates clogs, leaks, and uneven mineral extraction.

Low-pressure barrier-wall grouting protects coal pillars before high-pressure sealing limits slurry and water loss in goaf repairs.

Penannular borehole strings create nodal fluid paths for controlled resource recovery while reducing surface footprint and disposal needs.

A TBM retracts through a grout-supported sequence and follows an S-curve to bore parallel mine tunnels with less ground disturbance.

An oscillating mining cutter head uses eccentric mass, sensing, and feedback to balance rock-cutting power with seal and bearing life.

Segmented plunge cuts with inert gas supply reduce personnel exposure to hazards while lowering capital expenses compared to long wall mining.

Modular prefabricated track sections replace costly in-situ concrete, allowing flexible expansion and reduced construction costs for inclined conveyor systems.

A hierarchical control system manages autonomous operators across defined geographical zones using primary and secondary controllers.

Segmented cabin architecture converts coal into energy underground, eliminating surface transportation costs and reducing environmental pollution.

Segmented permeable tubes create cavities in backfill, accelerating drainage speed and eliminating costly raise construction delays.

A shearing system uses distributed inclinometers on consecutively arranged pans to detect the geometric profile of the pan line for precise arm control.

Aerial rope hoist system replaces ground trucks with cable trolleys to reduce road maintenance costs.

Coal mining machine cuts haulageways and return airways directly into the working face to eliminate separate tunnel excavation.

Dynamic truck speed adjustment synchronizes with milling feed rates to resolve loading unevenness while minimizing inter-machine communication overhead.

Array sensors capture rock fragmentation sounds, enabling engineers to identify voids and optimize extraction.

Segmented soil layers with varying compaction and permeability resolve the trade-off between structural stability and water retention capacity.

A zoned coal caving and filling mining method divides the working face into alternating zones to manage mine pressure.

Segmenting transport into one-way routes eliminates turning places, reducing infrastructure complexity while maintaining convoy adaptability.

A prediction device calculates ore mixing ratios based on soluble metal ratios and mineral content percentages to determine target recovery rates.

A mine mining system uses a dedicated loading machine to excavate ore and convey it to a traveling transporting machine for continuous shaft transit.

Segmented full-face boring machine modules reduce assembly time and improve maneuverability for complex transverse tunnel networks.

Thin slicing cutting devices extract coal between boreholes to achieve large-scale pressure relief without damaging surrounding rock formations.

A separation tank uses a low pipe outlet to create turbulent slurry flow for density-based particle settling.

A voxel representation system assigns quantified material characteristics to mining areas for real-time visualization.

Segmented directional drilling with water stop casings drains isolated goafs, resolving trajectory deviation and incomplete drainage.

A satellite coverage determination system modifies mobile mine work machine tasks based on signal availability data.

An interface connects two vehicles to transfer mechanical power, eliminating diesel emissions and complex cable infrastructure in underground mines.

Ethylene oxide capped glycol ether lowers bitumen viscosity to boost recovery rates while cutting steam energy consumption and environmental impact.

A mining machine control system calculates a correction acceleration command value to maintain target traveling speed.

A dragline excavates overburden and valuable material directly from the pit, removing haulage ramps.