Mining Devices TRIZ Cases
- Non-Blasting Tunnel Boring with Drilling and Rock Splitting
A rotating working disc combines drilling, rock splitting, dust suppression, and debris handling to cut tunnel vibration and noise.
- Tunnel Anchor Cable Shear Locking for Coal-Rock Interface Stability
Balances shear forces at coal-rock interfaces with tolerance cavities, steel strips, and monitoring to prevent tunnel anchor cable failure.
- Self-Sealing Water Bag Pulse Fracturing for Hard Coal Roofs
High-voltage pulse discharge through self-sealing water bags fractures hard coal roofs with less water, easier borehole sealing, and lower dust and gas risk.
- Wear Surface Thickness Indicators for Visual Wear Monitoring
Color-coded thickness indicators expose at set wear levels, improving wear assessment accuracy and maintenance timing on machine components.
- Polystyrene Compression Element for Uniform Shotcrete Load Transfer
Lightweight expanded polystyrene compression elements absorb rock deformation, simplify installation, and spread loads evenly to protect shotcrete.
- Tunnel Segment Dislocation Monitoring With Graphene Sensor Plates
Graphene resistive sensor plates turn tunnel segment displacement into real-time signals, enabling precise dislocation tracking and earlier intervention.
- Mine Seismic Energy Attenuation for Rock Burst Hazard Prediction
Using seismic wave energy attenuation, this case combines static and dynamic load indexes to predict rock burst hazard areas more accurately.