Conic mass caving structure and method
Creation of flow barriers and ground isolation by block displace
Horizontal free face blasting for minimizing channeling and moun
In situ oil shale retort with differing upper and lower void fra
Method for mining of rock or ore according to the block caving p
Mining method
Mining method and apparatus
Mining system
Mining ultra thin coal seams
Multi-level hydraulic mining system
Push-pull mining system
R.B. Jun's method of openwork mining utilizing pit wall...
Support system for a unitized pair of auger conveyors
Tunnel layout for longwall mining using shields