Method apparatus and cartridge for non-explosive rock fragmentat

Method for above-ground leaching of metal bearing ores at below-

Method for attenuating seismic shock from detonating explosive i

Method for automatically adjusting the cutting drum position of

Method for blasting tunnels using an air bladder

Method for blocking gas flow in a coal seam

Method for boring and placing bolts for imbedding adhesively...

Method for breaking concrete structures

Method for breaking rock by directing high velocity jet into pre

Method for bulking full a retort

Method for closing a drift between adjacent in situ oil shale re

Method for closing off a mine gallery especially for use to prev

Method for completing a well in a coal formation

Method for control of geometry of fragmented mass in an situ oil

Method for controlled fragmentation of hard rock and concrete by

Method for controlling stress and increasing the strength of sup

Method for controlling the thickness of a layer of material in a

Method for controlling void fraction distribution in an in situ

Method for controlling void in an in situ oil shale retort

Method for cutting minerals and cutting machine