In this chapter possibilities of the improvement of drilling tool efficiency on the basis of the analysis of mechanisms of rock destruction and some methods of the information theory are considered. Physical mechanisms of destruction of hard and plastic rocks under different conditions of mechanical loading are reviewed. Some physical effects which allow to improve the efficiency of rock drilli...

Purpose. To develop a new theory for the rocks destruction by blasting using description of formation processes zones with various mass state around charging cavity. Methods. The rock has been developed based on use well-known elasticity laws and main provisions quasi-static-wave hypothesis about mechanism solid medium under action. models crumpling, intensive fragmentation fracturing that aris...

Thermal technologies for the treatment of waste are once again attracting interest, particularly in Europe and North Amerca, as landfill space becomes scarcer and landfill regulations become more stringent. Plasma technologies can be used to destroy waste at high temperatures, using electricity to convert waste into a fuel gas and an inert rock. The Plasma Arc Waste Destruction System’s (PAWDS)...