Research of the resistance of the rock mass when implementing a conical tool into it

Abstract

Abstract Among various types of resistance of the rock mass to the penetration of a solid body into it, those are determined, with the overcoming of which not rebound, but the depth of penetration (viscous-plastic resistance) is associated. It is shown how at a given initial speed of the tool movement, at the depth and time of penetration measured in experiments, for a given geometry of the tool, the desired resistance function consisting of a constant term and a function that depends on the speed of movement is restored. More acceptable is the geometry of the tool at which the resistance of the medium to penetration for a given depth is minimal.