The effect of formation anisotropy on the hole deviation force acting on a single bit tooth is analyzed for a plastically deforming rock. A yield condition which allows a nonlinear dependence of strength on confining pressure is used in a numerical analysis of the plane strain indentation of a porous rock by a single bit tooth. The hole deviation force was approximately 50 percent of the vertical indentation force for the example calculation.
Issue Section:
Research Papers
This content is only available via PDF.
Copyright © 1977
by ASME
You do not currently have access to this content.