The Hoek-Brown failure criterion

The Hoek-Brown failure criterion is a mathematical model used by geotechnical engineers to predict when rock will break or fail under stress. It considers the inherent strength of the rock and the amount of external pressure applied to it. The formula factors in the rock's condition, such as cracks or fractures, to estimate its failure point. This helps engineers design safe tunnels, slopes, and foundations by understanding how rocks will behave under different forces, ensuring structures are built with appropriate safety margins based on the rock's properties.