Modeling Roughness of Rock Discontinuity Surfaces: A Signal Analysis Approach.

The article reports on modeling roughness of rock discontinuity surfaces. It discusses studies designed to quantify the profile matching process which show that the joint roughness coefficient (JRC) values of the original ten roughness profiles correlate reasonably well with a variety of mathematical expressions of roughness. The aim is to pave the way for development of a physically based roughness quantification method that is consistent in expressing morphology and assigning ranking.