Slope mass rating
Classification scheme of rock strength / From Wikipedia, the free encyclopedia
Slope mass rating (SMR) is a rock mass classification scheme developed by Manuel Romana [1][2][3] to describe the strength of an individual rock outcrop or slope. The system is founded upon the more widely used RMR scheme,[4] which is modified with quantitative guidelines to the rate the influence of adverse joint orientations (e.g. joints dipping steeply out of the slope).
Slope mass rating has been widely used worldwide. It has been included in the technical regulations of some countries as a classification system by itself or as a quality index for rocky slopes (e.g., India, Serbia, Italy).[5][6] It has also been used in more than 50 countries across five continents, especially in Asia (e.g., China and India), where its use is very common.[5][6]