Azarshahr travertine compression strength prediction based on point-load index (Is) data using multilayer perceptron

Point-load test basics

The act of applying an axial load to a precise point or region on the rock’s surface is known as point-loading, forming the fundamental principle of the point-load test. This loading procedure endures until the rock experiences failure or the sample is compromised. By closely monitoring this progression, the compressive strength of the rock can be determined through empirical correlations. Among the concentrated loading techniques, diametral and axial point load strength is the most prevalent. These approaches are developed based on the analysis of rock conditions³¹,…