Accurately determining rock elastic modulus (EM) and uniaxial compressive strength (UCS)
using laboratory methods requires considerable time and cost. Hence, the development of
models for estimating the mechanical properties of rock is a very attractive alternative. The
current research was conducted to predict the UCS and EM of sandstone rocks using
quartz%, feldspar%, fragments%, compressional wave velocity (PW), the Schmidt hardness
number (SN), porosity, density, and water absorption via simple regression, multivariate …