Correlation study some dynamic properties with density, point load Index and Uniaxial compressive strength of some units of Mukdadya (lowerBakhtiari) Formation

Abstract

Geotechnical study conducted upon 10 rock samples have been taken from outcroup of Mukdadiya Formation (Lower Bakhtiari) which are located in Kirkuk anticline. Seismic wave velocities (shear and compressional), the dynamic modulus of rigidity, young, bulk and poisson's ratio, density, point load index test and uniaxial compressive strength test were measured of the rock samples in the laboratory. The dynamic properties values were correlated with geotechnical properties inculding uniaxial compressive strength, point load index and dry density. The rock samples have low to medium seismic velocites and very weak to weak mechanical strength. The mathematical relations showed a good correlation coefficient between the dynamic and geotechnical properties of the rock samples, that confident relations could use to estimate the geotechnical properies in the field by measuring sciesmic wave velocities in any future engineering projects.