2018 - Hamit Çakıcı -
Özet:Application of geophysical methods besides geological studies in determining the resistance properties of rock mass including discontinuous provides much more accurate and reliable results. In this study, seismic refraction measurements were done in order to obtain the elastic parameters and quality of rocks at 20 different stations with determined profiles at the Deriner (Artvin) Dam site on both the right and left side. The density , the Poisson’s ratio the shear modulus , the bulk modulus and the modulus of elasticity were calculated by using the propagation velocities of elastic waves in the granodiorite which is dominant rock in the area. The free compressive strength of the rock mass at the dam site has been calculated using the shear wave velocity , and the rippability of the rock mass was classified by using the longitudinal wave velocities obtained in the profiles where seismic measurements were done. The rock quality designation features of granodiorite outcroped at the Deriner dam site was calculated by utilizing the crack number technique directly on the surface on granodiorite in seismic measurement profile at different stations. The maps of the velocity distributions of the study area obtained in these measurements are given. The relationship between the percentage distribution of the values of the granodiorite rock mass at the dam site and the values obtained from the seismic refraction method are investigated. In the study, firstly, the scatter diagrams of these properties were ploted and linear relationships were found between the specified properties.
Anahtar Kelime:Deriner dam, Elasticity modulus (E_SKY ), Shear modulus (G), Seismic velocity, RQD, t-test