Rock classification and empirical determination of the in-situ modulus of deformation of basalt

Abstract

The objective of this thesis is to demonstrate that the rock classification systems are practical and useful tools for the determination of the in-situ mechanical characteristics of the high-strength rock formations, and to present the modern rock classification , systems in a compact form. Within the scope of this thesis, basalt samples from the Toprakkale-iskenderun Motorway Project are classified using the three most frequently implemented rock classification systems, the RQD Index, the RMRGeomechanics, and the Q Systems. Upon the classification, the in-situ modulus of deformation is determined according to the empirical methods based on these rock classification systems. The obtained results are compared and correlated with the laboratory test and geophysical survey results.