Applicability of the RNK-method for geotechnical 3D-modelling in soft rocks

The RNK-method or the Reference Level of Correlation method represents a procedure for spatial engineering-geological and/or geotechnical modeling, that was tested on many landslides in Croatia. The method gives the opportunity of differentiation of minimum shear strength zones, zones of different hydraulic conductivities, and zones of various soil densities. The application and verification of the RNK-method in soft rock formations found on the landslide area in Gorica Svetojanska (Croatia) is presented. The presentations providing the full set of relevant information needed to develop representative geotechnical profiles are also shown. The established geotechnical sliding model is verified by measurements of lateral movements in the landslide area and by results of corresponding stability analyses