Review article

Geotechnical investigations of the fortress “Minčeta”, Dubrovnik, Croatia

Kristijan Grabar ; SPP ltd, Varaždin, Croatia
Željko Miklin ; Croatian Geological Survey, Zagreb, Croatia
Stjepan Strelec ; Faculty of Geotechnical Engineering, University of Zagreb, Zagreb, Croatia

Abstract

Various damages of the fortress "Minčeta" during centuries had several causes. These are: partial foundation on the fault, additional construction works cutting the street "Iza grada" and seismic activity of the area. The resulting damage had to be located and the remediation measures were proposed to preserve the walls. Several methods of investigations were used. Geological mapping of the area was the base. Next was GPR profiling, electric and seismic investigation with multichannel analyses of surface waves and the special approach of downhole seismic measurements on the slope of the cut wall. Used methods defined the week rock mass zones that were geotechnically categorized. Grouting of week zones, as the protection from further degradation of walls, was proposed.

Keywords

engineering geological mapping; geophysical surveys; seismic surveys

Hrčak ID:

172502

URI

https://hrcak.srce.hr/172502

Publication date:

13.12.2016.

Article data in other languages: croatian

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