An implementation of rock engineering system for ranking the instability potential of natural slopes in Greek territory. An application in Karditsa County |
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| Authors: | D Rozos L Pyrgiotis S Skias P Tsagaratos |
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| Institution: | (1) School of Mining and Metallurgical Engineering, National Technical University of Athens, 9 Heroon Polytechniou str, 15780 Athens, Greece;(2) Institute of Geology and Mineral exploration of Greece, 70 Messogion str, 11527 Athens, Greece;(3) Democritus University of Thrace, 12 B. Sofias str., 67100 Xanthi, Greece |
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| Abstract: | This paper presents an application of rock engineering system (RES) in an attempt to reveal and assess the inherent instability
potential of 388 sites where equivalent landslides have been manifested and recorded in the region of Karditsa County, Greece.
The main objective has been defining the principal causative and triggering factors responsible for the manifestation of landslide
phenomena, quantify their interactions, obtain their weighted coefficients, and calculate the instability index, which refers
to the inherent potential instability of each natural slope of the examined region. From the statistical interpretation of
the data reported in a well-documented database and concerning the examined failure sites, a clear correlation between the
instability index and the area affected by a single landslide event has been revealed. Almost the entire failure sites, 98%
of the examined slope sites, exhibit an instability index value over 55, a value which is thought to be a critical threshold
for landslide manifestation concerning natural slopes in Karditsa County. It is argued that the presented RES methodology,
engaging the selected set of parameters, could be considered as an effective expert's tool for ranking, in an objectively
optimal and simple way, the instability potential of natural slopes in Karditsa County, and thus providing a tool for sound
zoning landslide hazard. |
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| Keywords: | Rock engineering system Landslides Instability index Area affected Karditsa County Greece |
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