Naslov
Landslide marks on the road Cerovlje – Buzet in Istria, Croatia

Autori
Zidarić, Matija ; Dugonjić Jovančević, Sanja ; Benac, Čedomir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 9th International Conference of Students froma Geotechnical Faculties / - Carlton, 2015, 57-62

Skup
GEOREKS 2015

Mjesto i datum
Sofija, Bugarska, 10.07.2015. - 13.07.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
flysch; landslide; marks of sliding; Istrian Peninsula; mapping

Sažetak
The paper presents the summary of the existing and past instabilities on the road Cerovlje- Buzet, as well as reflect on the landslide hazard in the area. The area is mostly built in Paleogene flysch sediments, with the prevailing grey colour, due to which it is called Grey Istria. Small rotational and translational landslides prevail in flysch deposits in central Istria, due to sliding of the cover on the contact with the flysch bedrock. Present instabilities and road damages caused by landslides were established by terrain inspection. Research area was determined by the existing road section Cerovlje- Buzet, 12 700 m in length. The road spreads from the central (Cerovlje), to the northern part of the Istrian Peninsula, beneath the Učka Mountain (Buzet). Signs of active and inactive landslides in the described location were analysed: scars and cracks on the road, depressions on the slopes along the road, presence and inclination of the fast growing vegetation inside the landslide body, visible landslide and sliding surface boundaries, hilly slopes characteristic for the flysch deposits etc. Using GPS device, locations with present marks of sliding, together with the locations where remedial measures were already done in the past (most often reinforced concrete retaining walls or gabions) were recorded. Research results were presented on the ortophoto map. Larger instable zones with landslide hazard potential, that could endanger usual traffic and human lives, were also presented. It can be concluded that the damages on the road are numerous and that the instabilities overtake different areal extent, but that they are mostly relatively small landslides. Based on the research performed in this paper, considerable landslide hazard in the area can be expected. Using adequate and available methodology, the real landslide hazard degree, along the Cerovlje- Buzet road, could be determined.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Građevinarstvo

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