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Title:A stability assessment of coastal cliffs using digital imagery
Authors:ID Ružić, Igor (Author)
ID Benac, Čedomir (Author)
ID Marović, Ivan (Author)
ID Ilić, Suzana (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder)
Files:.pdf Acta_geotechnica_Slovenica_2015_Ruzic_et_al._A_stability_assessment_of_coastal_cliffs_using_digital_imagery.pdf (865,75 KB)
MD5: 31906CF85341224CB9635F68C514D7BC
PID: 20.500.12556/dkum/dd9813af-6544-43e1-8e5c-35e8b6c39661
 
URL http://fgserver3.fg.um.si/journal-ags/2015-2/article-2.asp
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:The investigated area around the Stara Baška settlement (the island of Krk, NE channel part of the Adriatic Sea) is in a delicate geodynamic balance. Marine erosion is quite prominent and the recorded cliff retreat between 1966 and 2004 was from 4 to 5 metres. The cliff slopes are formed in talus breccias. Strong waves and formations of wave-cut notches are the main causes of the cliff’s instability. The secondary causes are the weathering and erosion of the soil and rocks on the cliff. The slump of the cliff slope can occur in a rock mass with higher strength parameters, where the notches are cut a few metres inward into the toe of the cliff slope. A combined method for the stability analysis of the coastal cliffs was tested; this incorporates the cantilever-beam model and the structure-from-motion (SfM) photogrammetry. This method can provide highly detailed 3D geometrical data of the cliff, which can then be used in the calculations of the stability model. This is particularly important in a stability analysis of lithologically heterogeneous rocks such as breccias with varied geometry, which cannot be easily replaced by a rectangular surface. The simple and useful SfM method overcomes the limitations of traditional surveys in estimating the cliff overhang surface and the notch length.
Keywords:marine erosion, cliff stability, SfM photogrammetry, Krk island, Adriatic sea
Publication status:Published
Publication version:Version of Record
Year of publishing:2015
Number of pages:str. 25-35
Numbering:Letn. 12, št. 2
PID:20.500.12556/DKUM-70850 New window
ISSN:1854-0171
UDC:551.35.054.2
ISSN on article:1854-0171
COBISS.SI-ID:284294400 New window
NUK URN:URN:SI:UM:DK:0WTPSUXN
Copyright:Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru
Publication date in DKUM:15.06.2018
Views:1822
Downloads:243
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
RUŽIĆ, Igor, BENAC, Čedomir, MAROVIĆ, Ivan and ILIĆ, Suzana, 2015, A stability assessment of coastal cliffs using digital imagery. Acta geotechnica Slovenica [online]. 2015. Vol. 12, no. 2, p. 25–35. [Accessed 9 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=70850
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Record is a part of a journal

Title:Acta geotechnica Slovenica
Shortened title:Acta geotech. Slov.
Publisher:Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru
ISSN:1854-0171
COBISS.SI-ID:215987712 New window

Secondary language

Language:Slovenian
Title:Ocena stabilnosti obalnih pečin z uporabo digitalnih posnetkov
Abstract:Preiskovano območje okoli naselja Stara Baška (otok Krk, SV del kanala Jadranskega morja) je v občutljivem geodinamičnih ravnovesju. Morska erozija je zelo vidna in med 1966 in 2004 je evidentiran umik pečin med 4 in 5 metrov. Pobočja pečin oblikujejo strme breče. Močni valovi in formacije zarez vsled rezanja valov predstavlja glavni vzrok nestabilnosti. Sekundarni vzroki so preperevanja in erozije zemljine in hribine na pečini. Udor pečine pobočja se lahko pojavi v skalnih gmotah višjih parametrov trdnosti, kjer so zareze pomaknjene nekaj metrov v vznožje pečine pobočja. Preizkušena je bila kombinirana metoda za analizo stabilnosti obalnih pečin, ki vključuje model konzolnega nosilca in SfM fotogrametrijo. S to metodo lahko dobimo zelo detajlirane 3D geometrijske podatke pečine, ki se lahko kasneje uporabijo v izračunih stabilnostnega modela. To je še posebej pomembno pri stabilnostnih analizah litološko heterogenih kamninah, kot so breče s spremenljivo geometrijo, ki jih je težko nadomestiti s pravokotnimi površinami. Z enostavno in uporabno SfM metodo presežemo meje tradicionalnega merjenja pri ocenjevanju previsa pečine in dolžine zareze.
Keywords:morska erozija, stabilnost klifov, analiza stabilnosti, fotogrametrija, SfM fotogrametrija, otok Krk, Jadransko morje


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  1. Acta geotechnica Slovenica

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