Analiza pokretača klizanja na području Općine Bednja

master's thesis

• Title: Analiza pokretača klizanja na području Općine Bednja : diplomski rad
• Title (english): Analysis of landslide triggering factors at the area of Bednja municipality : master’s thesis
• Author: Nina Pivčević
• Mentor: Snježana Mihalić Arbanas (mentor)
• Committee member: Snježana Mihalić Arbanas
• Committee member: Andrea Bačani
• Committee member: Davor Pavelić
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Geology and Geological Engineering); Zagreb
• Defense date and country: 2015-01-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Geological Engineering

Abstract

U razdoblju od 2006. do 2013. godine na području općine Bednja aktivirana su brojna klizišta kao posljedica oborina. U okviru ovog diplomskog rada prikupljeni su podaci o 87 klizišta iz različitih izvora: lokalne samouprave općine Bednja, Područnog ureda za zaštitu i spašavanje Varaždin, tehničkih izvješća i geotehničkih elaborata, kao i informacija iz medija. Također je provedeno i rekognoscirajuće kartiranje klizišta na terenu u svrhu provjere podataka i prikupljanja opisnih podataka o točnoj lokaciji klizišta, površini klizišta i elementima pod rizikom. Ovi podaci poslužili su za analizu pokretača klizanja, koja se sastojala od identifikacije oborinskih događaja uslijed kojih su klizišta pokrenuta, kao i definiranja intenziteta i trajanja identificiranih oborinskih događaja. Pri analizi oborina korišteni su podaci o oborinama s tri meteorološke postaje, Bednja, Klenovnik i Donji Macelj. Na osnovi prikupljenih podataka o točnim datumima aktivacije klizišta, utvrđeno je da su ekstremni vremenski uvjeti nastupili 2008., 2009., 2012. i 2013. godine. Na osnovi analize podataka o oborinama utvrđeno je šest oborinskih događaja s vrijednostima kumulativne oborine u rasponu od 115 do 180 mm i vrijednostima trajanja oborina u rasponu od 23 do 28 dana Usporedbom ovih podataka s krivuljama intenzitet-trajanje (tzv. ID krivulje) iz svjetske literature, proizlazi da su u analiziranom razdoblju na području općine Bednja nastala klizišta veličine od 200 do 7.200 m2, uslijed oborinskih događaja koji su premašili globalne granične vrijednosti prema Guzzetti i dr. (2008), a tri događaja su također premašili i regionalne granične vrijednosti prema Guzzetti i dr. (2007).

Abstract (english)

Abstract: In the period from 2006 to 2013 in the Bednja municipality numerous landslides were activated due to rainfall. Within this thesis data were collected for 87 landslides from various sources: archive of local government, Regional Office for Protection and Rescue of Varaždin, technical and geotechnical reports, as well as informations from the media. Field reconnaisance mapping was also performed in order to check data and to collect descriptive data of the exact landslide location, landslide size and elements at risk. These data were used to analyze landslide triggers by the identification of rainfall events which caused landslides, as well as defining the intensity and duration of the identified rainfall events. Measurements obtained by three meteorological stations, Bednja, Klenovnik and Donji Macelj, were used to analyze precipitation. Based on data collected on the exact dates of landslides activation, it was found that the extreme weather conditions occurred in 2008, 2009, 2012 and 2013. Based on the analysis of precipitation data six precipitation events were found with the values of the intensity of cumulative precipitation ranging from 115 to 180 mm and the duration of precipitation values ranging from 23 to 28 days. By comparing these data with intensity-duration curves (ID thresholds) from scientific literature, it is shown that in the analyzed period in the municipality of Bednja were caused landslides in size of 200-7,200 m2, due to precipitation events that exceed the global limit values according to Guzzetti et al. (2008), and three events were also exceeded the regional limit values according to Guzzetti et al. (2007).

• Keywords: općina Bednja; klizišta; pokretači klizanja; oborinski događaji; granične vrijednosti intenzitet-trajanje
• Keywords (english): Bednja municipality; landslides; triggers of landslides; rainfall events; ID thresholds
• Language: croatian
• URN:NBN: urn:nbn:hr:169:739898
• Study programme: Title: Geological Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka geološkog inženjerstva (magistar/magistra inženjer/inženjerka geološkog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2015-12-11 14:06:40