Primjena metoda daljinskih istraživanja na klizištu Gajevo, Kravarsko

master's thesis

• Title (english): Aplication of remote sensing methods on the Gajevo landslide (Kravarsko)
• Author: Luka Miklin
• Mentor: Borna Lužar-Oberiter (mentor)
• Committee member: Borna Lužar-Oberiter (predsjednik povjerenstva)
• Committee member: Katarina Gobo (član povjerenstva)
• Committee member: Marijan Kovačić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2021-01-21, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology; Geology and Paleontology

Abstract

Područje Vukomeričkih gorica, odnosno klizište Gajevo u Kravarskom odabrano je za istraživanje zbog dostupnosti potrebnih podataka, blizine terena Zagrebu, kao i zbog nastanjenosti tog područja i opasnosti od daljnjih klizanja.
U ovom diplomskom radu korišteni su podaci snimanja LiDAR-om izvršeni u sklopu projekta „SafEarth“ koji su omogućili analizu većih površina terena.
Nakon kabinetske obrade podataka, izvršeno je terensko kartiranje i pregled terena u nekoliko navrata. Ispunjen je formular klizišta i obrazac za opis tla i napravljen je terenski dnevnik s točkama promatranja, izmjeren je zijev pukotina na objektima. Kartiranjem klizišta uočeni su proslojci s više pijeska, analizirani su i načinjena je inženjerskogeološka karta i prognozni profil. Teren je snimljen dronom i obrađen u GIS-u. Usporedbom ortofotografija klizišta, svjedočanstvima stanovništva i pregledom dokumentacije oborina zaključeno je da se aktivacija klizišta dogodila 2014. godine. Uzrok aktivacije klizišta je bilo povećanje oborina, prirodne karakteristike terena, ali i antropogeni faktor koji su zajedno nepovoljno utjecali na stabilnost padine.
Novim saznanjima iskristaliziralo se mišljenje da postojeće klizište nije isplativo sanirati u cijelosti. Teren je potrebno najjednostavnijim mjerama sanacije umiriti. Preporučuje se izvesti kontrolirani odvod oborinske vode iz čela i kontrolirano ga odvesti izvan tijela klizišta u prirodni recipijent, te propisati prikladne mjere za stanovništvo.

Abstract (english)

The Gajevo landslide in the vicinity of Kravarsko (Vukomeričke gorice) was chosen for investigation due to the availability of necessary data, its proximity to Zagreb and the risk of further landslides for the population of the area.
Data were acquired through LiDAR scanning in the frame of the „SafEarth“ project, which enabled the analysis of larger areas of the terrain.
Following data processing, field mapping and field inspections were carried out on several occasions. The landslide form and soil description form were filled out, field notes were made at observation points. Crack dimensions on the buildings were measured. Landslide mapping revealed interlayers with higher proportion of sand. An engineering-geological map and an engineering-geological cross-section were made. The terrain was surveyed by drone and the dana processed in GIS. By comparing orthophotos of the landslide, resident testimonies and precipitation data, it was concluded that landslide was activated in 2014. The landslide was triggered due to increased precipitation, natural features of the terrain, but also an anthropogenic factor, all of which together affected slope stability.
New findings have led to the opinion that the existing landslide is not profitable for a complete remediation. The terrain must be "calmed" by simple remediation measures. It is recommended
to perform a controlled drainage of rainwater from the top of the landslide and to channel it out of the landslide body into a natural collection tank. Suitable activities and safety measures for the population should also be prescribed.

• Keywords: Klizište; daljinska istraživanja; Kravarsko; inženjerska geologija; inženjerskogeološka karta; inženjersko geološki profil; sanacija klizišta
• Keywords (english): landslide; remote sensing; Kravarsko; engineering geology; engineering-geological map; engineering-geological cross-section; landslide remediation
• Language: croatian
• URN:NBN: urn:nbn:hr:217:501789
• Study programme: Title: Graduate university study of Geology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra geologije (magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-04-20 12:27:43