Implementacija terenskih istraživanja u svrhu određivanja 2D modela klizišta

master's thesis

• Title (english): The implementation of field studies for the purpose of determining a 2D landslide model
• Author: Anja Bek
• Mentor: Stjepan Strelec (mentor)
• Mentor: Jasmin Jug (komentor)
• Committee member: Sanja Kovač (predsjednik povjerenstva)
• Committee member: Stjepan Strelec (član povjerenstva)
• Committee member: Jasmin Jug (član povjerenstva)
• Committee member: Boris Kavur (član povjerenstva)
• Granter: University of Zagreb; Faculty of Geotechnical Engineering; Varaždin
• Defense date and country: 2022-07-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences; Environmental Engineering

Abstract

Klizište se definira kao dio kosine na kojoj je zbog poremećaja stabilnosti došlo do
klizanja i premještanja mase tla ili stijene iz nestabilnog položaja u stabilan. Glavnim
uzrokom klizanja smatra se voda (saturiranost pora u tlu vodom). Klizišta predstavljaju
vrlo ozbiljan problem današnjice pa su stoga adekvatna terenska istraživanja od velike
važnosti za određivanje uzroka klizanja i sanacijskog rješenja. U ovom radu opisani su,
prezentirani i interpretirani rezultati terenskih istraživanja klizišta na dvije lokacije, i to
na području Samarice i Petrovskog. Od geofizičkih metoda izvedena je geoelektrična
tomografija, višekanalna analiza površinskih valova i seizmička refrakcija. Geotehnički
istražni radovi obuhvaćali su statičko sondiranje konusnim penetrometrom i
dilatometrom te dinamičko sondiranje teškom i lakom udarnom sondom. Analiza je
pokazala izvrsno nadopunjavanje i preklapanje rezultata geofizičkih i geotehničkih
metoda. Iako istražno bušenje predstavlja najizravniju metodu istraživanja, vrlo je skupo
i dugotrajno, te se dobivaju samo točkasti podaci. Rezultati istražnog bušenja na području
klizišta Samarica pokazali su dobru korelaciju s rezultatima ostalih geofizičkih i
geotehničkih metoda. Terenski istražni radovi bez primjene sondažnog bušenja na
području klizišta Petrovsko pokazali su se vrlo uspješnim u detektiranju dubine klizne
plohe. Nakon provedenih istraživanja predložena su sanacijska rješenja. Uspješnost
sanacijskog rješenja provjerila se analizom stabilnosti prema Bishop-u, pri čemu faktor
sigurnosti definira stabilnost kosine. Za slučaj stabilne kosine faktor sigurnosti mora biti
veći od 1.

Abstract (english)

Landslide is defined as the part of the slope on which, due to stability disturbances,
landslides and displacements of soil or rock have occurred from an unstable position to a
stable one. The main cause of sliding is considered to be water (saturation of pores in the
soil with water). Landslides are a very serious and current problem today. Therefore,
adequate field research is of great importance for determining the cause of landslides and
remediation solution. This paper describes, presents and interprets the results of field
research of landslides at two locations, in the area of Samarica and Petrovsko. Geoelectric
tomography, multichannel analysis of surface waves and seismic refraction were
performed from geophysical methods. Geotechnical investigations included static
sounding with a conical penetrometer and dilatometer and dynamic sounding with a
heavy and light impact probe. The analysis showed excellent complementarity and
overlap of the results of geophysical and geotechnical methods. Although exploratory
drilling is the most direct research method, it is very expensive and time consuming, and
only point data are obtained. The results of exploratory drilling in the area of the Samarica
landslide show a good correlation with the results of other geophysical and geotechnical
methods. Field exploration works without the use of sounding drilling in the area of the
landslide Petrovsko proved to be very successful in detecting the depth of the sliding
surface. After the research, remedial solutions were proposed. The success of the
remediation solution is checked by stability analysis according to Bishop, where the
safety factor defines the stability of the slope. In the case of a stable slope, the safety
factor must be greater than 1.

• Keywords: klizna ploha; geofizičke i geotehničke metode istraživanja; analiza stabilnosti kosine; sanacija klizišta.
• Keywords (english): sliding surface; geophysical and geotechnical research methods; slope stability analysis; landslide remediation.
• Language: croatian
• URN:NBN: urn:nbn:hr:130:281217
• Study programme: Title: Geoenvironmental Engineering; specializations in: Geoenvironmental Engineering, Environmental Management, Water Management; Course: Geoenvironmental Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/ inženjerka inženjerstva okoliša (magistar/magistra inženjer/ inženjerka inženjerstva okoliša)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-01-19 09:07:47