Geotehničke analize klizišta u Selištu Kostajničkom

master's thesis

• Title (english): Geotechnical analysis of the landslide at Seliste Kostajnicko
• Author: Vana Prašo
• Mentor: Mario Bačić (mentor)
• Committee member: Mario Bačić (predsjednik povjerenstva)
• Committee member: Danijela Jurić Kaćunić (član povjerenstva)
• Committee member: Meho-Saša Kovačević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Geotechnical Engineering); Zagreb
• Defense date and country: 2022-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Geotechnology

Abstract

Klizišta su jedna od češćih pojava nestabilnosti u Republici Hrvatskoj. Lokacija, na kojem se nalazi klizište promatrano u ovom radu, je prometna cesta u Selištu Kostajničkom i kao mjera stabilizacije odabrano je rješenje ugrađenom potpornom konstrukcijom. Riječ je o armiranobetonskoj pilotnoj stijeni s naglavnom gredom. Modelirane su naponsko – deformacijske analize i analize stabilnosti. Osim samog klizišta, na lokaciji otprije postoji potporni zid koji je počeo gubiti funkciju već godinama kao i sustavi odvodnje koji su neodržavani i začepljeni. Izvršen je iskop jednog dijela nasutog nekoherentnog materijala. Kasnije, ugrađen je potporni sklop s navedenim elementima stabilizacije. Kao dodatni slučaj razmatrano je i stanje u kojem dolazi do klizanja materije tla ispred pilota. Provedene su statičke i dinamičke analize s niskom i visokom razinom vode u dreniranim i nedreniranim uvjetima. Naponsko – deformacijskom analizom dobivene su rezne sile s kojima je dimenzioniran pilot i naglavna greda, a analizom stabilnosti su dokazani zadovoljavajući faktori sigurnosti.

Abstract (english)

Landslides are one of the most frequent phenomena of instability in Croatia. The location of the observed landslide in this research, is a traffic road in Seliste Kostajnicko, and as a stabilization system, a solution with an embedded support structure was chosen. It is a reinforced concrete pile wall with a head beam. Stress-strain analysis and stability analysis were carried out. In the addition to the landslide itself, the implemented retaining wall on the site has been slowly losing its function throughout the years as well as drainage systems which are unmaintained and clogged. It was necessary to partially excavate incoherent soil layer. Later, a support assembly with the aforementioned stabilization elements was installed. As a cautionary measure, the condition in which the soil material slides before of the pile, was considered. Static and dynamic analysis were performed with low and high-water levels in drained and undrained conditions. The stress-strain analysis obtained the internal forces with which the pile and the main beam were dimensioned, and the stability analysis proved satisfactory safety factors.

• Keywords: klizište; pilotna stijena; potporni zid; analiza stabilnosti; naponsko – deformacijska analiza
• Keywords (english): landslide; pile wall; retaining wall; stability analysis; stress – strain analysis
• Language: croatian
• URN:NBN: urn:nbn:hr:237:606467
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-02-01 09:55:13