Poboljšanje tla ispod nasipa prijelazne rampe nadvožnjaka Vuk

master's thesis

• Title (english): Soil improvement under the embankment of the Vuk overpass transition ramp
• Author: Josip Ivanić
• Mentor: Lovorka Librić (mentor)
• Committee member: Danijela Jurić Kaćunić (predsjednik povjerenstva)
• Committee member: Meho-Saša Kovačević (član povjerenstva)
• Committee member: Lovorka Librić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; Zagreb
• Defense date and country: 2021-07-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Geotechnology

Abstract

Za potrebe odabira optimalnog rješenja poboljšanja tla ispod nasipa prijelazne rampe nadvožnjaka Vuk, u ovom diplomskom radu detaljno je analizirana metoda poboljšanja tla šljunčanim stupnjacima. Nadvožnjak Vuk gradi se u sklopu velikog projekta poboljšanja postojećeg te izgradnje drugog kolosijeka željezničke pruge M2021 za mješovit promet Državna granica – Botovo – Dugo Selo, na dionici Križevci – Koprivnica – Državna granica, poddionici Križevci – Lepavina. Za potrebe analize poboljšanja tla ispod prijelazne rampe nadvožnjaka Vuk analizirani su dostupni geotehnički istražni radovi te je dan pregled metoda izvođenja šljunčanih stupnjaka. U radu su prikazane kako različite krutosne karakteristike šljunčanih stupnjaka, promjer te razmak šljunčanih stupnjaka utječu na konačno slijeganje konstrukcije. Proračun šljunčanih stupnjaka proveden je pomoću programa StoneC, a na temelju Priebeove metode za proračun povećanja krutosti i čvrstoće šljunčanih stupova.

Abstract (english)

For the purpose of choosing the optimal solution for soil improvement under embankment of the Vuk overpass transition ramp, in this thesis the stone columns soil improvement method is analyzed in detail. The Vuk Overpass is being built as part of a big project of improving existing and building the second track od the M2021 railway for mixed traffic „State border- Botovo – Dugo Selo, on the section Krizevci – Koprivnica – State border, subsection Krizevci – Lepava. For the need od the analysis of soil improvement below the Vuk overpass transition ramp, the available geotechnical investigation works were analyzed and an overview of the method of construction of stone columns soil improvement was given. This thesis shows how different stiffness characteristics of gravel steps, diameter and spacing of gravel steps affect the final settlement of the structure. The calculation of gravel columns was performed using the StoneC program, which is based on Priebe`s method for calculating the increase in stiffness and strength of gravel columns.

• Keywords: šljunčani stupnjaci; poboljšanje tla; nasip; slijeganje
• Keywords (english): stone columns; soil improvement; embankment; settlement
• Language: croatian
• URN:NBN: urn:nbn:hr:237:750324
• 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: 2021-11-16 09:04:12