Geotehnički i okolišni aspekti nalazišta materijala za izgradnju transverzalnog nasipa Odra - Suša

master's thesis

• Title (english): Geotehnical and environmental aspects of the borrow site for the construction of the Odra - Suša transversal embankment
• Author: Jakob Lipovšćak
• Mentor: Mario Bačić (mentor)
• Committee member: Meho-Saša Kovačević (predsjednik povjerenstva)
• Committee member: Lovorka Librić (član povjerenstva)
• Committee member: Mario Bačić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; Zagreb
• Defense date and country: 2024-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Geotehnički i okolišni aspekti nalazišta materijala važan su dio cjelokupnog projekta izgradnje transverzalnog nasipa Odra – Suša. Nužno je osigurati dugoročnu stabilnost nalazišta nakon završetka iskopa, održati funkcionalnost lokalnog ekosustava i što je više moguće uklopiti zahvat u okoliš te smanjiti čovjekov utjecaj. U uvodnom dijelu diplomskog rada opisani su faktori koji su utjecali na odabir lokacije predmetnog nalazišta. Pojašnjeni su svi parametri materijala koji su potrebni za određivanje pogodnosti materijala za ugradnju u nasip te opisana terenska ispitivanja, laboratorijski pokusi i njihova analiza. Ukratko su opisani kriteriji i relevantni tehnički uvjeti izvedbe prema kojima se određuje pogodnost materijala za ugradnju. Ekološki aspekti utjecaja zahvata na okoliš opisani su kroz utjecaje na pojedine elemente okoliša kao što su vode, tlo, kakvoća zraka, nastanak otpada itd. Za svaki od navedenih aspekata provedene su detaljne procjene i analize kako bi se utvrdili potencijalni negativni utjecaji te definirale mjere za njihovo ublažavanje ili eliminaciju. Nakon završetka radova, predloženo je uređenje nalazišta koje uključuje vraćanje površinskog sloja humusa, sadnju vegetacije i druge radnje usmjerene na smanjenje ekološkog otiska zahvata. Provedeni su numeričke analize u programu GeoStudio kako bi se utvrdila stabilnost nalazišta u različitim projektnim situacijama te potencijalno odredile dodatne mjere osiguranja i povećanja stabilnosti ukoliko bi to bilo potrebno. Zaključeno je da nalazište tvore visokoplastične i niskoplastične gline, od čega će se visokoplastične gline koristiti za jezgru nasipa, a niskoplastične za tijelo nasipa. Stabilnost nalazišta osigurana je iskopom pod nagibom 1:3 bez potrebe za dodatnim geotehničkim zahvatima.

Abstract (english)

Geotechnical and environmental aspects of the borrow sites are an important part of the project for the construction of the transversal embankment Odra – Suša. It is necessary to ensure the long-term stability of the site after excavation, maintain the functionality of the local ecosystem, and integrate the project into the environment as much as possible to minimize human impact. The introductory section of the theses describes the factors that influenced the selection of the subject site location. All material parameters needed to determine the suitability of materials for embankment construction are explained, along with descriptions of field investigations, laboratory tests, and their analysis. The criteria and relevant technical execution conditions used to determine the material suitability for embankment construction are briefly described. The aspects of the project's impact on the environment are described through effects on individual environmental elements such as water, soil, air quality, waste generation, etc. Detailed assessments and analyses have been conducted for each of these aspects to identify potential negative impacts and define measures for their mitigation or elimination. After the work is completed, the proposed site rehabilitation includes restoring the topsoil layer, planting vegetation, and other activities aimed at reducing the ecological footprint of the project. Numerical analyses were performed using the GeoStudio computer program to assess the stability of the site in different projected scenarios and to potentially determine additional security and stability enhancement measures if necessary. It was concluded that the site consists of high-plasticity and low-plasticity clays, with the highly plastic clays being used for the core of the embankment and the low-plasticity clays for the body of the embankment. The stability of the site is ensured by excavation at a slope of 1:3 without the need for additional geotechnical measures.

• Keywords: geotehnički aspekti; okolišni aspekti; nalazišta materijala; terenska ispitivanja; laboratorijska ispitivanja; nasip Odra – Suša
• Keywords (english): geotechnical aspects; environmental aspects; material sites; field testing; laboratory testing; Odra – Suša embankment
• Language: croatian
• URN:NBN: urn:nbn:hr:237:647035
• 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: Open access
• Created on: 2024-10-07 10:34:00