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master's thesis
Analiza utjecaja usisnih naprezanja na stabilnost djelomično zasićenog nasipa
diplomski rad
Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2013. urn:nbn:hr:169:365719
Bošković, Marina
University of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
Department of Mining and Geotechnical Engineering

Institutional repository: Faculty of Mining, Geology and Petroleum Engineering Repository, University of Zagreb

Cite this document

Bošković, M. (2013). Analiza utjecaja usisnih naprezanja na stabilnost djelomično zasićenog nasipa : diplomski rad (Master's thesis). Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:169:365719

Bošković, Marina. "Analiza utjecaja usisnih naprezanja na stabilnost djelomično zasićenog nasipa : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2013. https://urn.nsk.hr/urn:nbn:hr:169:365719

Bošković, Marina. "Analiza utjecaja usisnih naprezanja na stabilnost djelomično zasićenog nasipa : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2013. https://urn.nsk.hr/urn:nbn:hr:169:365719

Bošković, M. (2013). 'Analiza utjecaja usisnih naprezanja na stabilnost djelomično zasićenog nasipa : diplomski rad', Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, accessed 01 June 2024, https://urn.nsk.hr/urn:nbn:hr:169:365719

Bošković M. Analiza utjecaja usisnih naprezanja na stabilnost djelomično zasićenog nasipa : diplomski rad [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering; 2013 [cited 2024 June 01] Available at: https://urn.nsk.hr/urn:nbn:hr:169:365719

M. Bošković, "Analiza utjecaja usisnih naprezanja na stabilnost djelomično zasićenog nasipa : diplomski rad", Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, 2013. Available at: https://urn.nsk.hr/urn:nbn:hr:169:365719

Metadata
TitleAnaliza utjecaja usisnih naprezanja na stabilnost djelomično zasićenog nasipa : diplomski rad
Title (english)Numerical analysis of suction stress on the stability of partially saturated embankments : master’s thesis
AuthorMarina Bošković
MentorBiljana Kovačević Zelić (mentor)
Committee memberBiljana Kovačević Zelić
Committee memberPredrag Kvasnička
Committee memberPetar Hrženjak
GranterUniversity of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
(Department of Mining and Geotechnical Engineering)
Zagreb
Defense date and country2013-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mining, Petroleum and Geology Engineering
Mining
Abstract
Nesaturirana tla mogu uzrokovati različite geotehničke probleme koji se javljaju kod zemljanih brana ili nasipa zbog raspodjele pornog tlaka vode i zraka što može dovesti do njihove nestabilnosti. Numerički model nasipa od nesaturiranog tla obuhvaća analizu procjeđivanja i stabilnosti nasipa provedenu kroz pojedinačne faze s porastima razine vode na uzvodnoj strani do maksimalne visine od 7 m. Usporedbom rezultata analize dvaju modela, saturiranog i nesaturiranog, pokazalo se da djelovanje privlačnih sila, usisa, između molekula vode i čestica tla, koji uzrokuje ulazak vode u porni prostor i njeno zadržavanje, dolazi do povećanja posmične čvrstoće a samim time i povećanjem stabilnosti nasipa. Rezultati analize stabilnosti pokazuju veće faktore sigurnosti za model od nesaturiranog tla u odnosu na model od saturiranog tla. Osim toga prikazan je i utjecaj dreniranja nožice nasipa na stabilnost nasipa. Dren „navlači“ vodu uzrokujući smanjenje pornih pritisaka čime se onemogućava erozija nasipa te sprječava pojava hidrauličkog sloma tla a posljedično i gubitka stabilnosti pokosa.
Abstract (english)
Abstract: Unsaturated soil can cause a variety of geotechnical problems that occur in earth dams or embankments for the distribution of pore water pressure and air which can lead to instability of the embankment. The numerical model of unsaturated soil embankment includes an analysis of seepage and stability of embankments carried out through a single phase with the rise in water level on the upstream side to a maximum height of 7 m. Results of analysis, comparing the two models, saturated and unsaturated, show that the action of the forces of attraction, suction, between water molecules and soil particles, which causes the suction of water in the empty cavity and its retention, increase shear strength and thus increasing the stability of the embankment. Results of the analysis show greater factor of safety of unsaturated model unlike saturated models. Additionally, the impact of drainage dike base on the stability of embankments is shown. Dren "pulls" water and thus a decrease in pore pressure and reducing erosion of embankments which could lead to hydraulic fracturing and the development of the sliding surface.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:169:365719
Study programmeTitle: Mining
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka rudarstva (magistar/magistra inženjer/inženjerka rudarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2016-01-21 13:34:02