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Toromanovic, JasminaORCID iD iconorcid.org/0000-0001-6562-1738
Publications (6 of 6) Show all publications
Toromanovic, J., Knutsson, S., Mattsson, H. & Laue, J. (2018). Utvärdering av dammars tillstånd. SwedCOLD Nyhetsbrev (2), pp. 14-15
Open this publication in new window or tab >>Utvärdering av dammars tillstånd
2018 (Swedish)In: SwedCOLD Nyhetsbrev, no 2, p. 14-15Article in journal, News item (Other (popular science, discussion, etc.)) Published
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-71380 (URN)
Available from: 2018-10-30 Created: 2018-10-30 Last updated: 2018-12-05Bibliographically approved
Toromanovic, J., Laue, J. & Knutsson, S. (2017). Assessment of Arching and Cracking Potential by Numerical Modelling: A Case Study of the Mornos Dam. In: : . Paper presented at 14th International Benchmark Workshop on Numerical Analysis of Dams, Stockholm, Sweden, September 6-8 2017.
Open this publication in new window or tab >>Assessment of Arching and Cracking Potential by Numerical Modelling: A Case Study of the Mornos Dam
2017 (English)Conference paper, Published paper (Refereed)
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-66674 (URN)
Conference
14th International Benchmark Workshop on Numerical Analysis of Dams, Stockholm, Sweden, September 6-8 2017
Available from: 2017-11-21 Created: 2017-11-21 Last updated: 2017-12-05Bibliographically approved
Toromanovic, J., Mattsson, H. & Laue, J. (2017). Effects of Measurement Error on the Genetic Algorithm in Soil Parameter Identification for an Earth- and Rockfill Dam. In: ICSMGE 2017: 19th International Conference on Soil Mechanics and Geotechnical Engineering. Paper presented at 19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017, Seoul, South Korea, 17-22 September 2017 (pp. 2443-2446). 19th ICSMGE Secretariat
Open this publication in new window or tab >>Effects of Measurement Error on the Genetic Algorithm in Soil Parameter Identification for an Earth- and Rockfill Dam
2017 (English)In: ICSMGE 2017: 19th International Conference on Soil Mechanics and Geotechnical Engineering, 19th ICSMGE Secretariat , 2017, p. 2443-2446Conference paper, Published paper (Refereed)
Abstract [en]

It is usually difficult to determine values for soil parameter values in earth- A nd rockfill dams by traditional methods. Field sampling is not easily performed, especially in the impervious parts, since the performance and safety of the dam structure may be affected in an unfavourable way. Therefore other methods, preferably non-destructive, are needed to investigate the mechanical behaviour. Inverse analysis has been utilised to identify soil parameter values for an earth- A nd rockfill dam. An error function and a genetic search algorithm were combined with a finite element software to perform the analysis. The model parameters in the chosen constitutive model were calibrated until the horizontal deformations corresponded to the horizontal inclinometer deformations. Errors or irregularities in field measurements can occur, for instance based on the accuracy of the equipment. In this study, the performance of the genetic algorithm was investigated, when applied to identify soil parameters for a dam. Added perturbations to simulated inclinometer data are randomly generated within a chosen interval of error. The results showed that the genetic algorithm found a minimum for the error function even though the field data was substantially perturbed. Errors up to 10% were shown to have minor impact

Place, publisher, year, edition, pages
19th ICSMGE Secretariat, 2017
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-64847 (URN)2-s2.0-85045198380 (Scopus ID)
Conference
19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017, Seoul, South Korea, 17-22 September 2017
Available from: 2017-07-10 Created: 2017-07-10 Last updated: 2019-01-18Bibliographically approved
Toromanovic, J., Mattsson, H. & Laue, J. (2017). Effects of random measurement error on the genetic algorithm in soil parameter identification for an earth- and rockfill dam. In: : . Paper presented at 6th International Young Geotechnical Engineers’ Conference (iYGEC6), Seoul, Republic of Korea, 16 – 17 September 2017.
Open this publication in new window or tab >>Effects of random measurement error on the genetic algorithm in soil parameter identification for an earth- and rockfill dam
2017 (English)Conference paper, Published paper (Other academic)
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-65844 (URN)
Conference
6th International Young Geotechnical Engineers’ Conference (iYGEC6), Seoul, Republic of Korea, 16 – 17 September 2017
Available from: 2017-09-27 Created: 2017-09-27 Last updated: 2017-11-24Bibliographically approved
Toromanovic, J., Mattsson, H., Knutsson, S. & Laue, J. (2017). Use of parameters identified by inverse analysis in an earth- and rockfill dam application. In: 85th Annual Meeting  of International Commission on Large Dams: . Paper presented at 85th Annual Meeting of International Commission on Large Dams, Prague, Czech Republic, July 3-7 2017.
Open this publication in new window or tab >>Use of parameters identified by inverse analysis in an earth- and rockfill dam application
2017 (English)In: 85th Annual Meeting  of International Commission on Large Dams, 2017Conference paper, Published paper (Refereed)
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-64841 (URN)
Conference
85th Annual Meeting of International Commission on Large Dams, Prague, Czech Republic, July 3-7 2017
Available from: 2017-07-10 Created: 2017-07-10 Last updated: 2017-11-24Bibliographically approved
Toromanovic, J., Mattsson, H., Knutsson, S. & Sipola, J. (2016). Effects on an earth and rockfill dam undergoing dam safety measures (ed.). Paper presented at Nordic Geotechnical Meeting : Challanges in Nordic Geotechnics 25/05/2016 - 27/05/2016. Paper presented at Nordic Geotechnical Meeting : Challanges in Nordic Geotechnics 25/05/2016 - 27/05/2016.
Open this publication in new window or tab >>Effects on an earth and rockfill dam undergoing dam safety measures
2016 (English)Conference paper, Oral presentation only (Refereed)
Abstract [en]

Over the lifetime of a dam several measures are usually taken in order to assure the stability and the performance of the dam. In this case a hydropower dam in Northern Sweden is in need of dam safety measures. The question arose, what consequences there might be when such measures are performed. In order to estimate these effects, simulations have been carried out in the finite element programme PLAXIS 2D. Thereby, the deformations and the stability of the dam for the planned work can be evaluated. The performed simulations are based upon previously conducted research at Luleå University of Technology, where soil parameters in the investigated dam were identified by a method of inverse analysis.Three sections have been analysed: A, B and C. In section A increasing pore water pressure has been observed at the downstream side of the dam. Thereby it has been concluded that a new drainage system is needed; new trenches of large size are to be excavated. In section B new toe berms are planned, due to the requirement that the dam should be able to divert leakage without erosion occurring at the dam toe. This contains soil material that might degrade when stresses are increased, with intensified deformations as a consequence. In section C a new berm is to be constructed, before this can be conducted an excavation is performed at the toe of the dam.The results have shown deformations of an acceptable magnitude and factors of safety that indicate conditions for the planned dam safety measures. Numerical values of deformations and factors of safety can be utilised as an attempt to establish alarm values for the stability of the dam. The finite element method is a useful tool for this kind of evaluation.

National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-27544 (URN)10a9fc0c-d076-4e3c-a37e-9308357da894 (Local ID)10a9fc0c-d076-4e3c-a37e-9308357da894 (Archive number)10a9fc0c-d076-4e3c-a37e-9308357da894 (OAI)
Conference
Nordic Geotechnical Meeting : Challanges in Nordic Geotechnics 25/05/2016 - 27/05/2016
Note
Godkänd; 2016; 20160607 (jastor)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-6562-1738

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