Sharif University of Technology Scientia Iranica 1026-3098 28 5 2021 10 01 Numerical analysis and back calculation for embankment dam based on monitoring results (Case study: Iran-Lurestan Rudbar) 2519 2533 22254 10.24200/sci.2021.56159.4579 EN V. Ghiasi Department of Civil Engineering, University of Malayer, Hamadan, P.O. Box 65719-95863, Iran 0000-0002-4192-8097 F. Heydari Department of Civil Engineering, University of Malayer, Hamadan, P.O. Box 65719-95863, Iran H. Behzadinezhad Department of Mining Engineering, Isfahan University of Technology, Isfahan, Iran Journal Article 2020 06 11 In this paper, comparing the results obtained from monitoring and numerical modeling carried out to significantly help to analyze the stability of embankment dams. comparison of these analyses with the fact they are the precise instrument results, in addition to validating the numerical analysis, is the basis for performing a back analysis to obtain accurate Geotechnical parameters. Accordingly, the final parameters extracted by the back calculation method of materials in the body of earth dams to predict dam performance are the main purpose of this study. In this study, the Rudbar Lurestan dam was selected as a case study and the results of its instrumentation were processed and analyzed. Then, the monitoring results of one of the sections (C5-C5), were selected for analysis and comparison with the numerical model. At first, the model was modeled in a static state at the time of construction. FLAC2D V7 software was used for modeling and simulation was done using Mohr-Coulomb behavioral model and the initial parameters of the material. The observations show that there is a good agreement between the monitoring results of the modeling and also final parameters obtained from the back calculation show a growing trend in most parameters. https://scientiairanica.sharif.edu/article_22254_8709c68806a55ca2b12db80514b8e3c8.pdf