Title:	Evaluation of the Effect of Varying the Angle of Asphaltic Concrete Core on the Behavior of the Meijaran Rockfill Dam
Authors:	Khalaj, Omid Ahmadi, Alireza Ayati Nejad, Sobhan Abedin Mašek, Bohuslav Štádler, Ctibor Skála, Jiří
Citation:	KHALAJ, O. AHMADI, AA. NEJAD, SA. MAŠEK, B. ŠTÁDLER, C. SKÁLA, J. Evaluation of the Effect of Varying the Angle of Asphaltic Concrete Core on the Behavior of the Meijaran Rockfill Dam. Coatings, 2022, roč. 12, č. 6, s. 1-16. ISSN: 2079-6412
Issue Date:	2022
Publisher:	MDPI
Document type:	článek article
URI:	2-s2.0-85135410797 http://hdl.handle.net/11025/51055
ISSN:	2079-6412
Keywords in different language:	asphaltic concrete core;rockfill dam;static analysis;dynamic analysis;centrifuge test;FLAC 2D;Meijaran dam
Abstract in different language:	The use of asphaltic concrete cores for sealing embankments and rockfill dams is very important. The self-healing properties of bitumen, simple construction in cold and rainy conditions compared to clay cores, good flexibility and connection with embankment materials are the essential characteristics of asphaltic concrete. The main concern regarding the use of asphaltic concrete cores in Iran is mainly the performance of these dams under seismic loads. The evaluations of the performance of these types of dams in other countries show that asphaltic concrete cores perform satisfactorily in the static state, but in earthquake conditions, the situation may be different. In this paper, the static and seismic behavior of the Meijaran dam in Iran, Mazandaran, is evaluated for three core angles of 90◦, 60◦ and 45◦ . This evaluation was conducted at the end of the impounding stage and after applying seismic loads using FLAC 2D software and Mohr–Coulomb consitutive models. The results were matched with the ICOLD recommendation to use angled cores in dams with asphaltic cores and showed that the dam performs better with angled cores. Finally, for the Meijaran dam, the results from the dynamic analysis are compared with the results from the centrifuge test.
Rights:	© authors
Appears in Collections:	Články / Articles (RICE) Články / Articles (KEI) OBD

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