期刊名称：Iranica Journal of Energy and Environment (IJEE)
印刷版ISSN：2079-2115
电子版ISSN：2079-2123
出版年度：2014
卷号：3
期号：3160
页码：240-246
语种：English
出版社：Noshirvani University of TEchnology
摘要：Seepage in embankment dams is one of the important factors in stability and dam’s maintenance. Core in earth dam is essential for waterproofing and controlling of seepage. Therefore, selection of proper materials and sizes for core of earth dam are very important. Thick clay core is proper for waterproofing but because of low shear strength of the clay, it would be dangerous for dam’s stability. The optimal core would be the core which has proper waterproofing, stability safety factor and also with economic condition. In this study, the aim is to determine the optimum size for clay core of Alavian dam near Maragheh city in steady state seepage condition. For this purposes, Geo-Studio pack is used for numerical simulation. In addition, simulation of seepage and slope stability for the built maps of the dam, 11 more models of the dam with different size of cores were tested to find the optimum core thickness. From these models, data required for objective function and constraints using regression techniques for seepage, hydraulic gradient and stability safety factor were provided. Results showed that optimized volume of the core is 35% smaller than the present core.
