Investigation of Stability in earth dam using Ansys, and Geo –Studio Software
Subject Areas : Irrigation and Drainageعلی دلوری نژاد 1 , هوشنگ حسونی زاده 2 , امیرعباس کمان بدست 3
1 - گروه عمران-آب، دانشگاه آزاد اسلامی ،واحد شوشتر، ایران.
2 - گروه مهندسی آب،دانشکده علوم آب،دانشگاه آزاد اسلامی، واحد شوشتر، ایران.
3 - گروه مهندسی آب،دانشکده کشاورزی ،دانشگاه آزاد اسلامی، واحد اهواز، ایران.
Keywords: Stability, المان محدود, پایداری, ANSYS, Earth dam, subside, Finite elements, سد خاکی,
Abstract :
Analysis of seepage and stability is considered as an important case in designing which today, withadvanced numeric software acceptable results will be obtained before and after Construction. In thepresent study, the behavior of earth dam against effective factors was investigated by softwareAnsys12. The studied dam is Maroun soil dam, which is located in 19Km north of Behbehan andconstructed on Maroun River. This dam is soil- gravely dam. It was tried in this research that stabilityof dam be evaluated by finite element method and Ansys software, and then compare by softwareresults like Geo-studio. At first Following, the stability of dam slope was considered and the behaviorof dam was stimulated by several methods and there were relatively same results for the amount ofsafety factor and unstable surface. Safety factor was 4.21 for upstream by bishop method in Ansys and4.71 in Geo-studio and for downstream 1.5, 1.8, respectively. Finally, the maximum and minimumamount of tension was determined by analyzing tension, strain and movement and the areas withdifferent sediments and possible cracking and subside regions were determined. In this part, bothsoftwares provided relatively same results and the maximum amount of movement in dam estimated5-6 meters. However, both softwares are best ones in analyzing and finite method and completelycorrect introducing of current conditions could have acceptable analyses.