نوع مقاله : مقاله پژوهشی
نویسندگان
دانشکده مهندسی عمران، دانشگاه یزد، یزد، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In excavation projects, the presence of convex corners makes 2D analyses inaccurate. This study investigates the effect of these corners on the deformation of retaining walls using 3D modeling. The present study uses FLAC3D software for two-dimensional and three-dimensional numerical modeling to study the effect of convex corners on the deformations caused by excavation for walls stabilized by anchor rod method. It also examines the effect of various parameters such as soil type, soil adhesion, pit height and reliability coefficient on the deformation rate of the convex corner. The results of the present study show that the length of the corner-affected area (the area around the convex corner where the values of the three-dimensional displacement ratio at the location of the crown pit is greater than the two-dimensional corresponding value) decreases with the decrease in soil resistance. So, in weak, medium and strong soil, it is 2H, 1.5H and 1.25H respectively. Due to the influence of the three-dimensional geometry of the convex corner, the three-dimensional reliability coefficient values are lower than the corresponding two-dimensional values.
کلیدواژهها [English]
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