نوع مقاله : مقاله پژوهشی
نویسندگان
گروه مهندسی ژئوتکنیک، دانشکده مهندسی عمران، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In the current research, three coarse grained soils and four geo-grids of the same material but of different aperture size have been used. Experiments have been conducted using large direct shear box. Results have been employed to assess the effects of grain and aperture size on the shear strength of reinforced soils and comparing these results with the shear strength of unreinforced soils. The obtained results show that for a soil with a specific grain size distribution, there is a geo-grid with a specific aperture size which produces the maximum increase in shear strength. In addition, for each particular soil there is a specific aperture ratio that results in the highest shear strength. The maximum and the minimum interaction coefficients for all samples have been determined, which is an indication of the best and the worst soil–geogrid interaction.
کلیدواژهها [English]
)