ترجمه مقاله نقش ضروری ارتباطات 6G با چشم انداز صنعت 4.0
- مبلغ: ۸۶,۰۰۰ تومان
ترجمه مقاله پایداری توسعه شهری، تعدیل ساختار صنعتی و کارایی کاربری زمین
- مبلغ: ۹۱,۰۰۰ تومان
Various types of reinforcement are used in Mechanically Stabilised Earth (MSE) structures; such as vertical or inclined walls, with different ranges of stiffness, from quasi non-extensible (steel) to much more extensible elements made of polymeric materials. Most of the knowledge regarding the internal behaviour of such structures was obtained from full scale and small scale instrumentation of steelreinforced structures. Synthetic reinforcement, for example made of high-tenacity polyester yarns, are more extensible and lead to a more complex behaviour of the structure. In 2008, several laboratory pullout tests of synthetic straps in fine sand were been carried out and analytical models of their behaviour have been proposed. The soil/reinforcement interaction parameters deduced from these tests will, without doubt, be different in other types of soil. This paper presents the results of pull-out tests carried out in a coarse fill and then modelled by an analytical method based on friction and strip stiffness models. Introduction of this model in calculation codes will allow one to take into account the phenomenon of soil/reinforcement interaction in structures reinforced using synthetic straps, before further optimising the design methods, based conservatively on the observation of steel-reinforced structures.