- مبلغ: ۸۶,۰۰۰ تومان
- مبلغ: ۹۱,۰۰۰ تومان
Metallic reinforcements are widedly used in Mechanically Stabilised Earth structures. However, to face cases where the backfill is chemically aggressive, systems incorporating the use of non corrodible synthetic reinforcements have been developed, in particular in the form of strips. These synthetic reinforcements present a more complex behaviour due to their relative extensibility. It is thus necessary to refine the current friction models of the soil/reinforcement interface in order to lead to a more realistic modelling. Several pull-out tests have been carried out (Abdelouhab et al 2009) to study the behaviour of the synthetic straps and to deduce the interaction parameters at the soil reinforcement interface in fine sand. This paper completes that study and first presents the results of pull-out tests carried out on the same synthetic reinforcements but in gravel. It highlights the influence of soil type on the interaction interface. In the second part, a newly developed design of synthetic strips is tested and validated by pull-out tests.