Laboratory-Numerical Evaluation of Semi-Prefabricated Block Pavement on Sandy and Weak Subgrade (National-Applied Plan)

Preparing the roads in the first period after the accidents and strengthening them against natural destructive factors is the preservation of national assets. Roads with low traffic and passages along the desert and beaches lose their resistance when water currents occur and it is not possible to establish traffic flow. On the other hand, in normal times, walking in these spaces is considered as the main model of sports and recreation in these areas. Pavement subgrade in these areas is often made of sand with low bearing capacity. Therefore, providing a suitable pavement for these areas is of special importance.

In laboratory modeling, it was shown that increasing the bed moisture sharply reduces the settling of block pavement and increases the settling rate. Numerical analysis on finite element model deformation showed that the distance between the golden appendages reduces the surface deformation and the possibility of failure. Creating a suitable pavement in critical situations for the flow of heavy traffic during emergency relief, especially in the case of permeable runoff in sandy subgrade in the desert and sea areas.