Experimental Investigation of the Effect of Gabion-Shaped Obstacles on Sedimentation

The researchers tried to build gabion barriers by considering the materials around the dam. In this study, gabion barriers with applicability were used, in which trapezoidal barriers were made using metal mesh and these barriers were filled with sand grains with an average size of 0.5 cm. The reason for using these dimensions of aggregate was the presence of stones with dimensions of 0.5 meters in nature, and if the laboratory results are suitable, it is possible to use them in the implementation, while proper slope. According to the executive criteria, it was considered to build the sides of the barrier in order to evaluate the possibility of falling aggregates. In this design, an attempt has been made to investigate the effect of gabion barriers on the percentage reduction of flow head flow. To better understand their efficiency in different conditions, some important parameters such as concentration, inlet discharge, slope and height of barriers have been considered.