Interaction of Submerged Vanes with a Flow of Two Phases: Experimental Study of Stream Bank Erosion

The investigation realizes the analysis of the flow to two phases of a fluvial bed to obtain the respective numerical model. In addition, plates submerged in the riverbank were used as a technique to mitigate erosion. To determine the arrangement of the submerged plates, the vulnerable zones of the river were compared with the use of submerged plates and without their use. In this way it was possible to evaluate the influence of the submerged plates on the flow and propose the technique for the protection of the riverbed. In relation to the difficulties of the management of sediments in Peru, the absence of effective measures has generated problems and damages in the infrastructure. Abutment scour in bridges generates damage to the abutments or pillars. In the same way erosion on the riverbank threatens the roads that have been built near of the stream bank. Also It is a problem related to the transport of sediment: The deposition of sediments generates navigation interferences in the rivers. Consequently, sediments reduce the transport capacity of rivers. Therefore, it is necessary to carry out studies that allow the development of techniques and achieve an optimal use of rivers. One technique to sediment management and mitigate erosion is the use of submerged vanes in fluvial beds. Thus this investigation evaluate the behavior of the riverbed material, determine the effects of submerged vanes given their characteristic shape and type material. In this way the investigation recommend the disposal of submerged vanes in vulnerable areas of the river for its eventual scour solution.