SHORE PROTECTION ON THE PSOU RIVER
The erosion river-bank by stream water results from interaction of a river stream and continuous deformations of the course. The Psou River flows in Adlersky District of Sochi and is frontier of the Russian Federation. The right river bank is intensively washed away now (up to 5 meters a year). The considered sites of the coast are exposed to active erosive processes from the river. The water erosion is resulted by deformation of coast of the rivers and loss of significant areas of agriculturally used areas. Prevention of destruction requires construction of coast-protecting structure. At the choice of the optimal design solution of an antierosion coast-protecting structure it is necessary to consider hydrological factors and morphology of the river. In work the model of distribution of a water stream is considered and by results of inspection and calculations it is recommended to stream to build the afflux permeable bank and a coast-protecting gabionny meshy. The afflux permeable bank is established in a riding part of the protected site for the purpose of a flow deflection of a flood stream from the right coast, which is affected now by currents with big speeds, which create threat of destruction along coastal fortification. Structurally the dam represents a permeable construction from six tiers of the concrete massifs stacked on the prepared basis. Head part of a dam strengthen sixteen concrete massifs on 11,8 t everyone. Length of a dam is 60 m, dam width in the basis – 10 m.