PROVISION OF DIKE SLOPE STABILITY FOR TERRITORY PROTECTION AGAINST GORYN RIVER FLOODS

Hydrologic conditions that cause the Goryn river floods have been described in the paper. The paper considers engineering solutions pertaining to prevention of catastrophic floodings by bifurcation of maximum river flow while constructing a watershed dike and creating a non-flood polder in the flood plain. The formulas have been developed for calculation of dike slope fixing by dumped riprap when the slopes are subjected to stream impact. The paper provides an analysis of existing dependences for calculation of riprap material size in order to protect slopes against waves. The possible ways for lower cost of fixation while using waste tyres and also while constructing small wave-suppressing dikes reinforced by dumped riprap and shrub vegetation along the main dike have been revealed in the paper.