METHOD FOR PROTECTION OF COASTAL LANDSCAPE OF RIVERS AGAINST UNDERFLOODING Russian patent published in 2015 - IPC E02B3/04 E02B3/02 

FIELD: construction.

SUBSTANCE: implement complex of investigations - route survey of bed region, geodetic-engineering, geological, morphological, hydrological and soil - environmental investigations. Historical natural coastline of the river is determined by dividing the bed into transverse cross-sections. Depth of bottom sediments is determined by means of samples. Samples are taken in each cross-section at regular distances. The planning map is made according to the obtained results. Comparing the hydrological and geodetic surveys, cross-sections are built, on which the slope of the coastal landscape and level of flooding is represented. The depth of bed cleaning is determined by formula: $$h_c=2\cdot \Delta h\cdot (1+\frac{\Delta h}{b_n}),$$ where h_c - depth of the bed cleaning by the fairway; b_n - width of the restored, natural bed; Δh - level of flooding; i - slope of the coastal landscape to the water's edge. The depth on transverse profiles is specified. The river bottom is formed, taking into account the natural coastline. Dredge is used as the mechanism for removal and transportation of bottom sediments.

EFFECT: improving the efficiency of protection of coastal zones.

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