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1 Popek Z.

1 2008

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Zmienność natężenia ruchu rumowiska wleczonego w czasie wezbrania w małej rzece nizinnej

Popek Z.

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

2008

Vol. 17, No. 2

78--86

In the paper are shown analysis’ results of bedload transport variability during fl ood fl ow event observed in the Zagożdżonka River. The bedload measurement station, which is provided with bedload trap and instruments for continuous measuring and data recording, is located upstream of Czarna gauge station on research catchment area of Dept. of Hydraulic Engineering and Environmental Recultivation WULS. Based on measurements’ results of the flow and bedload transport parameters the correlation formulas (12) and (13) were determined, respectively for rising limb and recession of discharge hydrograph. For determination’s purpose of formulas (12) and (13) the Bagnold’s relationship (3) were used, modified by author to the form (5), in which specific bedload discharge depends on specific stream power, hydraulic radius for river-channel bottom and median size of bed material.