engleski

Impact of river training works on the Drava River flow regime

The 32% of the most downstream Drava River section for low navigable water level of freeflow river does not meet minimal requirements for navigation due to the insufficient fairway depth. Aim of this paper is to estimate impact of proposed river training structures on long term morphologic development for 4 critical locations and evaluate the layout of structures on fairway conditions. For this purpose, 4 types of river training structures are proposed to be strategically grouped on critical locations. Evaluation of proposed river structures effectiveness is done using coupled flow/sediment transport 2D numerical model results: flow depth, width and local flow velocity within the fairway. Results have shown that construction of river training structures has local impact on hydraulic and sediment regime, while its influence on hydrologic regime has global character throughout the river section.

groynes, T-shape groynes, detached groynes, Chevron dikes, Drava River fairway

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