DBPapers
DOI: 10.5593/SGEM2014/B31/S12.046

HYDRAULIC FACTORS INFLUENCING THE RIVER BED THAT ARE CAUSED BY RIVER NAVIGATION

B. TOTHOVA, L. MOZIESIK
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-13-1 / ISSN 1314-2704, June 19-25, 2014, Book 3, Vol. 1, 353-360 pp

ABSTRACT
Paper deals with navigability issue of river lower section of river Váh. Current parameters of the fairway at lower section of river Váh don’t meet the needs of safe and capacitive waterway transport. Navigation conditions are still not sufficient enough for river navigation especially in the stretch waterworks Selice – Komárno (approx. 44 km). Only a limited river navigation is currently possible in this section. It is necessary to build waterworks (the WW) Kolárovo and to modify the river bed by applying the appropriate measures. The specialily of lower section of river Váh represents the dynamic sediment mode of river bed that is caused mainly by grain composition (fine sands and clay). By more intensive river navigation the dynamic sedimentary mode will also be more intensive. This paper is mainly focused on the explanation of hydraulic loads of river bed which are caused by river navigation. Undulation, convection, rapid decline of the water level, backwater of the water level and the inflow of groundwater are among the effects occuring during river navigation. There is a need the river banks are durable enough in order to ensure the stability against these effects. It is necessary to look for river bank ensuring solutions for reaching the maximal integration of river bank into the environmnet and also for meeting the purpose of slope construction. Proposed measures need to be appropriately chosen so that the banks and the river bed will be withstanding not only the natural events but the prepared river navigation also.

Keywords: River Váh, River navigation, Hydraulic factors