| LONG TERM EFFECTS OF REHABILITATION MEASURES ON BED LOAD TRANSPORT AT THE SALZACH RIVER |
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| 作者姓名： | Sven HARTMANN Institute for Hydrosciences German Armed Forces University Munich Neubiberg Germany. |
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| 作者单位： | Sven HARTMANN Institute for Hydrosciences，German Armed Forces University Munich，85577 Neubiberg，Germany. |
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| 摘 要： | 1 BASIC PROBLEMFlood protecton, sPreaing of settlements and occuPatin Of river valleys were maor reasons to damand lindt rivers throughout Europe in the ndd 19th century. Engineers of those days often knew very wellabout the effects of their plannings: shortening the river length would accelerat the now and thusencourage the erosion into the river's sedAnents. Two vital advanages could be obtalned from that kindof constrUction, landuse of the fOrmer flood plains on the one and increasin…
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LONG TERM EFFECTS OF REHABILITATION MEASURES ON BED LOAD TRANSPORT AT THE SALZACH RIVER |
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| Sven HARTMANN Institute for Hydrosciences,German Armed Forces University Munich, Neubiberg,Germany..LONG TERM EFFECTS OF REHABILITATION MEASURES ON BED LOAD TRANSPORT AT THE SALZACH RIVER[J].International Journal of Sediment Research,2001,16(2). |
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| Authors: | Sven HARTMANN |
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| Abstract: | The river Salzach and its tributary Saalach as part of the border line between Germany and Austria represents a permanent water management problem since centuries. While in former times threats for the people mainly arose from severe flood events the present situation is characterized by significant ecological deficits. These were caused by a rectification of the river resulting in a concentration of the flow followed by erosion of the river bed. The situation got worse in the late 60s after construction of hydropower plants started upstream holding back nearly all bed load material. The degradation of the river bed in the downstream section of the Salzach is stated critical by the authorities in respect of the lack of sufficient gravel remaining on top of fine material. As erosion processes of fine sand and silt cannot be predicted accurately but will be probably much faster than those of the gravel bed measures are necessary to stabilize the river bottom to avoid major damages of the embankments and further degradation of the groundwater table. Different alternatives were investigated in a framework of a wide range of studies over the past years. One of the major tasks was to estimate the long term effects on bed load transport. |
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| Keywords: | Bed load transport Numerical simulation Long term effects Sediment management River rehabilitation |
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