Assessment of maximum water discharge effect on river bed evolution.
2023
The mountainous terrain of Georgia and the current trends of climate change increase the frequency of catastrophic events, which is an indicator that during intense rains there is a large amount of water flows and significant bed deformations. The main element of calculation of hydraulic constructions corresponding to these deformations is a value of maximum water discharge, determination of which is a complicated problem due to a question raised regarding the probability (percent provision) of this value, range of which is quite large – from 5% to 0,01%. In general, the less is the value of this probability, the more are the material expenses in the construction process (along with reliability). Different countries use different approaches when calculating maximum water discharges at the river crossings. Though, every single case has to be considered on the individual basis, the development of the common methodology, which gives us a result, close to the maximum to reality is no less important. Ref. 4.
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