Abstract
The article presents field research conducted in Langar, Dehkanabad, Shurabsoy flood reservoirs in the Kashkadarya region. Many problems result from floods in the reservoirs; there are disturbances in the discharge and drainage facilities during the passage of accidental floods. At the same time, there was a large accumulation of turbid sediments in flood reservoirs. In the article, the calculations using empirical formulas for predicting the number of turbid sediments in Langar, Dehkanabad, Shurabsoy flood reservoirs up to 2025-2030 years are also presented, and it is noted that at present, their useless volumes are full of turbid sediments. Preliminary recommendations for assessing the safety of flood reservoirs have been developed.
Highlights
As a result of global climate change on our planet, the frequency of natural hazards in nature is increasing
In Central Asia, including the regions of the Republic of Uzbekistan, floods and other dangerous natural phenomena have become more frequent over the past decade as a result of climate change
The flood reservoir basin continues to be filled with turbid sediments
Summary
As a result of global climate change on our planet, the frequency of natural hazards in nature is increasing. Considering the current technical condition of all hydro-technical structures in the Langar flood reservoir, the turbid volume of the basin was determined in 2011 and amounted to 2.98 million m3. Considering the current technical condition of all hydraulic structures in the Dehkanabad flood reservoir, the volume of muddy sediments in the basin in 2010 amounted to 15.4 mln.m3.
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