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Estimation of siltation of the Tereblya-Rika hydroelectric station reservoir
Conclusions An estimation of the suspended-load discharge with the use of the existing data of hydrological yearbooks was not very reliable, since it gave quite underestimated results of the calculation in comparison with the actual volumes of siltation of the reservoir. The bed-load discharge calculated on the basis of data on the migration of meso-forms and a detailed analysis of the actual maximum runoff hydrographs of the Tereblya River, characterized by the transport of channel-forming sediments, is in good agreement with the data of the particle-size analysis of the reservoir siltation products and amounts to not more than 1% of the total sediment load. On the basis of a statistical analysis of the data of field observations, a lognormal relation was established between the volumes of water and sediment discharges, reflecting in a most generalizing form the main characteristics of fluvial processes of streams in the investigated region. With consideration of the substantial changes in the morphometric characteristics of the reservoir, it is economically advisable to change to the use of refined depth curves.
Estimation of siltation of the Tereblya-Rika hydroelectric station reservoir
Conclusions An estimation of the suspended-load discharge with the use of the existing data of hydrological yearbooks was not very reliable, since it gave quite underestimated results of the calculation in comparison with the actual volumes of siltation of the reservoir. The bed-load discharge calculated on the basis of data on the migration of meso-forms and a detailed analysis of the actual maximum runoff hydrographs of the Tereblya River, characterized by the transport of channel-forming sediments, is in good agreement with the data of the particle-size analysis of the reservoir siltation products and amounts to not more than 1% of the total sediment load. On the basis of a statistical analysis of the data of field observations, a lognormal relation was established between the volumes of water and sediment discharges, reflecting in a most generalizing form the main characteristics of fluvial processes of streams in the investigated region. With consideration of the substantial changes in the morphometric characteristics of the reservoir, it is economically advisable to change to the use of refined depth curves.
Estimation of siltation of the Tereblya-Rika hydroelectric station reservoir
Kuznets, A. Ya. (author) / Kaftan, A. N. (author) / Onishchuk, V. V. (author) / Bil'chuk, A. S. (author)
1988
Article (Journal)
English
BKL:
56.30
Wasserbau
Local classification TIB:
770/6550/8000
Estimation of siltation of the Tereblya-Rika hydroelectric station reservoir
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