Design of settling basins and related problems encountered in practice

Zaloğlu, Fatma Deniz
Settling basins are the hydraulic structures used to get sediment-free water from rivers mostly for hydropower systems. Mainly fine sediment is trapped along the settling basins and from time to time the accumulated sediment in the settling basin is flushed away. A wrong design of a settling basin creates lots of problems. In this study based on the hydraulic analysis of a settling basin, the available settling basin design procedures in the literature were reviewed. Some of the settling basins constructed in Turkey were studied and the problems observed in their operations were analyzed. In an experimental setup a series of experiments were conducted at the laboratory with two types of sediments, quartz and silisium , at various size ranges to determine their maximum settling distances as a function of sill height of the model. The related parameters were presented graphically in dimensionless forms.


Evaluation of eutrophication control strategies for the Keban Dam reservoir
Soyupak, S; Mukhallalati, L; Yemisen, D; Bayar, A; Yurteri, C (1997-04-15)
The reservoir of the Keban Dam in eastern Anatolia is a very deep and large water body subject to significant seasonal water level fluctuations within a given hydrological year. At the present time, different sections of the reservoir have different trophic status and the upper portion of the reservoir, in particular, is eutrophic. In this regard, there is a need for the assessment of alternative strategies to be implemented for phosphorus and thus eutrophication control in this segment of the reservoir. In...
Seismic Performance Evaluation of Concrete Gravity Dams by Using Pseudo Dynamic Testing and Simulations
Aldemir, Alper; Binici, Barış (null; 2017-11-24)
Dams are one of the mostimportantinfrastructure components servingfor water storage and energyproduction.Experimental studies on the seismic response of concrete gravity dams are scarce due to the complications regarding thelargescaleof dams and their interaction with the reservoir. This study presents the results of recent novel pseudo-dynamic dam tests (PSD) along with the nonlinear finite element simulations of the specimens. The test specimens were 1/75 scaled version of the highest ...
Tectonic history of basins sited along the western section of the North Anatolian Fault System, Turkey
SARP, Gülcan; Gurboga, Sule; Toprak, Vedat; Duzgun, Sebnem (2014-01-01)
Geological and geomorphological features of basins along the western half of the North Anatolian Fault System (NAFS) are used to constrain the formation of these basins by localization of deformation and the total displacement, and to determine the timing of basin development. In this study, tectonic influence direction of the NAFS on tectonic and hydrologic basins Bolu, Yenicaga, Dortdivan, Cerkes, Ilgaz and Tosya has been investigated to deduce information about the formation stages and interaction betwee...
Numerical modelling of reinforced concrete pressure tunnels using the overlapping lattice method
Işık, Gökberk; Tuncay, Kağan; Department of Earthquake Studies (2019)
Pressure tunnels transmit water from the reservoir to the turbines of hydroelectric power plants. The computational studies conducted to understand the behavior and shed light on the design guides of pressure tunnels were scarcely validated with experimental data as experimental work on pressure tunnels is very limited. Recent experimental studies on reinforced concrete pressure tunnels carried out at Middle East Technical University (METU), for the first time, allow computational models to be validated wit...
Hydraulic design of tyrolean weirs in hydropower plant projects
Maraş, Cihan; Göğüş, Mustafa; Department of Civil Engineering (2014)
Intake structures are defined as structures that divert water into a channel or tunnel leading to a powerhouse. A water intake structure must be able to divert the design discharge into the conveyance system with minimum head loss and negative impact on the local environment. Design and location of intakes are dependent on geological, hydraulic, structural and economic conditions. Tyrolean type water-intake structures are commonly constructed on steeply sloped mountain rivers with reliable rock foundation t...
Citation Formats
F. D. Zaloğlu, “Design of settling basins and related problems encountered in practice,” M.S. - Master of Science, Middle East Technical University, 2013.