Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
EVALUATION OF BED LOAD EQUATION USING TAPI RIVER DATA, INDIA
The bed load transport in the rivers has been studied by various investigators in the past. They developed bed load transport equation for particular size of sediment in a non uniform bed material, where as the influence of other sizes of sediments has been neglected. In the present paper the rate of bed load transport in weight per unit width for non uniform bed material considering the various variables like discharge, hydraulic mean depth, flow velocity, bed slope etc. by collecting the field data of Tapi River for 15 years, Monsoon season, Sarangkheda gauging station has been computed. Tapi River is alluvial, westward flowing river of India. On the down stream side of gauging station an Ukai dam is constructed which is a multipurpose dam used for irrigation and power development purposes. The sedimentation of the reservoir is one of the problems faced by the dam and which may reduce the life of dam. The majority of the bed load formulae represent a functional relation between bed load discharge and shear stress. The formulae are characterized by three aspects namely the basic function qb = A f (t0-tc)., the characteristic grain-size to be used and the correction applied to bed load equations. The main objectives of this paper are to estimate bed load of Monsoon season, using various measured parameters. The rate of bed load transport in weight per unit width is computed using Shields equation. The mathematical model has been developed using effective shear stress and bed load. The statistical analysis, multiple regression and curve fitting (by nonlinear square fitter) is carried out by using allometric function of Micro cal Origin 6.1. The new bed load equation for Tapi River, Monsoon season for Sarangkheda gauging station is proposed. The proposed bed load equation is tested using five years data of Tapi River. Also, model is tested using data of seven world rivers. The statistical analysis is carried out by computing rmse, inequality ratio and discrepancy ratio. The analysis suggests good agreement between measured and predicted bed load for 8 out of 10 rivers data.
EVALUATION OF BED LOAD EQUATION USING TAPI RIVER DATA, INDIA
The bed load transport in the rivers has been studied by various investigators in the past. They developed bed load transport equation for particular size of sediment in a non uniform bed material, where as the influence of other sizes of sediments has been neglected. In the present paper the rate of bed load transport in weight per unit width for non uniform bed material considering the various variables like discharge, hydraulic mean depth, flow velocity, bed slope etc. by collecting the field data of Tapi River for 15 years, Monsoon season, Sarangkheda gauging station has been computed. Tapi River is alluvial, westward flowing river of India. On the down stream side of gauging station an Ukai dam is constructed which is a multipurpose dam used for irrigation and power development purposes. The sedimentation of the reservoir is one of the problems faced by the dam and which may reduce the life of dam. The majority of the bed load formulae represent a functional relation between bed load discharge and shear stress. The formulae are characterized by three aspects namely the basic function qb = A f (t0-tc)., the characteristic grain-size to be used and the correction applied to bed load equations. The main objectives of this paper are to estimate bed load of Monsoon season, using various measured parameters. The rate of bed load transport in weight per unit width is computed using Shields equation. The mathematical model has been developed using effective shear stress and bed load. The statistical analysis, multiple regression and curve fitting (by nonlinear square fitter) is carried out by using allometric function of Micro cal Origin 6.1. The new bed load equation for Tapi River, Monsoon season for Sarangkheda gauging station is proposed. The proposed bed load equation is tested using five years data of Tapi River. Also, model is tested using data of seven world rivers. The statistical analysis is carried out by computing rmse, inequality ratio and discrepancy ratio. The analysis suggests good agreement between measured and predicted bed load for 8 out of 10 rivers data.
EVALUATION OF BED LOAD EQUATION USING TAPI RIVER DATA, INDIA
Prof.Yadav, S. M. (Autor:in) / Dr.Samtani, B. K. (Autor:in)
ISH Journal of Hydraulic Engineering ; 15 ; 1-13
01.01.2009
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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