Page - 433 - in Book of Full Papers - Symposium Hydro Engineering

[8] Leliavsky, S. (1954) An Introduction to Fluvial Hydraulics, Constable and Co. Ltd. Pp 70-72. [9] Meyer-Peter and Muller(1948) Formula for Bed Load Transport, proc. IAHR, 2nd Congress, Stockholm. [10] Milliman, J.D., Meade, R.H. (1983) “Worldwide Delivery of River Sediments to Ocean.” Journal of Geology 91, 1–19.Milliman, J.D., Meade, R.H., (1983) Worldwide Delivery of River Sediments to Ocean.” Journal of Geology 91, 1-19 [11] Neilsen, A. F. (2000) Isotope Tracer Demonstration at the Port of Songkhla, Thailand, Sediment Transport Modelling, WRL Technical Report No 99/65. [12] Ranga Raju, K.G. (1986) Sedimentation of Rivers, Reservoirs and Canals, International Journal of Fresh Surface Water, vol. III. [13] Shulits, S. (1935) The Schoklitsch Bed Load Formula. Engineering, June. [14] Singh, M., Singh, I.B., and Müller, G. (2006) Sediment Characteristics and Transportation Dynamics of the Ganga River, Science Direct. Elsevier B.V. Geomorphology 86 (2007) 144–175 [15] Sonam Choden(2009) Sediment Transport Studies in Punatsangchu River, Bhutan, Division of Water Resources Engineering, Lund University [16] Subramanya, K. (2009) Flow in Open Channels, Tata McGraw-Hill Education, 548 pages SUMMARY Quantitative estimate of sediment transport in alluvial channels is one of the most important task in river engineering for project planning, design, construction, operation and maintenance of hydraulic structures such as river (bridges and training dikes ), reservoirs (dams and barrages,), lakes and coastal (jetties, berths, breakwaters, dikes, wave absorbers, revetment, seawalls and bulkheads). Even today, numerical models of sediment transport processes are confronted with some difficulties, often of conceptual nature. One of these difficulties is the simulation of unsteady non-uniform sediment transport. This paper describes sediment transport theory in brief, empirical equations proposed by different investigators such as Camenen and Larson, Engelund and Hansen, Ackers and White’s, Meyer-Peter and Muller, Nielsen, Bagnold, Bijker, method. Macroscopic concept based on single sediment size has been used for computations. Present research paper is compilation of work carried out by various investigators for steady state and unsteady state flow condition. Published data of Sediment Transport collected over 20 years in Punatsangchhu river basin by Division of Water Resources Engineering, Bhutan is used for analysis. Performance of empirical equations for Bhutan/Indian sub continent is evaluated and presented in a tabular form. New mathematical equations in a log, power and binomial form for steady state flow are compared with various methods as mentioned above. Results obtained by unsteady state equation proposed by author match with observed quantum of sediment. This 433