Regime Approach to the Design of Drainage Channels
In designing any water conveyance channel the engineer is very much concerned that the cross-section and slope of the channel will remain stable, thereby reducing maintenance costs and avoiding disruption to adjacent land by bank erosion and shifting of the channel course. The Regime method was originally developed in the Indo-Gangetic plain for the design of large irrigation canal systems so that they remained reasonably stable and free of operational problems. It must be remembered however that, as compared with drainage channels and rivers, the discharge in an irrigation canal during the operating season is relatively constant. Accordingly it is not possible simply to translate the Regime method equations for the design of irrigation canals into equations for the design of drainage channels. Some thought has to be given to selecting a characteristic discharge from amongst the whole range of flows which occur in the channel. This paper is not specifically concerned with the straightforward application of Regime method equations, but rather makes use of the regime concept of a channel which is in balance with the water and sediment flowing in it.
KeywordsSediment Transport Fine Sediment Drainage Channel Irrigation Canal Stable Channel
Unable to display preview. Download preview PDF.
- Blench, Thomas (1957) “Regime behaviour of canals and rivers”, Butterworths, London.Google Scholar
- Castello-Branch, V. (1983) “Investigations related to the design of flood diversion channels”, Ph.D. thesis, University of Southampton.Google Scholar
- Colby, B.R. (1964) “Discharge of sands and mean-velocity relationships in sand-bed streams”. U.S. Geological Survey, Professional Paper 462-A.Google Scholar
- Dury, G.H. (1959) “Analysis of regional flood frequency on the Nene and Great Ouse”. Geogr. J vol 125.Google Scholar
- Einstein, H.A. and Barbarossa, N.L. (1951) “River channel roughness”, Jnl Hydraulics Division ASCE vol 77.Google Scholar
- Holy, M. (1966) “Protection against sedimentation in drainage channels”, International Commission on Irrigation and Drainage, Sixth Congress, Question 20, R11.Google Scholar
- Lacey, G. (1929) “Stable channels in alluvium”. Proceedings Institution of Civil Engineers, Proc. paper 4736 vol 229.Google Scholar
- Lacey, G. (1933) “Uniform flow in alluvial rivers and canals”, Proceedings, Institution of Civil Engineers, Proc. paper 4893, vol 237.Google Scholar
- Nixon, Marshall (1959) “A study of the bank-full discharges on rivers in England and Wales”, Proceedings, Institution of Civil Engineers, Proc. Paper no. 6322.Google Scholar
- Scott, P.A., Camacho, R.F. and Sharman, F.A. (1960) “The reclamation and irrigation of the Black Bush Polder in British Guiana”. Conference on Civil Engineering Problems Overseas, ICE, paper no. 4.Google Scholar
- Smith, K.V.H. and Yates, T.J. (1973) Civil Engineering Department, University of Southampton, Departmental Report CE/7/73.Google Scholar
- Wolman, M.G. and Leopold, L.B. (1957) “River flood plains: some observations on their formation”, U.S. Geological Survey Prof. Paper 282 C.Google Scholar