Channel Design to Minimize Lining Material Costs

by Thomas J. Trout, (M.ASCE), Agricultural Engr.; U.S. Dept. of Agr., Agricultural Research Service, Snake River Conservation Research Center, Kimberly, Idaho 83341,


Serial Information: Journal of the Irrigation and Drainage Division, 1982, Vol. 108, Issue 4, Pg. 242-249

Document Type: Journal Paper


A direct algebraic technique is developed to determine open channel cross-sectional designs which minimize lining material costs when base and side wall unit costs are different. Solution graphs, which indicate both the optimal parameter combination and the costs of deviating from the optimal design, are presented. The graphs or analytical technique are also effective in designing any trapezoidal channels. Use of the technique shows that moderate deviations from optimal designs are not costly.

Subject Headings: Hydraulic design | Linings | Base course | Open channels | Cross sections | Walls | Parameters (statistics) | Trapezoidal channels

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