4. A trapezoidal channel carrying a discharge of 0.75 m3/s is to be lined with concrete to avoid seepage problems. Calcu
Posted: Wed May 04, 2022 9:13 am
4. A trapezoidal channel carrying a discharge of 0.75 m3/s is to be lined with concrete to avoid seepage problems. Calculate the channels dimensions which will minimise the amount of concrete when Manning's n for concrete is 0.015 and the channel slope is 1 in 1250 (for a hexagonal channel d=0.37 m; b=0.8 m. Note that other answers are possible depending on choice of side slope).