A most efficient trapezoidal section is required to give a maximum discharge of 21.5 m3/s of
water. The slope of the channel bottom is 1 in 2500. Taking C = 70 m1/2/s in Chezy’s equation, determine the
dimensions of the channel. Also determine the value of Manning’s n, taking the value of velocity of flow as
obtained for the channel by Chezy’s equation.
Unit weight of materials used in Construction The unit weight of materials is an important factor to consider in engineering and construction projects. It refers to the weight of a material per unit volume, typically
Question For the smooth vertical wall shown in Figure Q1, determine the total active thrust on the wall and the position where it acts. Ground water level is at a depth of 1.5 m. Solution
Question A 10 m high retaining wall has been holding a soil with the following composition: G=2.65, e= 0.50, w=10%, and Ф=20 degrees. Determine the active thrust on the wall due to soil and water,
Question For the smooth vertical wall shown in figure below. Determine the total active thrust on the wall and the position where it acts. ground water level is at a depth of 1.5m Solution