a v-shaped channel, build of unplanned timber 0.080 m/ with a velocity of 2.5 m/s. each of the sides makes an angle of 45° with the horizontal. determine the slope if n = 0.014
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- Determine the critical slope for a rectangular smooth concrete flume (n=0.013) 4.5m wide which is to carry 4.5 m^3/s. Determine the critical depth for a rectangular smooth concrete flume (n=0.013) 4.5m wide which is to carry 4.5 m^3/s per meter width of channel.The critical slope is the slope that will maintain a uniform and critical flow in a canal with constant discharge. When the discharge of the canal is 11 cms, width of 6 m, side slope, z = 2 and n = 0.025, the critical slope isDetermine the critical slope for a smooth wooden flume of rectangular cross-section, 3.6 m wide carrying 2.7 m³/s.
- A cement lined rectangular channel 6m wide carries water at the rate of 30m3/s. Find the value of Manning’s constant, if the slope required to maintain a depth of 1.5m is 0.00118.A canal cut in rock (n — 0.030) is trapezoidal in section with a bottom width of 6.10 m and side slopes of 1 on 1. The allowable average velocity is 0.76 m/s. What slope will produce 5.66 m /s?A long slope is made up of a cohesionless (c'=0) soil with the internal friction angle of 34°. If the water table rises to the surface of the slope, then determine the maximum possible value of the slope angle to get a factor of safety of 1.5. Take saturated unit weight as18 kN/m3 and the unit weight of water as 10 kN/m3.
- An infinite slope is inclined at 22 degree. A plane of failure has developed at depth of 8 m from the surface. Given dry unit weight = 18kN/m3, c’ = 12kN/m2, angle of friction = 23.5 degree and saturated unit weight = 23kN/m3. Calculate the slope factor of safety if: (i) water table exists far from the slip line3. An infinite slope has shear strength parameters at the interface: c = 30 kPa, φ = 30°, γ = 17 kN/m3 (Assume 1 m strip perpendicular to the paper and 1 m strip along the inclination of the infinite slope). a. If H = 5 m, and β = 20°, find the sliding force. b. If H = 5 m, and β = 20°, find the force that resist sliding on the rock surface. c. If HCR = 8 m, find the minimum angle β so that the slope is stable.Find the required slope of a rectangular open channel when the water flows at a rate of 20,000 L/s, having a base width of 4m and depth water depth of 2.5m. (n = 0.013)
- Determine the critical slope for a rectangular smooth concrete flume (n=0.013) 4.5m wide which is to carry 4.5 m3/s per meter width of channel. Unit of answer: n/a No. of decimal places: 4A rectangular channel 1 m wide, Chézy C = 60, S = 0.0064, carries 1 m/s. Determine the velocity.2) A cutting is to be formed on a section of a proposed road of formation width 10.00 m. The transverse slope at right-angles to the proposed centre line is 1 in 8 and the existing ground levels at chainages 1750 m, 1800 m and 1850 m are 176.32 m, 175.18 m and 174.87 m, respectively. The reduced level of the formation centre line at chainage 1750 m is 173.65 m and the formation is to have a falling gradient of 4% from chainage 1750 m to chainage 1850 m. The side slopes are to be 1 in 3. Calculate the volume of cut required to form the cutting between chainages 1750 m and 1850 m.
