Two channels sections the first is rectangular with water depth = 3 m and width=3. the second sec. is trapezoidal with water depth= 3 m, bed width = 3 and side slope 1/2. what are the wetted perimeter and ?hydraulic radius for these two sections p= 6, R= 1., P= 15, R= 1.64 O O p= 12, R=0.75, P= 16.41, R= 2 p= 9, R=1., P= 16.41, R= 1.64

Two channels sections the first is rectangular with water depth = 3 m and width=3. the second sec. is trapezoidal with water depth= 3 m, bed width = 3 and side slope 1/2. what are the wetted perimeter and ?hydraulic radius for these two sections p= 6, R= 1., P= 15, R= 1.64 O O p= 12, R=0.75, P= 16.41, R= 2 p= 9, R=1., P= 16.41, R= 1.64

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter9: In Situ Stresses

Section: Chapter Questions

Problem 9.10P

See similar textbooks

Similar questions

A trapezoidal channel with these conditions: Left side slope = 3H:2V Right side slope = vertical ... has a bottom width of 4 meters and depth of 6 meters. Determine the hydraulic radius in meters
A trapezoidal section of 2 m bottom width, carries a discharge of 4 M3/s. The channel’s raughness is 0.025. What is the condition of the best hydraulic section to calculate the channel bottom slope?
The trapezoidal channel is to carry 18 m^3/s of flowrate with a bottom slope of 0.0009. Given that Manning’s n is 0.026 and the sides of channel are inclined 63.4° to the vertical, determine the bottom width, depth and velocity for the best hydraulic section.
A trapezoidal channel with side slope of 2H-1V has a flow rate of 160 m3/s and depth of 4 meters. The slope is 1m per kilometer. Determine corresponding bottom width in meters. Answer pls
Determine the best hydraulic section for rectangular channel that can carry 3.33m3/s.
A vertical cut is made through a homogeneous soil mass (c=20kPa, φ=20deg, γ=16.5kN/m3). Using Culmann's method, determine the safe depth of the cut, taking a factor of safety of 2.0.
An unsymmetrical trapezoidal channel with one side inclined from horizontal by 35 degree and the other inclined from vertical by 40degree is to be designed to carry a 2.0 cubic meters per second discharge. Determine the dimensions of the channel for most efficient section if roughness coefficient is 0.030 and average longitudinal slope is 0.05. Draw the cross section of the open channel considering the freeboard height. Use Chezy and Kutter’s C formula.
A retaining wall has a vertical back and is 7.32 m high. The soil is sandy loam of unit weight 17.30 KN/cum, it shows a cohesion of 12KPa and angle of friction 20 degrees. Neglecting the wall friction, determine the thrust on the wall in KN/m. The upper surface of the fill is horizontal. 121 343 232 104
An unsymmetrical trapezoidal channel with one side inclined from vertical by 35o and the other inclined from horizontal by 40o is to be designed to carry a 2.5 cubic meters per second discharge. Determine the dimensions of the channel for most efficient section if roughness coefficient is 0.025 and average longitudinal slope is 0.05. Draw the cross section of the open channel considering the freeboard height. Use Chezy and Kutter’s C formula.
A trapezoidal channel with sidewalls of 60 degrees has a bottom width of 4 m at total depth of 5 m and has a constant bedslope of 0.005. A flow of 40 m3/s fills the channel to a depth of 3.5 m, the maximum for normal operation. Downstream a topographic constriction requires that the channel be rectangular with a maximum width of 4 m. Assuming no changes in materials and no energy losses, estimate the depth in the downstream rectangular section and recommend a total depth for the rectangular channel.
Water flows uniformly in a rectangular concrete open channel that is 10 m wide at a depth of 3m. The channel slope is 0.0025. Using n = 0.013. Find the velocity, flow rate and the boundary shear stress.
Triangular or “V” shaped channel with the sides inclined at an angle, θ = 60O from the horizontal and the depth, d= 0.75m from the apex, find the hydraulic radius