Exercise [4]Determine the diameter of pipe drains that drain out 24 mishara ofdrainage area with drainage coefficient of 1.5 cm/day. The drain gradeis 0.004. Manning's n=0.013. Use Chezy's Formula.1

Given information in question Roughness coefficient Drainage coefficient Gradient

Answered: Determine the diameter of pipe drains…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The hydraulic conductivity of a homogeneous gravelly aquifer is 3 x 10-1 cm/sec. The hydraulic gradient (groundwater surface slope) of the phreatic (water table) aquifer is 0.01 and the aquifer's effective porosity is 0.25. Calculate the following two parameters and provide the answer to question b) in the space provided (numerical answer only, no units or any). Calculate the specific discharge that represents flow conditions of the aquifer in cm/sec. Also Calculate the approximate average velocity of a conservative solute dissolved in this aquifer, calculated to units of cm/sec (enter numerical answer without stating units).
Separate the baseflow from the stream flow hydrograph using the straight-line method. What is the baseflow? Calculate the direct runoff hydrograph (DRH) and plot it as an x-y scatter plot. Time (hr) Discharge (cfs) 0.0 60 0.5 54 1.0 50 1.5 90 2.0 137 2.5 176 3.0 200 3.5 198 4.0 140 4.5 97 5.0 60 5.5 40 6.0 35 6.5 32 7.0 29 7.5 24 8.0 22 8.5 20 9.0 20 9.5 19 10.0 19 10.5 18 11.0 18 11.5 18 12.0 17

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Determine the diameter of pipe drains that drain out 24 mishara of drainage area with drainage coefficient of 1.5 cm/day. The drain grade is 0.004. Manning's n=0.013. Use Chezy's Formula.