A 60 cm diameter culvert has been designed to convey a discharge of 500 L/s of storm- water under a residential road. The culvert is 50 m long and has a slope of 2.3%. From a hydraulic analysis, the headwater depth was obtained as 2.5 m. You are required to determine: 1.1. the head required to convey the discharge through the culvert at full flow conditions if a corrugated steel pipe is used with a Manning's roughness coefficient of n = 0.012 with an inlet headwall of square type. 1.2. What is the corresponding downstream flow depth in 1.1 above?

A 60 cm diameter culvert has been designed to convey a discharge of 500 L/s of storm- water under a residential road. The culvert is 50 m long and has a slope of 2.3%. From a hydraulic analysis, the headwater depth was obtained as 2.5 m. You are required to determine: 1.1. the head required to convey the discharge through the culvert at full flow conditions if a corrugated steel pipe is used with a Manning's roughness coefficient of n = 0.012 with an inlet headwall of square type. 1.2. What is the corresponding downstream flow depth in 1.1 above?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

. Refer to the following channel cross section. Normal depth is 3.0 feet. (a) What is the cross-sectional area of flow? (b) What is the wetted perimeter? (c) What is the hydraulic radius? 3.0' 1.5' 1.5' 8) noio222013 (6) -5.0'- JadW (d) O Cengage Learning 2014
In a circular channel 2.5meters in diameter, flowing below half full, the water surface width is 2.415meter in length. a.Compute the hydraulic radius. b.The channel is laid on a grade of 24.146meters per mile; compute its discharge using Manning’s formula withn= 0.025. c.For flow as in (b), compute the C value in the Chezy formula. d.Using C in (c), and for flow as in (b), compute the value of Kutter’s nin the Kutter’s C formula. Simplify your solution, no solution by calculator or shift solve. e.Compute the maximum velocity that may occur for the given circular channel using as in (d) and Manning’s formula.
1. Design a pipe culvert using the following data. Also, draw the longitudinal section of the culvert. Discharge in the stream: 4 m/s Road top level: 106 m Road bottom level: 101.5 m Road width: 7.5 m with 1 m wide shoulders Density of the soil at site: 18 kN/m3 Loading: IRC Class A C. = 1.8
Q3:calculate the head water at entrance of box culvert (2x2 m & 30 M length) shown in Fig.2 for discharge (Q=6m'/sec) Use the following data: -head loss coefficient at entrance ( Ke=0.5 )& for down stream (Kd-1 ) -Manning's coefficient n=0.013. Ke=0.5 HW S=0.3% 2.2m Kd=1 0.0 Fig2 L=30m
A circular culvert 164 ft long extends between two reservoirs as shown. The difference in water surface elevation (?h) between the two reservoirs is 6.6 ft, and both the culvert entrance and exit are fully submerged. The culvert has a diameter of 8.0 ft. Assume that the entrance loss coefficient is 0.5 and the exit loss coefficient is 1.0. Determine the discharge rate in the culvert using: (1) Darcy- Weisbach equation (f = 0.02) (2) Hazen-Williams formula (Ch = 100) L = 164 ft
(b) If corrugated steel pipe is used with a Manning's roughness coefficient n=0.024 with an inlet headwall of square edge design. 1.2 What is the corresponding headwater depth in 1.1 (a) and (b) above?
Design a pipe culvert depending on the following data: Q=2 m³/sec; length of culvert (L)= 40 m; k₁= 0.25; k2= 0.5; n= 0.015; H₁= 0.1 m; and upstream water depth=1.5 m.
A 450 mm diameter culvert has been designed to convey a discharge of Q = 0.55 m3/s of storm-water under a residential road. The culvert is 37.5 m long and has a slope of 1.3%. The downstream flow depth was obtained as 0.35 m from a hydraulic analysis. You are required to determine:1.1 the head required to convey the discharge through the culvert at full flow conditions;(a) If concrete pipe is used with a Manning’s roughness coefficient of n = 0.0155 with an inlet headwall of socket type. (b) If corrugated steel pipe is used with a Manning’s roughness coefficient n=0.024 with an inlet headwall of square edge design. 1.2 What is the corresponding headwater depth in 1.1 (a) and (b) above?
Q#1(a) Water flows over a rectangular weir 3m long. The height of water surface over the weir is 1m. Calculate discharge over the weir by: Simple formula Francis’ formula Take Cd=0.62 and velocity of approach=2m/sec. Find the difference between the two discharges. (b) What is meant by “Hydraulic coefficient”? Explain different types of hydraulic coefficients. (c) What is a “Cippoletti weir” ?Prove that the side slope of a Cippoletti weir is 1:4.
Problem 3: Culvert Roughness A culvert transmits 0.45 m³/s of water from the pond at left (surface elevation 123.0 m) to the pond at right (surface elevation 122.0 m). L= 25 m and D = 50 cm. The flow is steady and uniform, and the pipe is completely full. Part A Use Bernoulli's equation to calculate the friction head loss. [m] Part B What is the average velocity? [m/s] Part C Calculate Darcy-Weisbach's friction factor 2. Part D Calculate Hazen-Williams's roughness coefficient Chw. Part E Calculate Manning's n with units.
Q. The hydraulic radius (m) for a circular pipe of diameter (D) behaving as open channel is given by ?
In a circular channel 3.0 meters in diameter, flowing over half full, the water surface width is 1.268 meter in length. a. Compute the hydraulic radius. b. The channel is laid on a grade of 16.10 meters per mile; compute its discharge using Manning’s formula with n = 0.030. c. For flow as in (b), compute the C value in the Chezy formula. d. Using C in (c), and for flow as in (b), compute the value of Kutter’s n in the Kutter’s C formula. Simplify your solution, no solution by calculator or shift solve. e. Compute the maximum velocity that may occur for the given circular channel using n as in (d) and Manning’s formula