10 In a channel of rectangular cross section with a slope of 1 in 1000, the discharge is to be 1,4 m³/s when the channel is running full. Its depth is half as its breadth. If the channel is roughly excavated, the coefficient of discharge C is 27 in SI units, and the Chezy formula is V = C √(Rs). If the bottom and side slopes are finished smoothly, C = 81 (R = hydraulic radius, s = slope) Assuming the cost of excavation /m³ is twice the cost of smooth finishing /m² Compare the costs of the two types of channels.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
10
In a channel of rectangular cross section with a slope of 1 in 1000, the
discharge is to be 1,4 m³/s when the channel is running full. Its depth is half
as its breadth. If the channel is roughly excavated, the coefficient of
discharge C is 27 in SI units, and the Chezy formula is V = C √(Rs). If the
bottom and side slopes are finished smoothly, C = 81 (R = hydraulic radius,
s = slope)
Assuming the cost of excavation /m³ is twice the cost of smooth finishing /m²
Compare the costs of the two types of channels.
Transcribed Image Text:10 In a channel of rectangular cross section with a slope of 1 in 1000, the discharge is to be 1,4 m³/s when the channel is running full. Its depth is half as its breadth. If the channel is roughly excavated, the coefficient of discharge C is 27 in SI units, and the Chezy formula is V = C √(Rs). If the bottom and side slopes are finished smoothly, C = 81 (R = hydraulic radius, s = slope) Assuming the cost of excavation /m³ is twice the cost of smooth finishing /m² Compare the costs of the two types of channels.
Expert Solution
steps

Step by step

Solved in 6 steps with 5 images

Blurred answer
Knowledge Booster
Highway drainage
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Structural Analysis
Structural Analysis
Civil Engineering
ISBN:
9781337630931
Author:
KASSIMALI, Aslam.
Publisher:
Cengage,
Structural Analysis (10th Edition)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Sustainable Energy
Sustainable Energy
Civil Engineering
ISBN:
9781337551663
Author:
DUNLAP, Richard A.
Publisher:
Cengage,
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning