A concrete pipe 750 mm in diameter is laid to a gradient of 1 in 200.The estimated value of Manning’s ?is 0.012m−1/3 s. Calculate the discharge when: (a)the pipe is full; (b)the depth is 90% of maximum. Explain why the answer in (b) exceeds th

A concrete pipe 750 mm in diameter is laid to a gradient of 1 in 200.The estimated value of Manning’s ?is 0.012m−1/3 s. Calculate the discharge when: (a)the pipe is full; (b)the depth is 90% of maximum. Explain why the answer in (b) exceeds th

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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Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.

Question

A concrete pipe 750 mm in diameter is laid to a gradient of 1 in
200.The estimated value of Manning’s ?is 0.012m−1/3
s.
Calculate the discharge when:
(a)the pipe is full;
(b)the depth is 90% of maximum.
Explain why the answer in (b) exceeds th

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