Evlaute width and depth for stable alluvial canals, Civil Engineering

Assignment Help:

Q. Evlaute width and depth for stable alluvial canals?

Lacey originally evolved width and depth formulae for stable alluvial canals. These were the following. 

P = 4.836 Q1/2

R = 0.473 (Q/f)1/3

wherein P is wetted perimeter in m, Q is discharge in m3/s, R is hydraulic mean radius in m and f is the silt factor which is given as 1.76 m1/2, m being weighted mean diameter of bed material in mm. On the basis of data of a few rivers, Lacey showed that his P:Q relationship is valid not only for canals but also for alluvial rivers. Since river sections are much wider than canals, P and R can be replaced by W and D, namely width and depth respectively.


Related Discussions:- Evlaute width and depth for stable alluvial canals

Explain the cross sectional area of flow, Cross-sectional area of flow (ft ...

Cross-sectional area of flow (ft 2 ) (A) For rectangular channels = (w)(d). For trapezoidal channels, divide the flow area into two side triangles and one center rectangle, so

Water sources and requirements, Water Sources and Requirements: In thi...

Water Sources and Requirements: In this part, we have discussed: (a) Basic concepts in planning of water supply schemes. (b) Various types of water requirement. (c) S

Advantages and disadvantages of water transport, Advantages and Disadvantag...

Advantages and Disadvantages of Water Transport: The following are the advantages of water transport: (a)        Since the vessels travel on water, no investment is needed

Energy absorbed in heeling during vessel berthing, Q. Energy absorbed in he...

Q. Energy absorbed in heeling during vessel berthing? When a vessel   berths on a fender system at a pier, point of contact of berthing ship can be below or above the centre of

Cleanliness of surface - limitations of ultrasonic system, Define Cleanline...

Define Cleanliness of Surface - Limitations of Ultrasonic System? Sound energy transmission is greatly affected by marine growth on the surface of the concrete element. Ultraso

Explain information processing and perception, Explain Information Processi...

Explain Information Processing and Perception - Driver Performance The time required to respond successfully to any driving situation, such as an emergency, involves four stage

Earth dam, earth dam design and its force

earth dam design and its force

Design the transverse reinforcement, Figures (a) and (b) respectively give ...

Figures (a) and (b) respectively give details of a simply-supported bridge beam and its (idealised) cross-section. In addition to the dead load of 25 kN/m (including self weight),

Trigo, a pilot entering a bay on course

a pilot entering a bay on course

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd