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

Castigliano theoremn, what is vertical deflection of a beam, a conservative...

what is vertical deflection of a beam, a conservative structure and of what use is castigliano theoremn

Underwater problems in bridge construction, Q. Underwater problems in bridg...

Q. Underwater problems in bridge construction? The major bridge construction materials are steel and concrete. In the past, stone and brick masonry, with lime mortar as binding

Scales and sludges, Discussscales and sludges. Writea note on internal trea...

Discussscales and sludges. Writea note on internal treatment of water

Failure analysis in designing of a structure, Modes of failure • For sa...

Modes of failure • For safe design, a knowledge of the possible modes of failure is also necessary, e.g. failure of the structure could occur due to - Tensile fracture due t

Pcc, Specific Gravity & Water Absorption of Fine Aggregate

Specific Gravity & Water Absorption of Fine Aggregate

Physical deterioration - underwater inspection of bridges, Define Physical ...

Define Physical deterioration - underwater inspection of bridges Typical defects include: -   Scaling -   Cracking -   Spalling -   Disintegration -   Abrasion

Concrete mix proportions, Concrete Mix Proportions Concrete mix proport...

Concrete Mix Proportions Concrete mix proportions should be chosen in such a way that concrete of adequate workability is obtained. Workability of concrete mix should be such t

Strength - aggregate impact test, Strength: The strength of aggregate...

Strength: The strength of aggregates is determined from one of the three tests : Aggregate Impact Test In which the aggregates in a mould are subjected to impact caus

Premix, how we can do good premix

how we can do good premix

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