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 chezy manning equation, Explain Chezy Manning Equation v = 1.49...

Explain Chezy Manning Equation v = 1.49/n (R) 0.67 (S) 0.5     R = hydraulic radius (ft) = Area/ wetted perimeter, R = D/4 for circular channels full and one-half full

Explain the influence line-moment, Influence line-moment 1.  Replace th...

Influence line-moment 1.  Replace the point of interest with an imaginary hinge. 2.  Rotate the beam one unit rotation by apply equal but opposite moments to each of the two

Forces reactions at that point, Mad/Sir What would be the Horizontal and ve...

Mad/Sir What would be the Horizontal and vertical component from this acting force see diagram

Load transmission, • The transmission of load through a structure can be co...

• The transmission of load through a structure can be complex but in any particular case            - The applied load can usually be classified into 4 types                •

Keywords related to water transportation, Keywords related to water transpo...

Keywords related to water transportation: Oceanic Shipping: Shipping taking place in the oceans. Coastal Shipping: Shipping taking place along the coast line. Inlan

Define surface water treatment rule (swtr), Define Surface Water Treatment ...

Define Surface Water Treatment Rule (SWTR) SWTR sets forth primary drinking water regulations requiring treatment of surface water supplies or groundwater supplies under the di

Abrassion test., abrasion test is conducted to find what

abrasion test is conducted to find what

Hydrographic data for design of bridge, Q.What Hydrographic data required f...

Q.What Hydrographic data required for Design of bridge? (i) Design discharge for bridge waterway and foundation with corresponding high flood levels. Frequency curve for annual

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