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

High strength friction grip bolts and normal bolts, High strength friction ...

High strength friction grip (HSFG) bolts vs. normal bolts HSFG bolts have the following benefits when compared with normal bolts: (i)  Performance of preloaded HSFG bolts u

Arches, what is arches ? what are the classification of arches

what is arches ? what are the classification of arches

Explain mild and high-yield steel, High-yield steel vs. mild steel as road ...

High-yield steel vs. mild steel as road reinforcement High yield steel is the preferred material for the reinforcement of concrete carriageway due to the subsequent reasons:

Force system, show the diagram for non coplanar non concurrent force system...

show the diagram for non coplanar non concurrent force system

Key meaning of excellence of bentonite slurry, Question What is key me...

Question What is key meaning of excellence of bentonite slurry in construction of diaphragm walls? Answer Quality of slurry plays a significant role in quality of di

Track structure on broad gauge, Q. What is the minimum prescribed track str...

Q. What is the minimum prescribed track structure for LWR / CWR on Broad Gauge? Ans.- 1. General - The minimum length of LWR depends upon - i. Range of temporary variati

Steel and timber structures, design a tension member subjected to a pull of...

design a tension member subjected to a pull of 300KN using a channel section. the length of a joint available is only 400mm.check the condition of using lug angle for end connecti

Why do we need to control air pollution, Why do we need to control air poll...

Why do we need to control air pollution? a. It causes harmful effects on human health,  Materials and property,  Plants and Animals, Visibility, Global climate and others b.

Lubrication of rail joint, Lubrication of rail joints is one of the importa...

Lubrication of rail joints is one of the important items of permanent way works incidental to systematic track maintenance, the lubrication of joints is done for the following purp

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