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

Arches and lintels, classification of arches based on their shape are?

classification of arches based on their shape are?

How the water table may rise to the ground surface, State the size of a squ...

State the size of a square footing at the ground level to transmit a load of 900 kN in sand weighing 18 kN/m 3 and having an angle of shearing resistance of 36° (N  = 46, Nq = 43)

Determine the allowable pressue, The data profile as shown in Figure is obt...

The data profile as shown in Figure is obtained. A best average of N values gave N 10 = 21, column loads including dead and live loads ranged from 500 kN to 950 kN. Determine the

Matrix method of analysis, Ask question #Explalin a joint frame by stiffne...

Ask question #Explalin a joint frame by stiffness method

Contours, how can you draw contours of a non square grid?

how can you draw contours of a non square grid?

Chemical deterioration - underwater inspection of bridge, Define Chemical D...

Define Chemical Deterioration - Underwater inspection of Bridge? Chemical deterioration may occur in concrete, which has not been properly compacted, or through environmental p

Cost estimating, I would like to know if anyone can help me with my const e...

I would like to know if anyone can help me with my const estimating project

Define the arrow diagramming method, Define the Arrow Diagramming Method ...

Define the Arrow Diagramming Method Activity-on-Arrow (Branch) with nodes as dependencies Uses finish-to-start precedence only. The solution method for an activity on

Drainage of embankment slopes, Drainage of Embankment Slopes: Slopes ...

Drainage of Embankment Slopes: Slopes of high embankments get eroded by rain water. Deep rain cuts are formed, which endanger the pavement. In such cases, it is customary to

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