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

Common building stones, Common Building Stones Here describe some commo...

Common Building Stones Here describe some commonly used stones are following: a. Granite       b. Basalt and trap c. Slate          d. Sand stone   e. Marble        f.

Verify the earth pressure at rest, A retaining wall, 6 m high, retains dry ...

A retaining wall, 6 m high, retains dry sand with an angle of friction of 30° and unit weight of 16.2 kN/m 3 . Verify the earth pressure at rest. If the water table rises to the to

Lime, what is stone lime shall lime and kankar lime

what is stone lime shall lime and kankar lime

Rectilinear motion, A train starts from rest as A and accelerates at 1,7m/...

A train starts from rest as A and accelerates at 1,7m/s2 to full speed at which it maintains until the brakes gives it a deceleration of 1,7m/s2 to stop at B. AB=1,6km. determine

Steel truss, size of steel truss for span of 5m

size of steel truss for span of 5m

Define the meaning of circular prestressing, Define the meaning of circular...

Define the meaning of circular prestressing In circular prestressing, tendon wires are wrapped under tension over the concrete pipes which are pre-cast. The tension in the ten

Torque, A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m dis...

A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m distant from either end. The reactive torque at the nearer end will be?

Reasons of ground heaving during pipe-jacking, Reasons of ground heaving du...

Reasons of ground heaving during pipe-jacking It is commonly recognized that ground settlement is one of the significant concern in pipe jacking operation. Though engineer mus

Truss, Wind Force acting on truss

Wind Force acting on truss

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