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

Construction measurment, calculating quantity of excavation, formwork, conc...

calculating quantity of excavation, formwork, concrete

#titl, Two readings ie 1.64m and 0.73m were taken during leveling procedure...

Two readings ie 1.64m and 0.73m were taken during leveling procedure to define the slope of a centerline of a bridge at points A and B. If distance AB=50 m, find the slope of line

Role of each mode of transport, Role of Each Mode of Transport: Each ...

Role of Each Mode of Transport: Each mode of transport has its own role to play in a country. The role of each is as under: Roads : Road transport carries 80 per cent of

Building material, what is grillege foundation and where are use

what is grillege foundation and where are use

Function of prime coat in bituminous pavement, Q. Function of prime coat in...

Q. Function of prime coat in bituminous pavement? The main function of prime coat in bituminous pavement is to protect the subgrade from weathering andmoisture. Because the pre

Cement bag question., composition of cement in cover bag should be written ...

composition of cement in cover bag should be written or not/ If written which country uses ?please specify the name ?

Define ways of providing the anti slip device - by bolting, Define Ways of ...

Define Ways of providing the anti slip device - By Bolting? The elastomeric bearing can be vulcanised with a stainless steel outer plate. The stainless steel plate is provided

Discuss about the fibre reinforced concrete, Discuss about the fibre reinfo...

Discuss about the fibre reinforced concrete Tensile strength of concrete may be improved by using a higher grade of concrete or by using special concretes such as fibre reinfor

Structure, what is the cutelment length

what is the cutelment length

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