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

Routing maintenance and major maintenance, What is the difference between r...

What is the difference between routing maintenance and major maintenance in school facilities? Ans) The routine maintenance is the minor and consistent repairs that are engaged

Tremie pipes are normally used with aid of hoppers, Question For underw...

Question For underwater concreting, tremie pipes are normally used with aid of hoppers. From time to time tubes are put in inside the hoppers and with reasons? Answer

Determine about the long-term deflections, Determine about the long-term de...

Determine about the long-term deflections For long-term deflections, the total long-term deflection due to the prestressing force, dead load and any sustained imposed load may

Classification of timber based on availability:, Classification Based on Av...

Classification Based on Availability: Forest departments categorized timbers based on the availability as X=Most common. 1415 m 3 or more per year Y=Common. 355 m 3 to 1415

Differentiate between short column and slender column, Differentiate betwee...

Differentiate between Short Column and Slender Column Short Column It is a column of  rectangular section, the effective length of which does not exceed 12 times of  its lea

Importance of geotextiles and sand in reclamation works, Question What ...

Question What is main importance of geotextiles and sand in reclamation works? Answer For geotextiles used in recovery, they serve mainly subsequent two purposes

Unreinforced concrete pavement function without mesh, Question How can ...

Question How can it would be able for unreinforced concrete pavement function without mesh reinforcement ? Answer Concrete carriageway, it is usually classified into t

Can you explain permeable spurs, Q. Can you explain Permeable Spurs? A ...

Q. Can you explain Permeable Spurs? A permeable spur may be constructed by driving two or more rows of bally piles with sufficient penetration below riverbed level to provide a

Base of concrete retaining walls, Q. Granular fill or rock fill essential a...

Q. Granular fill or rock fill essential at the base of concrete retaining walls? It isn't uncommon that rock fill layers and granular fill layers are placed beneath the bottom

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