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

Grades of concrete, mixing ratio of different type of ready mix concrete.(R...

mixing ratio of different type of ready mix concrete.(RMC)

Linear programming, what are the advantages of linear programming?

what are the advantages of linear programming?

Design for the limit state of collapse in bending, Design for the limit st...

Design for the limit state of  collapse in bending Following assumptions are taken in the design for the limit state of  collapse in bending or flexure. Plane sections norm

Geodesy, what is the difference between geodesy and plane survey

what is the difference between geodesy and plane survey

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

Determine about the post-tensioned concrete, Determine about the post-tensi...

Determine about the post-tensioned concrete The transfer stage may take place after a long time from the casting of concrete, in the case of post-tensioned,members, enabling th

Residual stresses in steel after welding, Q. Residual stresses in steel aft...

Q. Residual stresses in steel after welding? Considerable residual stresses are persuaded in connecting steel members after welding operation. Local temperature of steel where

GRILLAGE FOUNDATION, WHY ONLY I-SECTIONS ARE USED IN CONSTRUCTING GRILLAGE ...

WHY ONLY I-SECTIONS ARE USED IN CONSTRUCTING GRILLAGE FOUNDATION

Concrete mix design, Concrete Mix Design: Concrete mix design is done...

Concrete Mix Design: Concrete mix design is done in a laboratory to achieve the desired strength and workability. The mix design is done to achieve strength slightly higher t

Calculate the elastic stretch of the steel wire rope, A 70-ft long, ¾" diam...

A 70-ft long, ¾" diameter, 6 x 7 FC wire rope is resisting a tension force of 12-kips.  The elastic stretch of the steel wire rope given the following properties is most nearly: E

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