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

Define the vapor pressure, Define the Vapor Pressure The partial pressu...

Define the Vapor Pressure The partial pressure exerted at the surface of a liquid at the liquid/vapor interface. The liquid molecules are released into the vapor phase when the

Functions of bedding below storm water drains, Question What are main funct...

Question What are main functions of bedding below storm water drains ? Answer Bedding that is normally made of granular resources or concrete serves four main functions as optio

Column estimat, how maney point in columan parking estimate

how maney point in columan parking estimate

Factors that affect design facility of screw pumps, Question While sele...

Question While select screw pumps in polder scheme projects , what are factors that affect design facility of screw pumps? Answer Commonly used angles of inclination

How double drainage occur, The loading period for a building extended from ...

The loading period for a building extended from Feb., 1957 to Feb., 1959. In Feb., 1962, the average measured settlement was found to be 117 mm. The ultimate settlement was expecte

Classification of timber based on durability, Classification Based on Durab...

Classification Based on Durability: Durability tests are conducted by the forest research establishment. They cover test specimen of size 600 × 50 × 50 mm in the ground to hal

Asphalt mix design – durability and stability, Q. Asphalt mix design - dura...

Q. Asphalt mix design - durability vs. stability? The main aim of asphalt mix design is to achieve a mix with economical blending of aggregates with asphalt to achieve the foll

Airport management, Airport Management: Airlines (a)        Adequ...

Airport Management: Airlines (a)        Adequate space for each airline for ticketting, check-in and baggage handling, and (b)       Adequate space for airline staff.

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