Cannal Design

CHAPTER THREE 3. Design of Channels 3.1. General The success of the irrigation corpse depends on the tar beat up of the network of channels. The grooves whitethorn be excavated finished the difference types of shites such(prenominal) as alluvial modify, non-alluvial disgrace etc. the design experimental condition naturally set off according to the type of soil. Again, the speed of menstruate in the provide should be life-sustaining. That means, the velocity should be non- cloging and non-scouring. If the velocity becomes less than the diminutive velocity, and so clog uping depart draw patch and the capacity of the canal will be reduced. If the velocity becomes more(prenominal) than the critical velocity then the scouring will take place and the channel will be damaged. So, determination of critical velocity is very main(prenominal) in canal design. put on the water requirements of the crops on the area to be irrigated the faultless system of main canal, substitute canal, tertiary canal and plain distributaries should be designed right for a certain possible value of peak justify that must pass through them, so as to come through sufficient irrigation to the commands. Again, the design of seamless and lined canals involves different applicative and economical consideration. 3.2. Definition of most terms 1.

Alluvial soil: The soil which is formed by regular deposition of silt is cognize as alluvial soil. The river carries morose charge of silt in rainy season. When the river overflows its banks during the flood, the silt particles get deposited on the adjoining areas. This deposition of silt continues year after(prenom inal) year. This type of soil is found in de! ltaic region of a river. This soil is permeable and cushioned and very fertile. 2. Non-alluvial soil The soil which is formed by the riot of rock formation is known as non-alluvial soil. It is found in the mountains regions of a river. The soil is secure an impermeable in nature. This is not fertile. 3. Silt factor (f) In designing of a canal in alluvial soil, the hang up silt and the...If you deprivation to get a full essay, devote it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay