What are the component parts of a diversion head work?

Components of Diversion Head Works | Irrigation | Agriculture

  • Component # 1. Weirs:
  • Component # 3. Divide Wall:
  • Component # 4. Fish Ladder:
  • Component # 5. Log Chute:
  • Component # 6. Main Canal Head Regulator:
  • Component # 7. Regulation of Head Regulator:
  • Component # 8. Silt Control at Head Regulator:

What are the different factors to be considered in site selection for a storage diversion works?

Site Selection For Diversion Headwork

  • The river section at the site should be narrow and well-defined.
  • The elevation of the site should be higher than the area to be irrigated for gravity flow.
  • The site should be such that the wire and barrage can be aligned at right angles to the direction of flow in the river.

Which is the main function of diversion head work of a canal?

Detailed Solution. Diversion head works like Weir or barrage is constructed across a perennial river to raise water level and to divert the water to canal, is known as diversion head work Flow of water in the canal is controlled by canal head regulator.

What are the functions of an under sluice and silt excluder in a diversion headwork?

Answer: Silt excluder is a structure constructed in the bed of a river, u/s of a head regulator to attack the river bed water and divert the same into the d/s of the river. Its main function is to prevent the entry of silt into the canal. A typical silt excluder is shown in the figure.

What are the types of diversion head works?

ADVERTISEMENTS: 2. Types of Diversion Head Works:

  • Temporary bunds or spurs.
  • Permanent weirs and barrages. Temporary bunds or spurs are temporary works, which have to be constructed every year after floods. These bunds cannot sustain the assault of floods and get washed away.
  • Layout of a Diversion Head Works:

What is diversion head work explain with layout diagram?

Diversion headworks is a structure constructed across a river for the purpose of raising the water level in the river so that it can be diverted into the off taking canals. It is also known as canal headworks and performs the following functions.

Which stage is best of head works?

Trough stage: In this stage, the cross-section of the river is made up of alluvial sand and silt. The bed slope and velocity are small. In this stage, seepage losses are less that’s why the most suitable location of canal headworks is in this stage.

Which type of canal is most useful in hilly areas?

A canal aligned roughly parallel to the contours of the area is called a contour canal. This type of canal can be seen in hilly regions. Since it is parallel to the contour line, the ground on one side of the canal is higher and hence irrigation is possible only on the other side of the canal.

How many types of canal irrigation works are there?

Explanation: There are five types of canal irrigation works, namely canal falls, canal regulators, canal escapes, metering flumes, and canal outlets and modules.

What is diversion head works?

Diversion headworks is a structure constructed across a river for the purpose of raising the water level in the river so that it can be diverted into the off taking canals. It is also known as canal headworks and performs the following functions. It raises the water level on upstream side.

Which of the following is diversion head work?

What are the different types of canal head works?

Canal Headworks are classified to: 1. Diversion Headworks: A weir or a barrage is constructed across a river to raise water level and to divert water to a canal is known as a diversion headwork. 2….

  • Hydraulic Failure.
  • Seepage Failure.
  • Structural Failure.

What are the components of diversion headworks 15?

Components of Diversion Headworks 15. Components of Diversion Headworks • The components of diversion headworks are: • Weir or barrage • Canal head regulator • Divide Wall • Fish Ladder • Scouring Sluices Under sluices • Silt excluder • Silt ejector. • Marginal embankment or dikes • Guide bank • Silt pocket or trap.

How does the divide wall in diversion head work work?

The divide wall separates weir from under sluices. It extends a little U/ S of canal regulator and on D/S end upto loose protection of the under sluices.

What was the purpose of the diversion works?

3. Diversion Head-Works • The works which are constructed at the head of the canal in order to divert the river water toward the canal, so as to ensure a regulated continuous supply mostly silt free water with certain minimum head into the canal, are known as diversion headworks.

Where does the silt go in diversion headworks?

The suspended silt goes on the depositing in front of the canal head regulator. When the silt deposition becomes appreciable the gates are opened and the deposited silt is loosened with an agitator mounting on a boat. The muddy water flows towards the downstream side through the scouring sluices.

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