What is diversion headwork?
What is diversion headwork?
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.
What are the components of diversion headwork?
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:
How many components the diversion headwork is divided?
eight component parts
Explanation: The diversion head work is generally divided into eight component parts, namely weir, divide wall, fish ladder, pocket or approach ladder, scouring sluices, silt prevention devices, canal head regulator, and river training works. 2.
What do you understand by storage and diversion scheme describe in brief?
Storage dams are used to store water for extended lengths of time. The stored water then can be used for irrigation, livestock, municipal water supply, recreation, and hydroelectric power generation. Diversion dams are used to raise the water level in order to redirect the water to the designated location.
What is meant by headwork?
Definition of headwork : mental labor especially : clever thinking.
What is diversion work needed?
Diversion head works 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.
Why divide wall is provided?
Divide wall prevents formation of cross currents and thus avoids their erosive effect. For this purpose sometimes more than one divide walls may have to be provided. When undersluices are not worked, as in case during low water in winter, silt may get deposited behind the under sluices.
What is the function of divide wall in a diversion weir?
Functions of divide wall: It separates the floor of the scouring sluices from that of the weir proper which is at a higher level. It provides a silt pocket in front of the canal head regulator so that silt gets deposited in it and relatively clear water enters the canal.
What is diversion structure?
Diversion structures route runoff in excess of base flow to storage facilities during wet periods, for later use during dry periods. Flood diversion structures, such as dikes, are also useful methods for mitigating the adverse effect of torrential rains and at the same time capturing the excess water for later use.
What are diversion canals used for?
Diversion structures consist of ridges or channels that are used to temporarily divert water around or from an area that is under construction or is being stabilized. Specific applications include perimeter control, diversion away from disturbed slopes, and diversion of sediment-laden water to treatment facilities.
What is headwork in civil engineering?
A headwork raises the water level in the river. It regulates the intake of water into the canal. It also controls the entry of silt into the canal. A head work can also store water for small periods of time.
What is linked canal?
The Marala–Ravi Link Canal (MRL canal) is a canal in Pakistani Punjab that flows from the Marala Headworks on the Chenab River near Sialkot to the Ravi river. It was constructed in 1956 to transfer water from Chenab to Ravi as well as to irrigate about 60,000 hectares of land in the Sialkot and Gurjanwala districts.
What is diversion head works in irrigation?
Diversion head works in irrigation- Layout and functions of component. 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.
What is the function of diversion headworks in a canal?
Functions of Diversion Headworks It raises the water level in the river so that the command area can be increased. It regulates the intake of water into the canal. It controls the silt entry into the canal. It reduces fluctuations in the level of supply in the river. It stores water for tiding over small periods of short supplies.
What are the different types of diversion headwork?
A diversion headwork can further be sub-divided into two principal classes: Temporary spurs or bunds are those which are temporary and are constructed every year after floods, however, for important works, weirs or barrages are constructed since they are of permanent nature if properly designed.
What is the purpose of silt diversion headwork?
Diversion head-work may serve as silt regulator into the channel. Due to the obstruction, the velocity of the river decreases and silt settles at the bed. Clear water with permissible percentage of silt is allowed to flow through the regulator into the channel. To prevent the direct transfer of flood water into the channel.
