Divide wall

DIVIDE WALL It is also called groyne, or groyne wall. It is an embankment constructed in the river, U/S of the weir. Its axis is kept at right angles to the axis of the weir. The embankment is protected from all the sides with the help of stone or concrete blocks. The divide wall separates weir from undersluices. It extends a little U/ S of canal regulator and on D/S end upto loose protection of the under sluices. It may be made of concrete or masonry, with top width of 1.5 m to 3 m. This wall should be designed for following conditions. (i) Silt pressure upto full tank level on the face opposite to the face lying towards the head regulator and minimum possible or no water on the face lying towards the head regulator. (ii) During high floods the water level behind the weir should be assumed about…

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Layout of a diversion head work
LAYOUT OF A DIVERSION HEAD WORKS

Layout of a diversion head work

LAYOUT OF A DIVERSION HEAD WORKS A typical layout of a diversion head work is shown in Fig. 15.1. Following is the list of component parts of a diversion headworks. The design and description details of all these components given one by one in subsequent articles. Weir or barrage. Scouring sluices or under sluices. Divide wall. Fish ladder. Log chutes. Canal head regulator. River training works. Silt control devices   Out of all these component parts river training works include lot of other elements also and hence have been discussed in a separate chapter later on. Before we take up description and design of all these component parts of a diversion headworks, let us first of all discuss location of head works.  

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