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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