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When the gated sluices are provided through the body of the dam spillway then the ogee spillway structure shall normally be of Corbel type.

When the gated sluices are provided through the body of the dam spillway then the ogee spillway structure shall normally be of Corbel type. Correct Answer False

The extra concrete is required for thickening of the section at the d/s end which can be saved by shifting the curve of the nappe in a backward direction until it becomes tangential to the d/s face. It can be affected by providing a corbel on u/s face.

Related Questions

An ogee spillway of a concrete gravity dam having FRL of 328 m and MWL of 340 m is provided with vertical gates between piers erected on the spillway. The effective length of the spillway is 60 m. The discharge through the spillway when gates are opened up to the actual reservoir level of 331.0 m will be_____________
What is the highest elevation of water level that can be maintained in the reservoir without any spillway discharge either with gated or non-gated spillway?
Statement (I): The ogee spillway is a control weir having an S-shaped crest profile which provides a high discharge coefficient without causing cavitations. Statement (II): The crest profile of ogee spillway conforms to the lower nappe of flow over a ventilated sharp-crested weir and ensures a constant discharge coefficient for all heads.
The discharge passing over an ogee spillway is given by (where, L is effective length of spillway crest and H is the total head over the spillway crest including velocity head.)
Consider the following statement
1. Gated communities has drawn a barrier between resident and other community.
2. Gated communities create the gap between low level income groups.
3. Gated communities are best suited for the people searching high quality life style.
Which of the following statements given is / are correct?
Consider the following statements in respect of dams: 1. In a gravity dam, a grout curtain is provided near the toe to reduce the exit gradient. 2. A drainage gallery with its drainage pipe system provided in a gravity dam reduces the uplift pressure at all levels below the upstream water level. 3. An earthquake acceleration of 0.1 g acting vertically downward causes a decrease of 10% in the limit weight of concrete and of water in a gravity dam. 4. The Tehri dam is a gravity dam. Which of the above statements are correct?
A dam reservoir which is not provided with gate controls on its spillway and other sluices is called ________________
Arrange the following stages in a sequence, such that they result in an ogee curve between two parallel lines AB and CD, such that they are the tangents to the arc. m) Join the adjacent ends B and C with a straight line. n) Divide the line BC into four parts using the points P1, P2, P3. o) Draw lines such that they pass through the points P1, P2, P3, and are perpendicular to the line BC. p) Draw the perpendicular lines through the points B and C such that they cut the lines passing through P1, P3 respectively at E and F. q) With the center E draw an arc BP2 and with center F draw an arc P2C, thus arc BP2C is required ogee curve.
The suction pressure on an ogee spillway is caused when the head on the spillway is:
The W.E.S downstream profile of an ogee spillway can be represented by an equation: Xn = K Hd n-1. Y Where x and y are the coordinates of the points on the crest profile and K and n for a vertical upstream spillway would respectively be___________________