Q. In which direction, resultant force will shift by providing a top width for roadway and free board in elementary profile of a gravity dam, for full reservoir condition?
Solution:
- Elementary profile is a theoretical profile.
- Only external forces acting on elementary profile is water pressure.
- Internal force is self weight.
- The shape of elementary profile of a gravity dam is right angled triangle.
- For full reservoir condition resultant passes through outer one third point and for empty (only self weight) reservoir condition resultant passes through inner one third point.
- By providing a top width for roadway and free board in elementary profile of a gravity dam, for full reservoir condition the resultant force will shift towards heel of the dam.
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