FM - Dams 1 (Resultant within the Middle Third)

Problem: A concrete gravity dam has a trapezoidal cross section with a base width of 9m, top width of 4m, and height of 9m. The upstream face is inclined, while the downstream face is vertical. Water is retained along the inclined upstream face up to the full height of the dam. Unit weight of concrete is 24kN/m3.

* Determine the distance of the vertical reaction from the toe.
* What is the pressure at the heel?
* What is the pressure at the toe?

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