The Keswick dam in Problem 2.94 is made of concrete and has a specific weight of \(150 \mathrm{lb} / \mathrm{ft}^{3}\). The coefficient of friction \(\mu\) between the base of the dam and the foundation is 0.65. Is the dam likely to slide downstream? Consider a unit length of the dam ( \(b=1 \mathrm{ft}\) ).

Problem 2.94

Figure P2.94 is a representation of the Keswick gravity dam in California. Find the magnitudes and locations of the hydrostatic forces acting on the headwater vertical wall of the dam and on the tailwater inclined wall of the dam. Note that the slope given is the ratio of the run to the rise. Consider a unit length of the dam ( \(b=1 \mathrm{ft}\) ).

Figure P2.94

Transcribed Image Text:

21.5' Headwater 100' El. 595.00 El. 565.40 Slope -0.7:1 El. 491.00 Tailwater 30'