A masonry dam (sp.gr. = 2.4) of trapezoidal cross-section is 20 m high. It has a thickness of 2 m at the top and 14 m at the bottomas shown in the figure.Coef. of friction under the foundation is 0.80 and assuming there is hydrostatic upliftthat varies linearly from one-half the hydrostatic head at the upstream edgeof the dam to zero at the downstream edge.Determine
Extracted text: 2. A masonry dam (sp.gr. = 2.4) of trapezoidal cross-section is 20 m high. It has a thickness of 2 m at the top and 14 m at the bottom as shown in the figure. Coef. of friction under the foundation is 0.80 and assuming there is hydrostatic uplift that varies linearly from one-half the hydrostatic head at the upstream edge of the dam to zero at the downstream edge. Determine a) all forces acting on the dam; b) the intersection of the resultant pressure with the base; c) the intensity of pressure at the heel and at the toe d) the factor of safety against sliding and overturning; e) if the dam is safe. 20m 10 m 2m 2 m