rectangular gravity dam has a height 5 m. It retains 3 m deep of water. Calculate the minimum width of the concrete dam that is necessary to prevent the dam from sliding. The specific gravity of the concrete is 2.4 and the coefficient of friction
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A rectangular gravity dam has a height 5 m. It retains 3 m
deep of water. Calculate the minimum width of the concrete dam
that is necessary to prevent the dam from sliding. The specific
gravity of the concrete is 2.4 and the coefficient of friction
between the base of the dam and the foundation is 0.50. Use factor
of safety against sliding of 1.5.
a. 3.214 m b. 2.345 m
c. 1.125 m d. 1.254 m
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- A trapezoidal dam having a top width of 0.60m and a bottom width of 1.2m is 1.8m high. The depth of water on the vertical side of the dam is 2.4m. Unit wt. of concrete is 23.5 kN/m3. Neglecting hydrostatic uplift. Determine the total horizontal hydrostatic force acting on the dam, the factor of safety against overturning and the factor of safety against sliding if coefficient of friction between the dam and the soil is 0.80.A rectangular gravity dam has a height 5 m. It retains 3 m deep of water. Calculate the minimum width of the concrete dam that is necessary to prevent the dam from the sliding. The specific gravity of the concrete is 2.4 and the coefficient of friction between the base of the dam and the foundation is 0.50. Use factor of safety against sliding of 1.5.A concrete gravity dam has the following data: Maximum water level = 300.00 m Bed level = 220.00 m R.L top of dam = 304.00 m %3D The d/s slope of 0.67:1 starts at RL of 295.00 m U/s face is vertical. Center line of the drainage gallery = 8.0 m from u/s face. Consider only weight of dam, water pressure and uplift pressure. Calculate only the normal stresses at the toe and heel of the dam, assuming 100% uplift pressure at the h eel and 50% at the gallery and zero at the toe.
- A trapezoidal concrete dam is 20m high. The upstream face is vertical with water is flushed with the top, which is 3m wide and the bottom width (base) is 14.52m. The coefficient of friction between the base of the dam and the foundation is 0.60. If the specific gravity of concrete dam is 2.40, find the factor of safety against sliding, The pressure intensity at the heel and toe in KPa5. What is the factor of safety against overturning for the triangular dam? Determine the pressure distribution at the base of the dam. Neglect hydrostatic uplift. Use unit weight of concrete 24kN/m³.A concrete dam is triangular in cross section and (30+0.314)m high from the horizontal base. If water reaches a depth of (27+0.314)m on the vertical face, what is the minimum length of the base of the dam such that the resultant will intersect the base within the middle third? What minimum coefficient of friction is required to prevent sliding ? Determine the pressure distribution along the base. If the uplift pressure varies from half full hydrostatic at the heel to zero at the toe.
- A concrete dam retaining water is shown. If the specific weight of the concrete is 23.54 kN/m3, find the maximum pressure on the base. Assume there is no hydrostatic uplift and that the coefficient of friction between dam and foundation soil is 0.48. Y = 5.6 m B = 3.2 m W = 1.6 h = 4.8A concrete gravity dam with a trapezoidal section is holding water as shown in the figure. A distance of 15 meters from the toe, a drain is located. The drain has a pressure due to uplift of zero and increasing uniformly to full hydrostatic at the heel. Upstream face 1H:5V, while downstream face is inclined 1H:2V. Which of the ff nearly gives the maximum foundation pressure on the base of the dam in kilopascal ? Assume 23.54 kN/m3 for the unit weight of concrete. a. 3114 b. 1095 c. 4115 d. 964 e. 680A trapezoidal dam has width at the top of 2m and width at the bottom is 14m. The upstream face is vertical and the total height of the dam is 22m. The depth of the water on the upstream face of the dam is 20m. If the coefficient of friction between the dam and the foundation is 0.88, using unit weight of concrete equal to 23.5 kN/cu.m, a) compute the factor of safety against slidingb) compute the factor of safety against overturning
- A dam is triangular in cross section with the upstream vertical. Water is flushed at the top. The dam is 8 m high and 6 m wide at the bottom and weighs 23.5 KN per cu.m. The coefficient of friction between the base and the foundation is 0.80. Hydrostatic uplift varies from full at the heel to zero at the toe. Determine the factor of safety against overturning and sliding.1. A rectangular dam with base equivalent to 2.5-meters and height equivalent to 6-meters holds water with an upstream height of 4.5-meters. Compute for the factor of safety against sliding and overturning. Unit weight of concrete is 23.54 kN/cu.m. Consider 1 meter length strip. Disregard hydrostatic uplift pressure. The coefficient between the dam and the foundation is 0.4.A dam is triangular in cross section with the upstream face vertical. Water is flush with the top. The dam is 8 m high, 6 m wide at the base and weighs 23.5 kN/m3 . The coefficient of friction between the base and the foundation is 0.80. There is hydrostatic uplift that varies from full hydrostatic pressure at the heel to zero at the base. b.) Determine the factor against overturning.