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1. A gravity dam is shown in Figure 1. Assume the coefficient of friction between the...
Question Design the cross section of a gravity dam as shown in the figure below. Assume the specific unit weight of the concrete is 24 kN/m² and the friction factor between the dam and the underlying layer is 0.65. Consider only water loads and weight of the dam. Find the normal stress and check against sliding and overturning, assuming full uplift. (8 mark) 10 m 8 44 m 1:10 3:10
4. An earth dam in Figure 3 composes of a uniform material. It has a horizontal drainage blanket at the base that extends from the downstream toe to a distance of 30 m. The embankment has a permeability of 2.0 x 10-6 m/s. The freeboard is 3.0 m. Draw the phreatic line and thus determine the seepage through the dam. 5. The specific weight of the dam shown in Figure 3 is 2.63, and the coefficient of friction between dam...
The following figure shows a section of a long reinforced concrete cantilever wall with unit weight of 23.5 kN/m”. The distributed surcharge on the back of the wall is a live load. The following properties are known for the backfill: unit weight saturated unit weight shear strength parameters 7 = 17 kN/m3 7sat = 20 kN/m3 d =0 Ó' = 25° d = 20° friction angle between wall and soil a. Determine the factor of safety against overturning (about the...
Figure 15.45 shows a gravity retaining wall retaining a granular (c' = 0) backfill. The same soil is present at the bottom of the wall and on the left. The unit weight and the friction angle of the backfill are 18.5 kN/m3 and 35°, respectively. The unit weight of concrete is 24.0 kN/m3. Determine the factors of safety with respect to overturning, sliding, and bearing capacity failure. Use Rankine earth pressure theory.
Draw a flow netlfor the case of a long concrete dam shown in the Figure below and calculate the quantity of seepage underneath the dam. The soil underneath the dam is homogeneous and isotropic with a coefficient of permeability of 1.8 x 106 m/s. Determine the minimum weight of the dam required to maintain a factor of safety of 1.5 against the uplift of the dam. If the saturated unit weight of the soil is 18 KN/mP, check whether quicksand...
1. The concrete dam shown in the Figure weighs 23.6 kN/m² and rests on a solid foundation. Determine the minimum coefficient of friction between the dam and the foundation required to keep the dam from sliding. Base your analysis on a unit length of the dam.
Problem 2.63 〈 10 of 15 Consider the concrete gravity dam shown in (Figure 1). The density of concrete is P 2400 kg/m3. The density of water is p 1000 kg/m3. Suppose that d _ 12 m and b = 5 m. PartA Determine the critical height h of the water level that causes the concrete gravity dam to be on the verge of tipping over. Assume water also seeps under the base of the dam and produces a uniform...
the cross-section through a concrete dam is shown in the figure Iielow. Determine t ceéfficient of hydrailic conductivity of the foundai shown in the figure. The unit weight of water is 9.81 kN/m the puantity of seepage under the le downstream witer level is selected as datun a 1.00m0.80 m Datunm 500 m 5 (s in 20 m 10
Q.5) Water backs up behind a concrete dam as shown in Figure below. Leakage under the foundation gives a linear pressure distribution under the base of the concrete dam as shown in Figure. If the water depth H, is too great, the dam will topple over about its toe (Point A). For the dimensions given, determine the maximum water depth. Base your analysis on a unit length of the dam. The specific weight of the concrete is 23.7 kN/m”. (Answer...
A gravity retaining wall is shown in figure. Use Rankine active earth pressure theory. Determine:a. The factor of safety against overturningb. The factor of safety against slidingc. The factor of safety for bearing capacityd. The pressure on the soil at the toe and heelAssume, γconcrete = 24 kN/m3. Also, consider the weight of the soil behind the wall and consider the passive earth pressure.