For the retaining wall shown in Figure below, calculate the lateral pressure and its distribution against the wall, the resultant lateral force and its location. Fill c' = 0, ' = 32° Yt = 18 kN/m³ Reinforced concrete 2.4 m No water 0.5 m 1.0 m 0.3 m 0.3 m 0.3 m Clay c' = 5 kN/m³ 28 Yt=20 kN/m³

4. A retaining wall shown in the figure, determine the Rankine Active force, Pa, per unit length of the wall and the location of the resultant. H = 10 ft, H1 = 5 ft, Y1 = 105 Ib/ft? , Y2 = 122 Ib/ft? , 01 = 30° , $2 = 30° Sand H1 Y1 ci = 0 Groundwater table Н Sand Y2 (saturated unit weight) c2 = 0 Frictionless wall

The figure shows a weir, the base of which is 6m below the ground. The necessary flow net has also been drawn, assuming Kx = Kv = K. K = 0.005 m⁄sec. Compute the following: a. rate of seepage through the foundation in liters/sec. b. uplift pressure at“f”. c. uplift force per unit length measured along the axis of the

The figure shows a weir, the base of which is 6m below the ground. The necessary flow net has also been drawn assuming Kx = Kv = K. K = 0.005 m⁄sec. Compute the following: rate of seepage through the foundation in liters/sec. uplift pressure at“f”. uplift force per unit length measured along the axis of the

4. A retaining wall shown in the figure, determine the Rankine Active force, Pa, per unit length of the wall and the location of the resultant. H = 10 ft, H1 = 5 ft, Y1 = 105 lb/ft? , Y2 = 122 lb/ft? , þ1 = 30° , þ2 = 30° Sand Y1 H1 ci = 0 Groundwater table H. Sand Y2 (saturated unit weight) c2 = ( Frictionless wall

You are working for a consulting firm that has been asked to evaluate the factor of safety of the wall shown in the figure supported by a well-degraded sand. The resultant load behind the concrete wall acts at the one third point. Dw 1m 1.5 m 24 kN/m³ y = 20 kN/m³ 26.5 kN/m 24° = 34° n = 0.4 3 m (a) Determine the factor of safety if Dw − D > 1.5B. Ignore the lateral passive resistance due to the soil in front of the wall. (b) Determine the factor of safety if the ground water table rises to 0.5 m below the base of the wall. Discuss the significance of your observations.

Consider the retaiming wall shown in the Figure below Calculate the Rankine passive force per unit length of the wall and the location of the line of action of that resultant at which it acts on the retaming wall, - 15.72KN/m3 1=30 C1=0 2. WT rsat3D15.72KN/m3 12=26 E C1-10KN/m2 For the frictionless wall retaining a stratified soil and shown in Fig. E3.2, determine: (a) The active lateral earth pressure distribution with depth. (b) The passive lateral earth pressure distribution with depth. (c) The magnitude and location of the active and passive forces. (d) The resultant force. (e) The ratio of passive moment to active moment. 4, - 20 kPa m 7s19 kNms d =250 C-O Yser=20 kNm ダ=30 Hm

Given Sps = 1.7, le = 1.0, and the seismic design forces and weights in the table below find the diaphragm design force for level 2. Level R 2 1 Force (k) 40 30 20 Weight (K) 100 100 100

A concrete retaining wall is shown in the figure. The fill behind the wall has a unit weight of 100pcf whose active soil pressure may be assumed equivalent to a fluid pressure of 30psf per foot. The passive soil pressure may be assumed equivalent to a fluid pressure of 300 psf per foot. The live load surcharge behind the wall is equivalent to an additional of 2ft of fill. Unit weight of concrete is 150pcf. Consider 1 ft length of wall. which of the following most nearly gives the factor of safety against overturning?

Q4/ The Fig. 4 shows a smooth curved vane attached to a rigid foundation. The jet of water, rectangular in section 75 mm in wide and 25 mm in thick, strike the vane with a velocity of 25 m/s. Calculate the vertical and horizontal components of the force exerted on the vane and indicate in which direction these components act? Fig. 4 Q5/ Prove that the theoretical discharge over a sharp crested rectangle weir is: B√2gH7/2 theoretical - 2 3