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- A sandy soil has a drained angle of friction of 32°. The deviation stress at failure is 400 kPa. 13. Compute the angle that the failure plane makes with the major principal plane. a. 63° b. 64° c. 61° d. 60° 14. Compute the chamber confining pressure in kPa. a. 174.61 b. 177.42 c. 103.40 d. 170.50 15. Compute the shear stress in kPa at the point of the failure plane. a. 127.21 b. 339.22 c. 201.60 d. 169.61A vertical triangular plate has a base of 1m and depth of 2.1m. The base is horizontal and flushed with the water surface. What is the distance of force of water below the centroid of the plate?PROBLEM 1: The homogeneous structure shown weighs 21.45 kN per square meter of cross-section. The structure is subject to horizontal uniformly distributed load P1 and triangularly distributed load P2 perpendicular to side AB. Given: H1 = 9 m; H2 = 6 m; H3 = 12 m X1 = 6 m; X2 = 5 m P1 = 220 kN/m; P2 = 280 kN/m 4 Magnitude of resultant, R 4314.04 5 Angle of resultant direction from x-axis, θx 86.01 6 Distance of resultant from C measured along line CD, X 9.116
- 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.DetermineWhat is the maximum shear flow (qmals) that can occur in the section if it is subjected to a shear force of V = 80 kN? The dimensions of the section are: b = 450 mm, h = 250 mm, t = 25 mm. Please note that shear flow is typically measured in N/mm and it represents the distribution of shear stress along the section. a) 176,3 b) 184,7 c) 210,5 d) 225,9 e) 203,5A rectangular plate, 1m wide by 2.4m long is vertically submerged in the water. The shorter edge 2m below and parallel to the water surface. Evaluate how far in meters below the centroid of the plate is the resultant horizontal force acting each side of it.
- A masonry dam has a given cross-section shown. The intensity of hydrostatic uplift varies uniformly from 100% of the full hydrostatic upkift pressure at the heel to the zero atvthe toe. Concrete weighs 23.6 KN/m^3. Fibd the 1. Total vertical reaction at the bottom of the dam 2. The factor of safety against sliding if the coefficient of friction at base is 0.70 3.the factor of safety against overturning 4. The soil pressure at the heel and atvthe toeThe lower ends of the three steel rods are at the samelevel before the force P = 600 kN is applied to thehorizontal rigid slab. For each rod, A = 2000 mm2 α = 11 .7 μm/m0 C, and E = 200 Gpa. Determine therelationship between the force in rod C and the changein temperature ∆. Neglect mass of the slab.There is a line load of 120 kN/m acting on the ground surface along the y-axis. Determine thr vertical stress at a point P which has a x and z coordinates of 2 m and 3.5 respectively. a. 29.9 kPa b. 232.49 kPa c. 59.8 kPa d. 12.2 kPa
- Define while applying the direct shear test on sand grains and for glass rods, will the angle of internal friction be of same range?Water flows at a rate of 3 m3/s through a 300 mm diameter pipe in which there is a 90 degreebend.(a) if the pressure at the entrance to the bend is 450 kN/m2 (absolute), determine the total force necessary to anchor the bend. FricLon losses can be neglected (b) if the bend was only 60 degree, by how much would the anchoring force change?Calculate the effective vertical stress at point A in the soil profile shown below (g=10m/s2) a. 105.9kPA b. 93.7kPA c. 106.1kPA a. 159.1kPA