A 9m high slope soil has a unit weight of 17 kN/m^3. Friction of angle and cohesion along the rock surface are 20 degrees and 24 kN/m^3 respectively. The trial failure plane makes an angle of 15 degrees with the horizontal while the cut slope makes an angle of 30 degrees with the horizontal. a) Compute the force tending to cause sliding. b) Compute the resistance to sliding force. c) Compute the factor of safety against sliding.

A 9m high slope soil has a unit weight of 17 kN/m^3. Friction of angle and cohesion along the rock surface are 20 degrees and 24 kN/m^3 respectively. The trial failure plane makes an angle of 15 degrees with the horizontal while the cut slope makes an angle of 30 degrees with the horizontal. a) Compute the force tending to cause sliding. b) Compute the resistance to sliding force. c) Compute the factor of safety against sliding.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Q4: For the soil element shown, compute the stresses acting on the plane inclined by 40° with the horizontal plane then draw Mohr circle and place the stresses with respect to O.P. 20kPa 35kPa 100kPa 300 40°
A soil profile is shown in Figure ?-?. Compute the shear strength on the horizontal and vertical planes at points ? and ?.
The location of trial failure surface on a slope is shown in Figure and the stress components for each slice are listed in Table. Slice Shearing component (kN.m') -0.280 -0.227 0.383 3.214 6.543 8.368 9.792 Normal Length of trial failure surface=11m Soil friction angle 6° Cohesion, c=28kPa No. component (kN.m') 1.911 7.745 13.139 1 2 4 16.344 17.625 16.718 12.125 7 8. 4.228 0.486 Trial Failure Surface (a) Compute the driving stress. (b) Compute the stabilizing stress. (c) Analyze the safety of the slope.
4. a cohesionless soil slope angle β= 24, the internal friction angle φ = 36°, the stability safety factor is ( ).A. K= 1.46 B. K= 1.50C. K= 1.63 D. K= 1.70 5. The following narrative is correct ( ).A. When IL≤0, the clayey soil is in the hard stateB. When IL=0.25, the clayey soil is in the flow state C. IL≥1, the clay is in a plastic state D. IL=0.7, the clay is in soft plastic state
A soil profile is shown in Figure ?-?. Compute the shear strength on the horizontal plane at point ?, and on the vertical plane at point ?.
A butt weld is set on the cross section of an I-shaped beam. The re are bending moment M ard sheao forne V at the speicing position, where Ma || 20 KN m and v 374KN The beam is made of Q355 b steel and semi- automatic weld is used with welding rod E50. The des ign value of the weld tensile to Strength f" is 260 N/mnm?. c heek whethe please The stregth of the butt weld is safe by eloulation. ET 3.
The excavation shown below will be made on the clay for the construction of a highway. Potential Slope stability analysis is required on the slip plane. The ground is silty clay and c '= 18 kPa,' '= 20o and water = 100 kPa. At point a If the shear stress is 60 kPa, calculate the safety coefficient for this point.
From the figure shown, the fill behind the retaining wall has a unit weight of 18.5 kN/m³. Angle of internal friction is 32°. coefficient of friction between the footing base and the soil is 0.5. Neglect friction between wall and soil. Density of concrete is 24 kN/m³ 1. Which of the following gives the factor of safety against sliding if soil pressure on the left side is to be neglected? a. 1.89 b. 2.56 c. 4.52 d. 1.56 2. Which of the following gives the overturning moment? a. 358.39 kNm b. 204.63 kNm c. 458.39 kNm d. 299.39 kNm 3. Find the factor of safety against overturning a. 4.5 b. 3.5 c. 2.5 d. 5.5
Given: 1. Structural Component: Beam 300 mm x 400 mm Column 400 mm x 400 mm Slab thickness 110 mm 2. Dead Load: Super Imposed dead load = 4.5 KPa (including slab weight) CHB = 3.11 KPa 3. Seismic Parameter: Soil Profile - Sb Closest distance to the source - 10 km Ductility Coefficient R = 8.0 Seismic Zone Z=0.40 Ct = 0.0731 A. Compute TOTAL LATERAL FORCES in the 2nd floor? B. Compute LATERAL FORCES in the 3rd floor?
please answer both parts a) Point loads of 1000,5000, and 3000 lbs acts on point A, B, and C respectively. Determine the increases in vertical stress at depth 10ft below D. I A. 10ft B 10ft D 5ft b) You are a geotechnical engineer evaluating the stability of the slope shown in the figure below. You consider that a potential shearing surface could occur at the shear surface plotted in red. The soil has a friction angle of 30° and no cohesion. Determine the shear strength at point A along this surface when the ground water table is at B. and then determine the new shear strength when the ground water table rises to a level C. The unit weight of the soil is 120lb/ft and 123lb/ft above and below the water table respectively. potential Sheaning Surface 12ft 20H
3. Point A lies in a clayey sand layer with ' = 38, c' = 10 kPa, and Ko = 0.5. The ground surface is flat. A planned construction operation will cause the vertical effective stress at point A to reach 80 kPa. a. Use a compass to draw the expected MC for point A (after construction) on the space shown on the right. b. Will point A reach failure? Explain your answer with one sentence.
The major principal stress (kPa) on the soil element is (anti-clockwise shear +ve) 100 kPa 50 kPa -50 kPa 50 kPa 130.9 O 55.9 O 19.1 O