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 E 24⁰ 3 = 34° n = 0.4 (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.
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 E 24⁰ 3 = 34° n = 0.4 (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.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff4e8619d-3927-4be5-a68e-32f39db50e87%2Fbe88a8f5-c3a2-4908-9da1-9e533b62449a%2F8jxc7g_processed.png&w=3840&q=75)
Transcribed Image Text: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.
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