Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Chapter 14, Problem 14.4P
To determine
Find the passive force
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Q.9 A smooth retaining wall is 4 m high and supports a cohesive backfill with a unit weight of 17 kN/m3. The shear strength parameters of the soil are cohesion =10 kPa and Ø = 10°. Calculate the total active thrust acting against the wall and the depth to the point of zero lateral pressure
3) A 5-m-high retaining wall is shown in Figure-2. Determine
A) Rankine active force per unit length of the wall and the location of the resultant
B) Rankine passive force per unit length of the wall and the location of the resultant
Determine the total active thrust, in kN/m, for a retaining wall (height 5.12 m.) with horizontal backfill given the following properties: Unit weight = 17.79 kN/m3, Angle of internal friction = 30°, Cohesion = 11.71 kPa, and Surcharge = 9.33 kPa.
Chapter 14 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
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- Consider a 4-m-high retaining wall with a vertical back and horizontal granular backfill, as shown in Figure 12.25. Given: γ = 18 kN/m3, Φ' = 40º, c' = 0, ẟ' = 20º, kv = 0, and kh = 0.2. Determine the passive force Ppe per unit length of the wall taking the earthquake effect into consideration.arrow_forward45.) A retaining wall supports a horizontal backfill that is composed of two types of soil. First layer: 5.91 meters high, Unit weight of 17.26 kN/m3, coefficient of active pressure of 0.291 Second layer: 5.36 meters high, Unit weight of 18.85 kN/m3, coefficient of active pressure of 0.301 Determine the distance of the total active force measured from the bottom of the wall. Round off to three decimal places.arrow_forwardUse Eq. (12.3), Figure P12.2, and the following values to determine the at-rest lateral earth force per unit length of the wall. Also find the location of the resultant. H = 5 m, H1 = 2 m, H2 = 3 m, γ = 15.5 kN/m3, γsat = 18.5 kN/m3, Φ' = 34º, c' = 0, q = 20 kN/m2, and OCR = 1.arrow_forward
- A 10-m retaining wall is shown in figure A, determine: a. The active thrust on the wall due to soil and water b. The active thrust on the wall due to soil only [dry] c. The increase in force on the wall if the soil is fully saturated with rainwater.arrow_forward3) A retaining wall is illustrated IN THE Figure. Determine the Rankine active force, (Pa) per unit length of the wall and the location of the resultant. H = 9 m, H1 = 4 m, Υ1 = 16.5 kN/m3, Υ2 = 20.2 kN/m3, ø'1 = 30, ø'2 = 34, q= 21 kN/m2arrow_forward
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