Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Question
Chapter 14, Problem 14.5P
(a)
To determine
Find the passive force
Find the Rankine’s passive pressure at the bottom of the wall.
(b)
To determine
Find the passive force
Find the Rankine’s passive pressure at the bottom of the wall.
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Where, X=36
A retaining wall (frictionless) is shown in
a) Plot the variation of active and passive lateral pressures with depth for soil profile shown in Fig.1
b) Determine the force due to surcharge in active side
c) Compute Total active force on the wall if the wall is 9m long
d) Evaluate the lateral stability of the wall by comparing the forces acting on the
wall
13.22 Consider the retaining wall shown in Figure 13.38. The height of the wall is 9.75m. and the unit weight of the sand backfill is 18.7kN/m3. Using Coulomb's equation, calculate the active force, Pa, on the wall for the following values of the angle of wall friction. Also, comment on the direction and location of the resultant.
45.) 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.
Chapter 14 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
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Similar questions
- A braced wall is shown in Figure 14.20. Given: H = 7 m, naH = 2.8 m, =30, =20, = 18 kN/m3, and c = 0. Determine the active thrust, Pa, on the wall using the general wedge theory. Figure 14.20arrow_forwardA 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_forwardProblem: The cantilever retaining wall shown in the figure resists active lateral earth pressure throughout its length. 1. Calculate the total lateral force on the wall due to active pressure in KN2. Determine the overturning moment due to lateral earth pressure in KN-m.3. Determine the resisting overturning moment in KN-marrow_forward
- For the frictionless wall shown in Figure No 1, Calculate the following: (a) The active lateral earth pressure distribution with depth. (b) The passive lateral earth pressure distribution with depth(c) The magnitudes and locations of the active and passive forces. (d) The resultant force and its location. (e) The ratio of passive moment to active moment. Note: UDL should be considered as mentioned in the figurearrow_forwardQUESTION 4. A retaining wall 6 m high with a vertical back face retains a homogenous saturated soft clay. The saturated unit weight of the clay is 19 kN/m3. Laboratory tests showed that the undrained shear strength, Cuof the clay is 16.8 kN/m3, f=0o. Do the necessary calculations and draw the variations of Rankine’s passive pressure on the wall with depth Determine the total passive force per unit length of the wall. Find the location of the resultant force?arrow_forward
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