Principles of Foundation Engineering (MindTap Course List)
8th Edition
ISBN: 9781305081550
Author: Braja M. Das
Publisher: Cengage Learning
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Question
Chapter 12, Problem 12.3P
(a)
To determine
Find the Rankine active pressure distribution diagram behind the wall.
(b)
To determine
Find the depth of the tensile crack.
(c)
To determine
Find the ultimate skin friction resistance.
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Given the height of the retaining wall, H is 6.4 m; the backfill is a saturated clay with f 5 08, c 5 30.2 kN/m2 , gsat 5 17.76 kN/m3 , a. Determine the Rankine active pressure distribution diagram behind the wall. b. Determine the depth of the tensile crack, zc. c. Estimate the Rankine active force per foot length of the wall before and after the occurrence of the tensile crack.
QUESTION 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?
A retaining wall 6 m high with a vertical back face retains a homogeneous saturated soft clay. The saturated unit weight of the clay is 19.8 kN/m^3. Laboratory tests showed that the undrained shear strength, cu, of the clay is 14.7 kN/m^2.
a. Do the necessary calculations and draw the variation of Rankine’s active
pressure on the wall with depth.
b. Find the depth up to which a tensile crack can occur.
c. Determine the total active force per unit length of the wall before the tensile crack occurs.
d. Determine the total active force per unit length of the wall after the tensile crack occurs. Also find the location of the resultant.
Chapter 12 Solutions
Principles of Foundation Engineering (MindTap Course List)
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- Q.2 The thin-walled section is shown in figure has uniform wall thickness of 0.5 in. Assume a = 1 in, b = 3 in, h = 8 in. if it is subjected to vertical downward shear force, V = 1200 lb. a) Draw the shear flow diagram for the cross section. b) Compute the distance e from the center line of the wall to the shear center S.arrow_forwardWhere, 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 wallarrow_forwardA 4m high vertical wall supports, a saturated cohesive soil (du= 0) with horizontal surface. The top 2.5 m of the backfill has bulk density 17.6 kN/m³ and apparent cohesion of 15 kN/m². The bulk density and apparent cohesion of the bottom 1.5 m is 19.2 kN/m² and 20 kN/m² respectively. If tension cracks develop, what would be the total active pressure on the wall?Also draw the pressure distribution diagram.arrow_forward
- A 4m high vertical wall supports a saturated cohesive soil φ = 0 withhorizontal surface. The top 2.5m of the backfill has bulk density of 17.6kN/m3 and apparent cohesion of 15 kN/m2 The bulk density and apparent cohesion of the bottom 1.5 m is 19.2 kN/m3 and 20 kN/m2 respectively. If tension cracks develop, what would be the total active pressure on the wall? Also draw the pressure distribution diagramarrow_forwardRefer to Figure 12.6a. Given the height of the retaining wall, H is 18 ft; the backfill is a saturated clay with Φ = 0º, c = 500 lb/ft2, γsat = 120 lb/ft3,a. Determine the Rankine active pressure distribution diagram behind the wall.b. Determine the depth of the tensile crack, zc.c. Estimate the Rankine active force per foot length of the wall before and after the occurrence of the tensile crack.arrow_forward
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